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Sample records for insecta heteroptera pentatomidae

  1. Development and reproduction of Podisus distinctus (Heteroptera: Pentatomidae) fed on larva of Bombyx mori (Lepidoptera: Bombycidae)

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    Lacerda, M. C.; Ferreira, A. M. R. M.; Zanuncio, T. V.; Zanuncio, J. C.; Bernardino, A. S.; Espindula, M. C.

    2004-01-01

    Biological control has been reducing the use of chemical products against insect pests, specially predatory Pentatomidae. Species of this group can present high variations in their life cycle as a result of their diet. Thus, the objective of this research was to study nymph development and reproduction of Podisus distinctus (Stäl, 1860) (Heteroptera: Pentatomidae) fed on Bombyx mori L., 1758 (Lepidoptera: Bombycidae) larvae (T1), compared to those fed on Tenebrio molitor L., 1758 (Coleoptera:...

  2. The E. collaris-group of Edessa Fabricius, 1803 (Heteroptera: Pentatomidae: Edessinae)

    NARCIS (Netherlands)

    Fernandes, J.A.M.; Doesburg, van P.H.; Greve, C.

    2001-01-01

    The E. collaris group of Edessa Fabricius, 1803 (Heteroptera: Pentatomidae: Edessinae) is proposed and the species are described, including one new to science. This group includes two South American (Edessa collaris Dallas, 1851 and E. epulo Kirkaldy, 1909) and two Central American species (E.

  3. Contributions to the knowledge of Banasa Stål (Hemiptera, Heteroptera, Pentatomidae: Banasa chaca Thomas

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    Thereza de Almeida Garbelotto

    2011-09-01

    Full Text Available Contributions to the knowledge of Banasa Stål (Hemiptera, Heteroptera, Pentatomidae: Banasa chaca Thomas. The male of Banasa chaca Thomas is described with emphasis on external and internal genitalia and the female internal genitalia is described. Banasa chaca is newly recorded from Buenos Aires Province (Argentina.

  4. Demographic parameters of Nezara viridula (L.) (Heteroptera: Pentatomidae) reared on two diets developed for Lygus spp

    Science.gov (United States)

    Two artificial diets developed for rearing Lygus spp., a fresh yolk chicken egg based-diet (FYD) and a dry yolk chicken egg based-diet (DYD), were evaluated as an alternative food source for rearing the southern green stink bug, Nezara viridula (L.) (Heteroptera: Pentatomidae). Survival to adult was...

  5. Cytogenetika štěnic (Cimicidae) jako modelových ploštic (Insecta: Heteroptera)

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    Sadílek, David

    2010-01-01

    Cytogenetics of bed bugs (Cimicidae) as a model true bugs (Insecta: Heteroptera) The thesis provides current opinions about a phylogeny of bed bugs, family Cimicidae, and their classification within the order Heteroptera. There are briefly summarized cytological data about the order Heteroptera, known karyotypes of the cimicid subfamilies and introduction to cytogenetics of species Cimex lectularius Linnaeus, 1758. Heteroptera species differ from other organisms by holokinetic chromosomes, a ...

  6. Mating behavior of the predator Podisus nigrispinus (Heteroptera: Pentatomidae under exposure to neem: Comportamiento de apareamiento del depredador Podisus nigrispinus (Heteroptera: Pentatomidae expuesto al neem

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    Sharrine Omari Domingues de Oliveira

    2012-12-01

    Full Text Available The preservation of natural enemies is one of the basic foundations for integrated pest management. Botanical insecticides have shown low impact on beneficial arthropods in relation to survival. Insecticides studies usually focus on the direct physiological effects of insecticides, whereas relatively little attention is placed on the behavioral response to exposure. A study was conducted to evaluate the effect of the botanical insecticide neem (Azadirachta indica A. Juss.; Meliaceae on the mating behavior of the predatory stinkbug Podisus nigrispinus (Heteroptera: Pentatomidae. Unmated 5 to 7 d-old adults, separate by sex, were exposed to azadirachtin per contact on the treated surface. The treatments were composed for: untreated male and female; untreated male and treated female; treated male and untreated female; and treated male and female. Azadirachtin affected the duration of first mating (Wilcoxon test, χ2 = 13.38, df = 3, p = 0.004, which resulted in a higher effective average time of mating (EATM50 for treatment whose only female was treated with azadirachtin. This finding points to a sublethal effect of azadirachtin on mating behavior of P. nigrispinus that may compromise its reproduction.La preservación de los enemigos naturales es la base fundamental para el manejo integrado de las plagas. Los insecticidas botánicos han demostrado un bajo impacto sobre los artrópodos benéficos en relación a la supervivencia. Se desarrolló un estudio para evaluar el efecto del insecticida botánico neem (Azadirachta indica A. Juss.; Meliaceae sobre el comportamiento de apareamiento del chinche depredador Podisus nigrispinus (Heteroptera: Pentatomidae. Se expusieron adultos vírgenes de 5-7 días de edad, separados por sexo, a residuos secos de este extracto. Machos y hembras vírgenes entre 5 y 7 d de edad fueron expuestos a la azadiractina, por contacto directo con superficies tratadas. Los tratamientos fueron: machos y hembras no tratados

  7. DIVERSITY OF THE SOUTHERN GREEN STINK BUG NEZARA VIRIDULA (L. (HETEROPTERA: PENTATOMIDAE

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    V MEGLIČ

    2002-05-01

    Full Text Available The southern green stink bug Nezara viridula (L. (Heteroptera: Pentatomidae is a global pest of considerable ecological, agricultural and economical interest. The ancestral home of this species is supposed to be Africa and/or Mediterranean and presumably it was spread worldwide during the last two centuries with human trade and agriculture. Bugs found today on different continents do not differ morphologically, however there are substantial differences in their mating behaviour. We used horizontal starch gel electrophoresis to determine the suitability of biochemical markers for assessment of genetic variation between geographically isolated populations of N. viridula. The initial survey of populations from Slovenia, France, French West Indies and Brazil resulted in the resolution of polymorphic banding patterns within the following enzyme systems: GPI, IDH, MDH, ME, MPI and PGM. Results indicate there are consistent differences among tested populations.

  8. INFLUENCE OF TEMPERATURE ON NYMPHAL DEVELOPMENT OF Podisus distinctus (DALLAS (HETEROPTERA: PENTATOMIDAE

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    Germi Porto Santos

    2004-07-01

    Full Text Available The objective of this research was to study the effect of five temperatures (17ºC; 21ºC; 25ºC; 29ºC and 33oC on survival and nymph development of Podisus distinctus (Dallas (Heteroptera: Pentatomidae in laboratory. Period of egg incubation decreased with temperature elevation being lower at 29oC and lethal at 33oC. This indicates that superior thermal limit for this species can be found between these temperatures. Optimal temperature for egg viability was 23.7oC. Nymphs of Podisus distinctus completed its development between 17 and 29oC with optimal temperature at 26.3oC with higher nymph viability at intermediate temperatures (19ºC and 25oC. Optimal temperature for rearing this predator lay between 25ºC and 27oC.

  9. Development and reproduction of Podisus distinctus (Heteroptera: Pentatomidae) fed on larva of Bombyx mori (Lepidoptera: Bombycidae).

    Science.gov (United States)

    Lacerda, M C; Ferreira, A M R M; Zanuncio, T V; Zanuncio, J C; Bernardino, A S; Espindula, M C

    2004-05-01

    Biological control has been reducing the use of chemical products against insect pests, especially predatory Pentatomidae. Species of this group can present high variations in their life cycle as a result of their diet. Thus, the objective of this research was to study nymph development and reproduction of Podisus distinctus (Stäl, 1860) (Heteroptera: Pentatomidae) fed on Bombyx mori L., 1758 (Lepidoptera: Bombycidae) larvae (T1), compared to those fed on Tenebrio molitor L., 1758 (Coleoptera: Tenebrionidae) (T2) and Musca domestica L., 1758 (Diptera: Muscidae) larvae (T3) at a temperature of 25 +/- 0.5 degrees C, relative humidity of 70 +/- 2%, and photophase of 12 h. Predators fed on B. mori showed duration of the nymph phase (18.68 +/- 1.02) similar to those fed on T. molitor (18.32 +/- 1.49). Pre-oviposition and oviposition periods and number of egg masses, besides eggs and nymphs per female, were higher with B. mori (5.83 +/- 2.02; 15.00 +/- 7.40; 8.42 +/- 1.84; 296.69 +/- 154.75; and 228.55 +/- 141.04, respectively) while longevity of males and females of P. distinctus was 25.76 +/- 16.15 and 35.00 +/- 16.15 days with T. molitor, and 20.57 +/- 13.60 and 23.46 +/- 12.35 days with B. mori, respectively.

  10. Biodiversity of Coreoidea and Pentatomidae (Heteroptera) from Atlantic forest protected areas. Insights into their conservation.

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    Dellapé, Gimena; Colpo, Karine D; Melo, María C; Montemayor, Sara I; Dellapé, Pablo M

    2018-01-01

    Although the majority of threatened species are likely to be tropical insects, knowledge of the diversity, ecological role and impact of insect biodiversity loss on ecosystem processes is very limited. Specimens belonging to four families of Heteroptera: Pentatomidae, Coreidae, Alydidae and Rhopalidae, were collected from a protected area in the Paraná Forest, the largest ecoregion of the Atlantic Forest, in Argentina. The assemblages were characterized and the biodiversity estimated, and they were compared with the assemblages found in five other protected areas in the Brazilian Atlantic Forest. In our study area, Pentatomidae had the greatest richness and diversity; Coreidae was the second most diverse family, with highest sampling deficit, highest percentage of singletons, and lowest inventory completeness; and Rhopalidae was the best sampled family with asymptotic rarefaction curves. We explored the application of the Species Conservation Importance index, following four criteria, to evaluate the relative importance of the pentatomid species studied and its usefulness for assigning conservation values to areas. We found similar Site Conservation Values among the six areas and noted that the use of criteria was limited by the lack of information, being crucial to increase the knowledge of most of the species.

  11. Effect of female weight on reproductive potential of the predator Brontocoris tabidus (Signoret, 1852 (Heteroptera: Pentatomidae

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    Isaias Oliveira

    2005-03-01

    Full Text Available The objective of this work was to determine the fecundity of the predator Brontocoris tabidus (Signoret (Heteroptera: Pentatomidae females of two weight classes aiming to define, which one presented higher productivity in the laboratory. Males and females of B. tabidus were reared from nymphs fed with Tenebrio molitor L. (Coleoptera: Tenebrionidae pupae in laboratory. Females of B. tabidus weighting 95 to 150 mg and those with 160 to 220 mg constituted two treatments. Oviposition period and numbers of egg masses, eggs and nymphs per female of B. tabidus were higher in the treatment with heavier females, while the periods of preoviposition, between egg mass laying, egg incubation and number of eggs per egg mass, besides the percentage of nymphs hatched and adult longevity were similar between treatments. Heavier females of B. tabidus presented better productivity and for this reason they should be used in programs of mass rearing this predator.Este trabalho apresenta a fecundidade de fêmeas do predador Brontocoris tabidus (Signoret (Heteroptera: Pentatomidae de duas classes de peso, objetivando avaliar qual delas apresenta melhor produtividade em criações mantidas em laboratório. Machos e fêmeas foram alimentadas, desde o estádio ninfal, com pupas do besouro Tenebrio molitor L. (Coleoptera: Tenebrionidae. Fêmeas de B. tabidus pesando entre 95 e 150 mg e entre 160 e 220 mg constituíram as duas classes de peso. O período de oviposição e os números de posturas, de ovos e ninfas por fêmea de B. tabidus foram maiores naquelas fêmeas pertencentes à classe mais pesada, enquanto os períodos de pré-oviposição, entre posturas, incubação dos ovos e número de ovos por postura, bem como a percentagem de eclosão de ninfas e a longevidade dos adultos foram semelhantes entre ambas as classes de peso. Fêmeas mais pesadas de B. tabidus apresentaram maior número de ovos por fêmea e por esta razão devem ser utilizadas em programas de cria

  12. Development and reproduction of Podisus distinctus (Heteroptera: Pentatomidae fed on larva of Bombyx mori (Lepidoptera: Bombycidae

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    M. C. Lacerda

    Full Text Available Biological control has been reducing the use of chemical products against insect pests, specially predatory Pentatomidae. Species of this group can present high variations in their life cycle as a result of their diet. Thus, the objective of this research was to study nymph development and reproduction of Podisus distinctus (Stäl, 1860 (Heteroptera: Pentatomidae fed on Bombyx mori L., 1758 (Lepidoptera: Bombycidae larvae (T1, compared to those fed on Tenebrio molitor L., 1758 (Coleoptera: Tenebrionidae (T2 and Musca domestica L., 1758 (Diptera: Muscidae larvae (T3 at a temperature of 25 ± 0.5ºC, relative humidity of 70 ± 2%, and photophase of 12 h. Predators fed on B. mori showed duration of the nymph phase (18.68 ± 1.02 similar to those fed on T. molitor (18.32 ± 1.49. Pre-oviposition and oviposition periods and number of egg masses, besides eggs and nymphs per female, were higher with B. mori (5.83 ± 2.02; 15.00 ± 7.40; 8.42 ± 1.84; 296.69 ± 154.75; and 228.55 ± 141.04, respectively while longevity of males and females of P. distinctus was 25.76 ± 16.15 and 35.00 ± 16.15 days with T. molitor, and 20.57 ± 13.60 and 23.46 ± 12.35 days with B. mori, respectively.

  13. Lightweight males of Podisus nigrispinus (Heteroptera: Pentatomidae neglect lightweight females due low reproductive fitness

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    A. I. A. Pereira

    Full Text Available Abstract Sexual choice by male stink bugs is important because females that experience food shortages lay fewer eggs with lower viability compared with well-fed females. In this study, we investigated whether Podisus nigrispinus (Dallas (Heteroptera: Pentatomidae males fed with a low-quality diet during its nymphal stage show selectivity for sexual partners resulting in high-quality progeny. Lightweight males and females were obtained from nymphs fed weekly with Tenebrio molitor L. (Coleoptera: Tenebrionidae pupae. By contrast, heavyweight males and females were fed three times a week and received an extra nutritional source: cotton leaves, Gossypium hirsutum L. (Malvaceae. Lightweight males preferred to mate with heavy females (77.78 ± 14.69%, whereas heavyweight males did not discriminated between light or heavyweight females. Females mated with lightweight males showed similar levels of reproduction to those mated with heavyweight males. The results provide an indication of the importance of male and female body weight for sexual selection in Asopinae stink bugs.

  14. New evidences supporting trophobiosis between populations of Edessa rufomarginata (Heteroptera: Pentatomidae and Camponotus (Hymenoptera: Formicidae ants

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    Daniel Paiva Silva

    2016-06-01

    Full Text Available ABSTRACT Despite its important effect on the maintenance of tritrophic interactions among plants, insect herbivores, and ants, there is still a paucity of natural history and basic biology information involving trophobiosis among Heteroptera stink bugs. Here, based on previous observations of a new trophobiotic interaction between Edessa rufomarginata (De Geer, 1773 and Camponotus rufipes (Fabricius, 1775 ants, we describe the chemical profile of the honeydew obtained by Gas Chromatography–Mass Spectrometry. There were mainly three different sugars (trehalose, glucose, and sorbose within our samples. The extrafloral nectaries of Caryocar brasiliense Camb., the host plant of E. rufomarginata, attracts a wide assemblage of Cerrado ants with varying aggressiveness toward herbivores. Therefore, this facultative trophobiotic interaction may allow the survival of the stink bug while feeding on the risky, highly ant-visited plant. Given the rarity of trophobiotic interactions between Pentatomidae species and ants and considering a zoological perspective within this family, here we discuss the ecological and evolutionary routes that may allow the rise of these interactions.

  15. Susceptibility of pest Nezara viridula (Heteroptera: Pentatomidae) and parasitoid Trichopoda pennipes (Diptera: Tachinidae) to selected insecticides.

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    Tillman, P Glynn

    2006-06-01

    Susceptibility of the southern green stink bug, Nezara viridula (L.) (Heteroptera: Pentatomidae), and its endoparasitoid Trichopoda pennipes (F.) (Diptera: Tachinidae) to acetamiprid, cyfluthrin, dicrotophos, indoxacarb, oxamyl, and thiamethoxam was compared in residual and oral toxicity tests. In the residual toxicity test, cyfluthrin, dicrotophos, and oxamyl were highly toxic to N. viridula. Thiamethoxam was moderately toxic to these insects. Each of the four insecticides was highly toxic to T. pennipes after prolonged tarsal contact with dried residues of these chemicals. In the oral toxicity test, where N. viridula fed on food covered with insecticide residues, none of the insecticides were toxic to adults of this stink bug, but acetamiprid, dicrotophos, and thiamethoxam were moderately toxic to the nymphs. In the oral toxicity test, where N. viridula fed on a gel-food containing insecticides, cyfluthrin, dicrotophos, oxamyl, and thiamethoxam were highly toxic to this stink bug. In an oral toxicity test using contaminated sugar water, all of the insecticides were highly toxic to T. pennipes. Because insecticides were as toxic, or more toxic, to T. pennipes than to N. viridula, it is extremely important to conserve this parasitoid by applying these insecticides for control of southern green stink bugs only when the pest reaches economic threshold.

  16. Glyphosate-based herbicides toxicity on life history parameters of zoophytophagous Podisus nigrispinus (Heteroptera: Pentatomidae).

    Science.gov (United States)

    C Zanuncio, José; C Lacerda, Mabio; Alcántara-de la Cruz, Ricardo; P Brügger, Bruno; Pereira, Alexandre I A; F Wilcken, Carlos; E Serrão, José; S Sediyama, Carlos

    2018-01-01

    The increase of agricultural areas with glyphosate-resistant (GR) crops, and use of this herbicide in Brazil, makes necessary to assess its impacts on non-target organisms. The objective was to evaluate the development, reproduction and life table parameters of Podisus nigrispinus (Heteroptera: Pentatomidae) reared on GR-soybean plants treated with glyphosate formulations (Zapp-Qi, Roundup-Transorb-R and Roundup-Original) at the recommended field dose (720g acid equivalent ha -1 ). Glyphosate formulations had no affect on nymph and adult weight of this predator. Fourth instar stage was shortest with Zapp Qi. Egg-adult period was similar between treatments (26 days) with a survival over 90%. Zapp-Qi and Roundup-Transorb-R (potassium-salt: K-salt) reduced the egg, posture and nymph number per female, and the longevity and oviposition periods of this predator. Podisus nigrispinus net reproductive rate was highest in GR-soybean plants treated with Roundup-Original (isopropylamine-salt: IPA-salt). However, the duration of one generation, intrinsic and finite increase rates, and time to duplicate the population, were similar between treatments. Glyphosate toxicity on P. nigrispinus depends of the glyphosate salt type. IPA-salt was least harmless to this predator. Formulations based on K-salt altered its reproductive parameters, however, the development and population dynamic were not affect. Therefore, these glyphosate formulations are compatible with the predator P. nigrispinus with GR-soybean crop. Copyright © 2017 Elsevier Inc. All rights reserved.

  17. Species composition, monitoring, and feeding injury of stink bugs (Heteroptera: Pentatomidae) in blackberry.

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    Brennan, S A; Liburd, O E; Eger, J E; Rhodes, E M

    2013-04-01

    Blackberry (Rubus spp.) production in Florida has increased > 100% within the past two decades. and several insect pests, including stink bugs (Heteroptera: Pentatomidae), have been observed feeding on this crop. The objectives for this study were to determine the stink bug species present in blackberry; to develop monitoring tools for stink bugs in blackberry; and to describe feeding injury to blackberries by Euschistus quadrator Rolston, a relatively new stink bug pest to Florida, that has spread throughout the state. In a field survey, E. quadrator was the most abundant stink bug species, followed by Euschistus servus Say, Euschistus obscurus (Palisot de Beauvois), Thyanta custator (F.), Proxys punctulatus (Palisot de Beauvois), and Podisus maculiventris Say. Yellow pyramid traps caught more stink bugs than tube traps with or without the addition of Euschistus spp. pheromone lures. There were no statistical differences between traps baited with a Trécé Pherocon Centrum lure, a Suterra Scenturion lure, and an unbaited trap. These results were supported by Y-tube olfactometer assays with E. quadrator where there were no differences between pheromone baited lures and a control. Injury to berries caused by E. quadrator adults and third instars was similar, and both adults and third instars fed more on green berries compared with turning berries. In addition, adults fed more on green berries compared with ripe fruit. The most common injury to green berries was discoloration. In contrast, misshapen drupelets were commonly seen on turning and ripe berries. The potential for managing stink bugs in blackberries to prevent them from reaching damaging levels is discussed.

  18. Development, survival and reproduction of Podisus nigrispinus (Dallas, 1851 (Heteroptera: Pentatomidae with salt and amino acids solutions supplementary diet

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    Simone Patrícia Carneiro Freitas

    2006-05-01

    Full Text Available This study presents the effect of a supplementary diet with amino acids and sodium chloride solutions in addition to prey on the development, survival and reproduction of the predator Podisus nigrispinus (Heteroptera, Pentatomidae. Both solutions showed deleterious effects on nymph survival, adult weight, female longevity, number of egg masses, eggs per female, eggs per egg mass and nymphs per female besides egg viability of P. nigrispinus when compared with diet with water and prey. When compared with plant supplements in the diet the use of amino acids and salt solutions for mass rearing of P. nigrispinus was inferior.O presente estudo mostra o efeito da suplementação alimentar com soluções de aminoácidos e salina (NaCl no desenvolvimento, sobrevivência e reprodução de Podisus nigrispinus (Dallas (Heteroptera: Pentatomidae. Ambas soluções causaram efeito deletério na sobrevivência ninfal, peso dos adultos, longevidade das fêmeas e nos números de posturas, de ovos/fêmea, de ovos/postura e de ninfas, bem como na viabilidade dos ovos de P. nigrispinus quando comparado com estes insetos que além de presa receberam água. Estes resultados são discutidos em comparação com o efeito positivo que a suplementação alimentar com plantas tem sido relatada para esses predadores e sugerem que o uso de plantas é melhor que a substituição por solução de aminoácidos em sistemas de criação em laboratório desses predadores.

  19. Potencial reprodutivo horário do predador de lagartas desfolhadoras do eucalipto: Podisus nigrispinus (Heteroptera: Pentatomidae Hourly reproductive potential of the predator of Lepidoptera eucalypt desfoliators: Podisus nigrispinus (Heteroptera: Pentatomidae

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    Evaldo Martins Pires

    2006-12-01

    Full Text Available Insetos da subordem Heteroptera apresentam ampla diversidade faunística, incluindo predadores de pragas agrícolas e florestais. Espécies do gênero Podisus destacam-se entre os percevejos predadores no controle biológico de lagartas desfolhadoras de eucalipto, soja, algodão e tomate. O objetivo foi estudar o comportamento reprodutivo e a atividade de predação de Podisus nigrispinus (Heteroptera: Pentatomidae alimentado com pupas de Tenebrio molitor L. (Coleoptera: Tenebrionidae em laboratório. Casais desse predador foram acondicionados em potes plásticos de 500 mL com pupas de T. molitor e água em tubos tipo anestésico odontológico, inseridos na tampa desses potes. Foram observados: a postura o acasalamento e a alimentação de machos e fêmeas de P. nigrispinus às 0 h, 6 h, 12 h e 18 h. O porcentual de fêmeas de P. nigrispinus predando foi de 26,26; 24,39; 15,91; e 34,21% e o de machos, de 7,41; 6,20; 4,88; e 5,77%, às 0 h, 6 h, 12 h e 18 h, respectivamente. O maior número de fêmeas ovipositando foi observado às 00 h. A maior porcentagem de fêmeas predando foi às 18 h (32,21% e a de atividade de postura, à 0 h (50,56% dos ovos depositados, enquanto foram registrados apenas 1,66% dos ovos às 12 h. O número de acasalamentos de P. nigrispinus foi maior às 12 h (34,58%, seguido das 00 h (29,65%, 18 h (22,36% e 6 h (16,60%.Insects of the sub-order Heteroptera present a wide diversity including predators of agricultural and forest pests. Species of the genus Podisus are important agents of biological control of defoliating caterpillars of eucalyptus, soybem, cotton and tomato. The objective was to study the reproductive behavior and predation rate of Podisus nigrispinus (Dallas (Heteroptera: Pentatomidae fed with Tenebrio molitor L. (Coleoptera: Tenebrionidae pupae in the laboratory. Pairs of this predator were placed in 500 ml plastic pots with T. molitor pupae and water in tubes of anesthetic odontologic type inserted in the

  20. No direct effects of resistant soybean cultiva IAC-24 on Podisus nigrispinus (Heteroptera: Pentatomidae Efectos no directos de resistencia del cultivar de soya IAC-24 sobre Podisus nigrispinus (Heteroptera: Pentatomidae

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    José Cola Zanuncio

    2012-12-01

    Full Text Available The parameters of survival, development and reproduction of Podisus nigrispinus Dallas, 1851 (Heteroptera: Pentatomidae may be affected by feeding on soybean (Glycine max L. Merr.; Fabaceae cultivars. The direct effect was evaluated of the insect-resistant soybean 'IAC-24' (insect-susceptible soybean 'UFVS-2006' + pupae of Tenebrio molitor L., 1758 Coleoptera: Tenebrionidae versus 'IAC-24' plants + pupae of T. molitor in the nymph and adult stages of the predator P. nigrispinus. The duration of the nymph stage was similar between treatments, but 'IAC-24' reduced the duration of the IV instar of this predator. The survival of P. nigrispinus was similar between treatments in the instars I, II, IV and V and in the nymph stage, but the survival of the III instar was longer with 'IAC-24' plants. The body mass of nymphs in the first day of the III, IV, and V instars after ecdysis and newly emerged adults; reproductive characteristics (periods of pre-oviposition, oviposition, post-oviposition and egg incubation; egg laying interval, number of egg masses per female, nymphs per female, nymphs per egg mass and percentage of nymphs hatching and life span of males and females of P. nigrispinus were similar between treatments. The resistant soybean 'IAC-24' showed no direct deleterious effects on P. nigrispinus, which implies its innocuity and compatibility with this predator.Los par ámetros de supervivencia, desarrollo y reproducción de Podìsus nìgrìspìnus Dallas, 1851 (Heteroptera: Pentatomidae pueden verse afectados por la alimentación en cultivos de soya (Glycìne max L. Merr.; Fabaceae. Se evaluó el efecto directo de la soya 'IAC-24' resistente a insectos (soya 'UFVS-2006' susceptible a insectos + pupas de Tenebrìo molìtor L., 1758 Coleoptera: Tenebrionidae vs. plantas 'IAC-24' + pupas de T. molìtor sobre los estados de ninfa y adulto del depredador P. nìgrìspìnus. La duración del estado ninfal fue similar entre tratamientos, no obstante

  1. Tabelas de fertilidade e de esperança de vida de Tynacantha marginata Dallas (Heteroptera, Pentatomidae, Asopinae alimentado com larvas de Tenebrio molitor L. (Coleoptera, Tenebrionidae e folhas de Eucalyptus urophylla S.T. Blake Life and fecundity tables of the predator Tynacantha marginata Dallas (Heteroptera, Pentatomidae reared with Tenebrio molitor L. larvae (Coleoptera, Tenebrionidae and Eucalyptus urophylla S.T. Blake leaves

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    Luciano Andrade Moreira

    1995-01-01

    Full Text Available The objective of this research was to study the effect of feeding on Eucalyptus leaves on the life and fecundity tables of Tynacantha marginata Dallas, 1851 (Heteroptera: Pentatomidae. Higher mortality of this predator occurred during second week of life, when the nymphs were starting second instar. The fecundity table showed that the nymphal period of T. marginata lasted four weeks, with viability of 57,9% and total longevity of 21 weeks. Egg oviposition period took 10 weeks. The population parameters (R0, rm and λ showed a 50.69 times populational increase after one generation.

  2. Pentatomidae (Hemiptera: Heteroptera) in Herbaceous and Shrub Strata of Atlantic Forest Remnants in Northeastern Brazil.

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    Firmino, João V L; Mendonça, Milton D S; Lima, Iracilda M M; Grazia, Jocelia

    2017-06-01

    Most pentatomids are phytophagous, many of which are economically important crop pests. The family may also be a potentially important group to monitor the health of neotropical forests. However, there is a lack of biological inventories of Pentatomidae, especially in forest remnants of the Brazilian Atlantic forest. This is the first systematic survey of pentatomids reported in three Atlantic forest fragments in northeastern Brazil. In total, 997 individuals belonging to 38 species were recorded, some of which are considered economically important pests. Singletons and doubletons represented 45.9% of all species collected. The most abundant genera were Mormidea Amyot & Serville, 1843; Stictochilus Bergroth, 1918; Xynocoris Garbelotto & Campos 2014; and Edessa F., 1803. Species richness differed among fragments, with a richness gradient correlated with decreased urbanization and increased fragment size. The species abundance distribution fitted the logseries function but not the lognormal, in accordance with what is found for other assemblages in southern Brazil. Species composition also changed, in association with changes in temperature (revealed by the canonical correspondence analysis [CCA]), among fragments. Murici is one of the last remaining dense forests with high plant diversity in the region, having higher pentatomid species richness and a distinctive fauna. This first diversity study for Pentatomidae in fragments of tropical Atlantic Forest in northeastern Brazil reveals richness comparable with those from subtropical southern Brazil, with some species in common as well. © The Authors 2017. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  3. Phylogenetic divergences of the true bugs (Insecta: Hemiptera: Heteroptera), with emphasis on the aquatic lineages

    DEFF Research Database (Denmark)

    Wang, Yan-hui; Cui, Ying; Rédei, Dávid

    2016-01-01

    Heteroptera are among the most diverse hemimetabolous insects. Seven infraorders have been recognized within this suborder of Hemiptera. Apart from the well-established sister-group relationship between Cimicomorpha and Pentatomomorpha (= Terheteroptera), the two terminal lineages, the relationsh...

  4. Eficiência de Metarhizium anisopliae no controle do Percevejo-do-Colmo Tibraca limbativentris (Heteroptera: Pentatomidae em lavoura de arroz irrigado Efficiency of Metarhizium anisopliae on rice stem bug Tibraca limbativentris (Heteroptera: Pentatomidae control in flooded rice field

    Directory of Open Access Journals (Sweden)

    José Francisco da Silva Martins

    2004-12-01

    Full Text Available O percevejo-do-colmo, Tibraca limbativentris Stal, 1860 (Heteroptera: Pentatomidae, é altamente prejudicial à cultura do arroz no Brasil, principalmente em sistemas de cultivo irrigados por inundação. O efeito de duas formas de aplicação, conídios em suspensão e veiculados em grãos de arroz autoclavado, da cepa (CP 172 de Metarhizium anisopliae (Metsch. Sorok., no controle do percevejo, foi avaliado em três experimentos conduzidos em 1991, 1993 e 1994, em lavoura comercial de arroz irrigado. Em 1991, tanto a pulverização de conídios como a distribuição manual grãos de arroz cobertos com material fúngico em dosagem equivalente a 7,2 x 10(13 conídios.ha-1, sobre o solo e entre os colmos de arroz, onde os percevejos estavam alojados, reduziram significativamente a população natural do inseto com eficiência de controle de 52,6% e 61,8%, respectivamente. Ainda em 1991, estudo sobre o estabelecimento e persistência da cepa no solo do arrozal, com base na contagem de unidades formadoras de colônias (UFC, indicou que o fungo manteve-se viável na entressafra, até 216 dias após a aplicação, época da implantação de novos arrozais. O número de UFC foi maior nas parcelas tratadas com os grãos de arroz cobertos com material fúngico. O crescimento linear do número de UFC, no solo nas parcelas testemunhas, evidenciou disseminação do fungo para partes anteriormente não tratadas do arrozal. Resultados significativos de controle com a aplicação da suspensão de conídios e dos grãos de arroz com o fungo, na dose de 5 x 10(13 conídios.ha-1, também foram obtidos em 1993, com 51,8% e 48,2% de eficiência, respectivamente. Em 1994, a aplicaç��o da suspensão de 5 x 10(13 conídios.ha-1 resultou em 39,5% de controle do inseto. O índice de confirmação de infeção, contudo, foi baixo, nos dois anos, atingindo, no máximo, 20%, em 1993. O baixo número de insetos com micose, em comparação ao índice de mortalidade

  5. Reactions of green lizards (Lacerta viridis) to major repellent compounds secreted by Graphosoma lineatum (Heteroptera: Pentatomidae).

    Science.gov (United States)

    Gregorovičová, Martina; Černíková, Alena

    2015-06-01

    The chemical defence of Heteroptera is primarily based on repellent secretions which signal the potential toxicity of the bug to its predators. We tested the aversive reactions of green lizards (Lacerta viridis) towards the major compounds of the defensive secretion of Graphosoma lineatum, specifically: (i) a mixture of three aldehydes: (E)-hex-2-enal, (E)-oct-2-enal, (E)-dec-2-enal; (ii) a mixture of these three aldehydes and tridecane; (iii) oxoaldehyde: (E)-4-oxohex-2-enal; (iv) secretion extracted from metathoracic scent glands of G. lineatum adults and (v) hexane as a non-polar solvent. All chemicals were presented on a palatable food (Tenebrio molitor larvae). The aversive reactions of the green lizards towards the mealworms were evaluated by observing the approach latencies, attack latencies and approach-attack intervals. The green lizards exhibited a strong aversive reaction to the mixture of three aldehydes. Tridecane reduced the aversive reaction to the aldehyde mixture. Oxoaldehyde caused the weakest, but still significant, aversive reaction. The secretion from whole metathoracic scent glands also clearly had an aversive effect on the green lizards. Moreover, when a living specimen of G. lineatum or Pyrrhocoris apterus (another aposematic red-and-black prey) was presented to the green lizards before the trials with the aldehyde mixture, the aversive effect of the mixture was enhanced. In conclusion, the mixture of three aldehydes had the strong aversive effect and could signal the potential toxicity of G. lineatum to the green lizards. Copyright © 2015 Elsevier GmbH. All rights reserved.

  6. Potencial reprodutivo de Supputius cincticeps (Stal (Heteroptera: Pentatomidae influenciado pelo peso do corpo da fêmea - DOI: 10.4025/actascibiolsci.v25i1.2081 Reproductive potential of the predator Supputius cincticeps (Heteroptera: Pentatomidae affected by female body weight - DOI: 10.4025/actascibiolsci.v25i1.2081

    Directory of Open Access Journals (Sweden)

    Jose Eduardo Serrão

    2003-04-01

    Full Text Available O potencial reprodutivo de fêmeas de Supputius cincticeps (Stal (Heteroptera: Pentatomidae de duas classes de peso foi avaliado. Machos e fêmeas desse predador foram obtidos de ninfas alimentadas com pupas de Tenebrio molitor L. (Coleoptera: Tenebrionidae. Foram analisadas fêmeas com peso inferior a 45 mg (fêmeas leves e superior a 60 mg (fêmeas pesadas. A longevidade e os períodos de pré-oviposição, oviposição e pós-oviposição foram semelhantes entre fêmeas das duas classes de peso, enquanto aquelas mais pesadas apresentaram maior número de posturas, ovos, ovos/postura e ninfas. Períodos entre posturas e de incubação dos ovos foram menores para fêmeas com peso superior a 60mg. Esses resultados são discutidos em relação ao uso de fêmeas mais pesadas de S. cincticeps para aumentar a produção em criação massal desse predadorThe reproductive potential of Supputius cincticeps (Stal (Heteroptera: Pentatomidae females of two weight classes was evaluated with males and females of this predator obtained from nymphs fed on Tenebrio molitor L. (Coleoptera: Tenebrionidae pupae. Females of S. cincticeps weighing less than 45 mg (light females and more than 60 mg (heavy females constituted the treatments. Pre-oviposition, oviposition and post-oviposition periods besides adult longevity were similar between treatments while number of egg masses, eggs, eggs/egg mass and number of nymphs hatched were higher for heavier females. Periods between egg mass laying and egg incubation were shorter for insects of the last treatment. These results are discussed in relation to the use of heavier females of S. cincticeps to improve mass rearing of this predator in laboratory

  7. New records of Gerromorpha and Nepomorpha (Insecta: Hemiptera: Heteroptera) from South America.

    Science.gov (United States)

    Moreira, Felipe Ferraz Figueiredo; Rodrigues, Higor D D; Barbosa, Julianna Freires; Reduciendo Klementová, Barbora; Svitok, Marek

    2016-01-01

    Aquatic and semiaquatic Heteroptera occur on all continents except Antarctica and occupy a wide variety of habitats, including lentic and lotic water bodies, perennial or temporary. In the Neotropical Region, there is a lack of knowledge concerning the geographical distribution of most represented species, which can only be solved by the collection of specimens in under-studied areas and publication of new records and lists of species. New records are presented for eleven species of Gerromorpha and ten Nepomorpha, including first records from Venezuela (Brachymetra lata, Limnogonus hyalinus, Rhagovelia evidis, Tenagobia peruana, Limnocoris burmeisteri, L. fittkaui fittkaui, Placomerus micans, and Martarega gonostyla), the Venezuelan State of Bolívar (Cylindrostethus palmaris, R. elegans, R. tenuipes, and Ambrysus stali), the Brazilian State of Bahia (Martarega bentoi), Peru (Euvelia lata), and the Peruvian Region of Arequipa (Microvelia pulchella).

  8. Ganancia de peso del depredador Podisus distinctus (Heteroptera: Pentatomidae en combinaciones de las presas Tenebrio molitor (Coleoptera: Tenebrionidae y Musca domestica (Diptera: Muscidae

    Directory of Open Access Journals (Sweden)

    Fausto da Costa Matos Neto

    2004-03-01

    Full Text Available Entre las ninfas de los asopíneos usados para el control de gusanos desfoliadores en plantaciones de eucalipto, Podisus distinctus (Stal (Heteroptera: Pentatomidae representa un potencial agente de control biológico, sin embargo esta especie ha sido poco estudiada. El presente trabajo evaluó el efecto de las diferentes combinaciones de las presas Musca domestica L. (Diptera: Muscidae y Tenebrio molitor L. (Coleoptera: Tenebrionidae sobre el peso de ninfas de P. distinctus. El experimento se realizó en laboratorio do "Instituto de Biotecnologia Aplicada à Agropecuaria (BIOAGRO", a 25 ± 0.5ºC, 60 ± 10% de humedad relativa y 14 horas de fotoperiodo. Las ninfas de P. distinctus fueron individualizadas en cajas de Petri y alimentadas de acuerdo con los siguientes tratamientos: T1- larvas de M. domestica durante toda la fase ninfal; T2- larvas de M. domestica en el II estadio y de T. molitor en los III, IV y V estadios; T3- larvas de M. domestica en el II y III estadios y de T. molitor en los IV y V estadios; T4- larvas de M. domestica en el II, III y IV estadios y de T. molitor en el V estadio; T5- larvas de T. molitor en todos los estadios. Los mejores resultados de peso y ganancia de peso fueron encontrados cuando P. distinctus fue alimentado alternadamente con larvas de M. domestica y T. molitor. Cuando esse depredador fue solamente alimentado con larvas de M. domestica, presentó pesos menoresLitlle is known about Podisus distinctus (Stal (Heteroptera: Pentatomidae one of the Asopinae species with good possibilities for mass rearing and releasing against defoliator caterpillars in eucalyptus reforested areas in Brazil. We evaluated the impact of prey combinations on weight of nymphs and adults of P. distinctus. The prey were Musca domestica L. (Diptera: Muscidae and Tenebrio molitor L. (Coleoptera: Tenebrionidae. The experiment was developed under 25 ± 0.5ºC, 60 ± 10% R.H. and photophase of 14 hr, with nymphs of P. distinctus

  9. Imidacloprid affects the functional response of predator Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) to strains of Spodoptera frugiperda (J.E. Smith) on Bt cotton.

    Science.gov (United States)

    Malaquias, J B; Ramalho, F S; Omoto, C; Godoy, W A C; Silveira, R F

    2014-03-01

    Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) is one of the most common asopine species in the neotropical region and its occurrence was reported in several countries of South and Central America, as an important biological control agent for many crops. This study was carried out to identify the imidacloprid impacts on the functional response of predator P. nigrispinus fed on Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) strain resistant to lambda-cyhalothrin, on Bt cotton expressing Cry1Ac (Bollgard(®)). Spodoptera frugiperda larvae were used in the following conditions: resistant (1) and susceptible (2) strains to lambda-cyhalothrin fed on Bollgard(®) cotton leaves (DP 404 BG); and resistant (3) and susceptible (4) strains to lambda-cyhalothrin fed on non-genetically modified cotton leaves (cultivar DP4049). The predatory behavior of P. nigrispinus was affected by imidacloprid and the type II asymptotic curve was the one that best described the functional response data. Handling time (T h ) of predator females did not differ among treatments in the presence of imidacloprid. The attack rate did decrease, however, due to an increase in the density of larvae offered. Regardless of the treatment (S. frugiperda strain or cotton cultivar), the predation of P. nigrispinus females on S. frugiperda larvae was significantly lower when exposed to imidacloprid, especially at a density of 16 larvae/predator. The predation behavior of P. nigrispinus on S. frugiperda larvae is affected by the insecticide imidacloprid showing that its applications should be used in cotton crop with caution.

  10. Inventory of the Heteroptera (Insecta: Hemiptera) in Komaba Campus of the University of Tokyo, a highly urbanized area in Japan

    Science.gov (United States)

    Saito, Masayuki U.; Kishimoto-Yamada, Keiko; Kato, Toshihide; Kurashima, Osamu; Ito, Motomi

    2015-01-01

    Abstract Background The Heteroptera, or true bugs, forms one of the major insect groups with respect to the very diverse habitat preferences, including both aquatic and terrestrial species, as well as a variety of feeding types. The first comprehensive inventory of the Heteroptera at Komaba Campus of the University of Tokyo, or an urban green space in the center of the Tokyo Metropolis, Japan, was conducted. New information A total of 115 species in 29 families of the suborder Heteroptera were identified. The area had a high species richness compared with other urbanized and suburbanized localities in Tokyo. The campus is found to show a substantial difference in heteropteran species compositions, despite being close to the other localities surrounded by highly urbanized zones in central Tokyo. PMID:25941455

  11. Comparative Analysis of Volatile Defensive Secretions of Three Species of Pyrrhocoridae (Insecta: Heteroptera by Gas Chromatography-Mass Spectrometric Method.

    Directory of Open Access Journals (Sweden)

    Jan Krajicek

    Full Text Available The true bugs (Hemiptera: Heteroptera have evolved a system of well-developed scent glands that produce diverse and frequently strongly odorous compounds that act mainly as chemical protection against predators. A new method of non-lethal sampling with subsequent separation using gas chromatography with mass spectrometric detection was proposed for analysis of these volatile defensive secretions. Separation was performed on Rtx-200 column containing fluorinated polysiloxane stationary phase. Various mechanical irritation methods (ultrasonics, shaking, pressing bugs with plunger of syringe were tested for secretion sampling with a special focus on non-lethal irritation. The preconcentration step was performed by sorption on solid phase microextraction (SPME fibers with different polarity. For optimization of sampling procedure, Pyrrhocoris apterus was selected. The entire multi-parameter optimization procedure of secretion sampling was performed using response surface methodology. The irritation of bugs by pressing them with a plunger of syringe was shown to be the most suitable. The developed method was applied to analysis of secretions produced by adult males and females of Pyrrhocoris apterus, Pyrrhocoris tibialis and Scantius aegyptius (all Heteroptera: Pyrrhocoridae. The chemical composition of secretion, particularly that of alcohols, aldehydes and esters, is species-specific in all three pyrrhocorid species studied. The sexual dimorphism in occurrence of particular compounds is largely limited to alcohols and suggests their epigamic intraspecific function. The phenetic overall similarities in composition of secretion do not reflect either relationship of species or similarities in antipredatory color pattern. The similarities of secretions may be linked with antipredatory strategies. The proposed method requires only a few individuals which remain alive after the procedure. Thus secretions of a number of species including even the rare

  12. Building-Up of a DNA Barcode Library for True Bugs (Insecta: Hemiptera: Heteroptera) of Germany Reveals Taxonomic Uncertainties and Surprises

    Science.gov (United States)

    Raupach, Michael J.; Hendrich, Lars; Küchler, Stefan M.; Deister, Fabian; Morinière, Jérome; Gossner, Martin M.

    2014-01-01

    During the last few years, DNA barcoding has become an efficient method for the identification of species. In the case of insects, most published DNA barcoding studies focus on species of the Ephemeroptera, Trichoptera, Hymenoptera and especially Lepidoptera. In this study we test the efficiency of DNA barcoding for true bugs (Hemiptera: Heteroptera), an ecological and economical highly important as well as morphologically diverse insect taxon. As part of our study we analyzed DNA barcodes for 1742 specimens of 457 species, comprising 39 families of the Heteroptera. We found low nucleotide distances with a minimum pairwise K2P distance 2.2% were detected for 16 traditionally recognized and valid species. With a successful identification rate of 91.5% (418 species) our study emphasizes the use of DNA barcodes for the identification of true bugs and represents an important step in building-up a comprehensive barcode library for true bugs in Germany and Central Europe as well. Our study also highlights the urgent necessity of taxonomic revisions for various taxa of the Heteroptera, with a special focus on various species of the Miridae. In this context we found evidence for on-going hybridization events within various taxonomically challenging genera (e.g. Nabis Latreille, 1802 (Nabidae), Lygus Hahn, 1833 (Miridae), Phytocoris Fallén, 1814 (Miridae)) as well as the putative existence of cryptic species (e.g. Aneurus avenius (Duffour, 1833) (Aradidae) or Orius niger (Wolff, 1811) (Anthocoridae)). PMID:25203616

  13. Susceptibilidad a endosulfan y monitoreo de resistencia en poblaciones de Piezodorus guildinii (Insecta, Heteroptera: Pentatomidae, en cultivos de soja de Argentina Susceptibility to endosulphan and resistance monitoring in «green stinkbug» populations, Piezodorus guildinii (Insecta, Heteroptera: Pentatomidae, in soya crops in Argentina

    Directory of Open Access Journals (Sweden)

    Teodoro Stadler

    2006-12-01

    Full Text Available Se determinó la susceptibilidad a endosulfan en diferentes poblaciones de P. guildinii (Westwood, que afectan los cultivos de soja en las provincias argentinas de Santiago del Estero, Chaco y Santa Fe. Se estableció su estatus de susceptibilidad actual para todas las poblaciones estudiadas, y se monitoreó la resistencia a endosulfan en una población de P. guildinii , de Santiago del Estero desde 2002 a 2005, para detectar los cambios en la respuesta al insecticida, con la finalidad de alertar acerca de posibles fallas de control. Los insectos fueron colectados en plantaciones de soja en las localidades de Oliveros, Reconquista, San Justo, Bandera y Coronel Du Graty. Los bioensayos se desarrollaron en laboratorio por el método del tópico, en el marco de los protocolos de la Organización Mundial de la Salud. El estatus de susceptibilidad actual a endosulfan, en las poblaciones de P. guildinii estudiadas fue de: DL95 = 0,680μg/μL [0,489-1,338] a 2,277μg/μL [1,526-5,418]. De los resultados de los bioensayos se desprende que las poblaciones estudiadas, muy distantes geográficamente unas de otras, muestran algunas diferencias en su tolerancia a endosulfan (capacidad de detoxificación, exhibiendo, además, un incremento gradual de la misma desde la zona sur de Sta. Fe (Oliveros hacia el norte (Bandera - Chaco, que probablemente se relaciona con los factores ambientales propios de cada región, y se pueden deber también a procesos toxicodínámicos o toxicocinéticos. La población de P. guildinii de Coronel Du Graty (Santiago del Estero monitoreada desde 2002 a 2005, no mostró un incremento de tolerancia al endosulfan a lo largo del tiempo, que sugiera la presencia de fenómenos de resistencia. Factores poblacionales y ambientales son corresponsables de las variaciones temporales y espaciales de la susceptibilidad de una población a un biocida, esto hace que los límites entre la plasticidad fenotípica y las diferencias en la susceptibilidad a xenobióticos con base genética, resulten difusos. Dentro del área de cultivo de la soja en la Argentina , que abarca regiones con importantes diferencias climáticas y florísticas, la plasticidad fenotípica que muestran diferentes poblaciones de P. guildinii , no debe ser omitida, distinguiendo los cambios de susceptibilidad a insecticidas relacionados con la plasticidad, de aquellos de origen genético. Comprender los mecanismos responsables de cambios en la susceptibilidad a xenobióticos, permitirá discernir entre los efectos de la plasticidad fenotípica y de los cambios genéticos, esto llevará a seleccionar las medidas adecuadas para el control de poblaciones de insectos plaga. La información acerca del estatus actual de susceptibilidad a endosulfan, obtenida a través del presente estudio, resultará de utilidad para el monitoreo de resistencia así como para el diagnóstico de fallas en el control de esta plaga.The susceptibility status to endosulphan of different populations of P. guildinii (Westwood that affect soybean crops in the Argentinean provinces of Santiago del Estero, Chaco and Santa Fe was determined. Also, to detect possible changes in P. guildinii response to the insecticide, resistance was monitored in a population of P. guildinii from Santiago del Estero from 2002 to 2005. Insects were collected from soybean fields in five localities, Oliveros, Reconquista, San Justo, Bandera and Coronel Du Graty. Topical bioassays were conducted in the laboratory, in the framework of standard World Health Organization test methods. The status of the susceptibility of the P. guildinii populations was: DL95 = 0,680μg/μL [0,489- 1,338] to 2,277μg/μL [1,526-5,418]. The results obtained suggest that the populations studied, which are geographically distant, show differences in their tolerance to endosulphan (detoxifying capabilities that could be related to environmental factors and linked to any toxicocinetic or toxicodynamic processes. P. guildini populations studied show a trend towards increased tolerance to endosulphan from southern Santa Fe (Oliveros to northern populations from Bandera (Chaco that is probably related to environmental factors characteristic of each region. The population of P. guildinii monitored from 2002 to 2005 did not show an increase in tolerance to endosulphan with time. Population and environmental factors are both responsible for the temporal and spatial variations of susceptibility of a population to a biocide, making it hard to distinguish between phenotypic plasticity and susceptibility changes with a genetic basis. The soybean growing area in Argentina occupies a region with a huge range of climatic conditions and flora. In such a varied environment, phenotypic plasticity expressed by different P. guildinii should not be omitted, and should be differentiated from changes in susceptibility caused by genetic differences. Understanding the underlying mechanisms responsible for changes in susceptibility to pesticides, will allow us to distinguish between the effects of phenotypic plasticity and genetic changes and in turn this will aid in the selection of the appropriate measures for insect pest control. The susceptibility data on endosulphan obtained in this study will be useful for insecticide resistance monitoring and control failure diagnosis.

  14. Evolutionary trends in Heteroptera

    NARCIS (Netherlands)

    Cobben, R.H.

    1968-01-01

    1. This work, the first volume of a series dealing with evolutionary trends in Heteroptera, is concerned with the egg system of about 400 species. The data are presented systematically in chapters 1 and 2 with a critical review of the literature after each family.

    2. Chapter 3 evaluates facts

  15. Reproduction and longevity of Supputius cincticeps (Het.: Pentatomidae) fed with larvae of Zophobas confusa, Tenebrio molitor (Col.: Tenebrionidae) or Musca domestica (Dip.: Muscidae)

    OpenAIRE

    Zanuncio,José Cola; Beserra,Eduardo Barbosa; Molina-Rugama,Adrián José; Zanuncio,Teresinha Vinha; Pinon,Tobias Baruc Moreira; Maffia,Vanessa Pataro

    2005-01-01

    Reproduction and longevity of Supputius cincticeps (Stål) (Heteroptera: Pentatomidae) fed on Zophobas confusa Gebien, Tenebrio molitor L. (Coleoptera: Tenebrionidae) or Musca domestica (L.) (Diptera: Muscidae) larvae were studied during two generations at 24.7 ± 1.1ºC, 70 ± 10% R.H. and 12 h of photophase. Body weight of newly-emerged adults, oviposition period, number of egg masses, total number of eggs and longevity of S. cincticeps were higher when fed on Z. confusa or T. mol...

  16. Reproduction and longevity of Supputius cincticeps (Het.: Pentatomidae fed with larvae of Zophobas confusa, Tenebrio molitor (Col.: Tenebrionidae or Musca domestica (Dip.: Muscidae

    Directory of Open Access Journals (Sweden)

    José Cola Zanuncio

    2005-09-01

    Full Text Available Reproduction and longevity of Supputius cincticeps (Stål (Heteroptera: Pentatomidae fed on Zophobas confusa Gebien, Tenebrio molitor L. (Coleoptera: Tenebrionidae or Musca domestica (L. (Diptera: Muscidae larvae were studied during two generations at 24.7 ± 1.1ºC, 70 ± 10% R.H. and 12 h of photophase. Body weight of newly-emerged adults, oviposition period, number of egg masses, total number of eggs and longevity of S. cincticeps were higher when fed on Z. confusa or T. molitor larvae than on M. domestica larvae. Regardless of diet, S. cincticeps showed better reproduction and longevity in the second generation in laboratory conditions.Foram avaliadas, em duas gerações, a reprodução e a longevidade de Supputius cincticeps (Stål (Heteroptera: Pentatomidae alimentado com larvas de Zophobas confusa Gebien, Tenebrio molitor L. (Coleoptera: Tenebrionidae ou Musca domestica (L. (Diptera: Muscidae a 24,7 ± 1,1ºC, 70 ± 10% de U.R. e fotofase de 12 h. O peso de adultos recém emergidos, o período de oviposição, o número de posturas, de ovos totais e a longevidade de fêmeas de S. cincticeps foram maiores com larvas de Z. confusa ou T. molitor que com M. domestica. Independentemente do tipo de presa, S. cincticeps mostrou melhor performance reprodutiva e longevidade na segunda geração.

  17. Phytophagy of the predator Podisus nigrispinus (Dallas, 1851 (Hemiptera: Pentatomidae fed on prey and Brassicaceae

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    J. F. J. Grigolli

    2017-03-01

    Full Text Available Abstract The purpose of this study was to investigate the development and reproduction of the zoophytophagous predator Podisus nigrispinus (Dallas (Heteroptera: Pentatomidae fed kale, broccoli and cabbage affects its. Nymphs and adults of this predator were fed on larvae of Plutella xylostella (L. (Lepidoptera: Plutellidae as prey with kale, cabbage, or broccoli. In the nymph period, the duration and prey consumption were similar with all the Brassicacea cultivar. However, nymph viability was higher for predators with broccoli leaves. The mean weight of 5th-instar nymphs, newly emerged females and the sex ratio were similar among the Brassicacea cultivars, while newly emerged males were heavier with kale and broccoli leaves. The supply of broccoli leaves resulted in greater oviposition, higher number of eggs per egg mass and longer longevity of P. nigrispinus males and females. Furthermore, the consumption of P. xylostella larvae by adult predators was higher with these cultivars. The net reproductive rate (R0 and mean generation time (T were highest for predators with prey and broccoli leaves. The reproductive parameters of P. nigrispinus were enhanced when fed on P. xylostella larvae with and broccoli leaves, which can be an alternative diet in laboratory rearing of this predator.

  18. Effect of diet on male reproductive tract of Podisus nigrispinus (Dallas (Heteroptera: Pentatomidae

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    W. P Lemos

    Full Text Available The morphology and histology of the reproductive tract of males of the predator Podisus nigrispinus (Dallas fed on different diets were studied. P. nigrispinus was fed on diets of: larvae of Alabama argillacea (Hübner, Tenebrio molitor L., Musca domestica L., and an artificial diet. The male reproductive tract, independent of diet, showed testes with intense red coloration in a compact, circular, or slightly oval structure. The vasa deferentia were similar in color to the testes and formed long filaments, which joined with the yellow-cream colored ejaculatory duct. The morphological characteristics of the male reproductive tract were similar under all diets, except for the artificial one. The histological studies demonstrated that independent of the diet the testes of P. nigrispinus were composed of four to six follicles. The testes with six follicles generally had four developed and two atrophied follicles. The morphological and histological differences of the testes of P. nigrispinus when fed with different prey are presented and discussed.

  19. Uptake of dietary selenium by laboratory and field feeding Podisus maculiventris (Heteroptera: Pentatomidae)

    Science.gov (United States)

    Podisus maculiventris (Say) is a generalist pentatomid predator commercially available for augmentative biological control of pest insects in a variety of crop and orchard systems. P. maculiventris is exposed to a wide variety of micronutrients based upon the soil type, plant, and insect prey items...

  20. Comparison of susceptibility of pest Euschistus servus and predator Podisus maculiventris (Heteroptera: Pentatomidae) to selected insecticides.

    Science.gov (United States)

    Tillman, P Glynn; Mullinix, Benjamin G

    2004-06-01

    Susceptibility of the brown stink bug, Euschistus serous (Say), and the spined soldier bug, Podisus maculiventris (Say), to acetamiprid, cyfluthrin, dicrotophos, indoxacarb, oxamyl, and thiamethoxam, was compared in residual and oral toxicity tests. Generally, susceptibility of P. maculiventris to insecticides was significantly greater than or not significantly different from that of E. servus. Cyfluthrin and oxamyl were more toxic to the predator than to E. servus in residual and feeding tests, respectively. Dicrotophos is the only compound that exhibited both good residual and oral activity against E. servus, but even this toxicant was more toxic to the predator than to the pest in oral toxicity tests. Feeding on indoxacarb-treated food caused high mortality for both nymphs and adults of P. maculiventris. In contrast, E. servus was unaffected by feeding on food treated with this compound. Insecticide selectivity to P. maculiventris was detected only with acetamiprid for adults in residual toxicity tests and for nymphs in oral toxicity tests. Because insecticide selectivity to P. maculiventris was limited, it is extremely important to conserve P. maculiventris in cotton fields by applying these insecticides for control of brown stink bugs only when the pest reaches economic threshold.

  1. Age-related and Individual Variation in Male Piezodorus hybneri (Heteroptera: Pentatomidae Pheromones

    Directory of Open Access Journals (Sweden)

    Nobuyuki Endo

    2012-01-01

    Full Text Available Males of the Piezodorus hybneri stink bug produce a pheromone comprising β-sesquiphellandrene (Sesq, (R-15-hexadecanolide (R15, and methyl (Z-8-hexadecenoate (Z8. We collected airborne volatiles from individual P. hybneri males and analyzed them by GC-MS. Daily analysis from 1 to 16 days after adult emergence showed that pheromone emission started around 3 to 6 days after adult emergence and peaked (~1 μg/male/day on day 11. The proportion of Sesq tended to increase with age to about 80% on days 12 to 16. On the other hand, the proportion of R15 tended to decrease with age. The proportion of Z8 reached a maximum of about 34% on day 9 but otherwise remained below 20%. The total amount of pheromone emitted by individual males varied considerably: three males emitted more than 10 μg, whereas another three males emitted little or no pheromone and failed to survive by the end of the experiment. These results suggest that the amount of P. hybneri pheromone and its blend ratio could be affected by the male’s physical conditions, such as vitality and age.

  2. Case Study: Trap Crop with Pheromone Traps for Suppressing Euschistus servus (Heteroptera: Pentatomidae in Cotton

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    P. G. Tillman

    2012-01-01

    Full Text Available The brown stink bug, Euschistus servus (Say, can disperse from source habitats, including corn, Zea mays L., and peanut, Arachis hypogaea L., into cotton, Gossypium hirsutum L. Therefore, a 2-year on-farm experiment was conducted to determine the effectiveness of a sorghum (Sorghum bicolor (L. Moench spp. bicolor trap crop, with or without Euschistus spp. pheromone traps, to suppress dispersal of this pest to cotton. In 2004, density of E. servus was lower in cotton fields with sorghum trap crops (with or without pheromone traps compared to control cotton fields. Similarly, in 2006, density of E. servus was lower in cotton fields with sorghum trap crops and pheromone traps compared to control cotton fields. Thus, the combination of the sorghum trap crop and pheromone traps effectively suppressed dispersal of E. servus into cotton. Inclusion of pheromone traps with trap crops potentially offers additional benefits, including: (1 reducing the density of E. servus adults in a trap crop, especially females, to possibly decrease the local population over time and reduce the overwintering population, (2 reducing dispersal of E. servus adults from the trap crop into cotton, and (3 potentially attracting more dispersing E. servus adults into a trap crop during a period of time when preferred food is not prevalent in the landscape.

  3. Effects of 5-Gy irradiation on fertility and mating behaviour of Nezara viridula (Heteroptera: Pentatomidae)

    International Nuclear Information System (INIS)

    Zunic, A.; Cokl, A.; Sersa, G.

    2002-01-01

    Background. The polyphagous and cosmopolitan species Nezara viridula is one of the most important insect pests. The sterile insect technique (SIT) is a pest control strategy that involves sterilising males by exposing them to ionising radiation. Sterile males, released into wild population, mate with females, but eggs are not fertilised and the population gradually declines. Exposing insects to radiation during their growth stage might require lower sterilising dose. The aim of our study was to test whether 5-Gy irradiation of 5 th instar nymphs significantly affects: (1) moulting and further development of the irradiated nymphs, (2) the male's and female's reproductive system and (3) the mating competitiveness of treated males, with special focus on vibrational communication. Methods: The 5 th instar nymphs were irradiated with 5 Gy using X-ray generator and monitored daily. Results: The observed effects of irradiation were: prolonged moulting, increased mortality during development and during the first day of adult life, decreased males to females ratio, decreased fecundity, egg production, proportion of fertile eggs and progeny survival. The reaction of a male to stimulation with the model female calling song was tested. The irradiated and non-irradiated males responded to stimulation with emission of the courtship song (MCrS). Temporal parameters of MCrS emitted by non-irradiated males differed when compared with those of irradiated ones. Conclusions: The 5-Gy irradiation of 5 th instar nymphs did not affect mating behaviour. However since the irradiation during growth stage decreased the fertility and fecundity of emerged adults, this technique, in combination with certain other suppression techniques, could be a successful control strategy for management of Nezara viridula. On the other hand observed effects on moulting and further development of the irradiated nymphs could decrease the efficiency and application of this strategy. (author)

  4. Development of a dry artificial diet for Nezara viridula (L.) and Euschistus heros (Fabricius) (Heteroptera: Pentatomidae)

    International Nuclear Information System (INIS)

    Fortes, Priscila; Parra, Jose R.P.; Panizzi, Antonio R.

    2006-01-01

    Artificial diets prepared with wheat germ, soybean protein, dextrosol, potato starch, sucrose, cellulose, soybean or sunflower oil, and vitamin solution for rearing Nezara viridula (L.) and Euschistus heros (Fabricius) were tested under controlled temperature (25 ± 1 deg C), RH (60 ± 10%), and photophase (14h). Three diets were tested and compared with the natural diet privet [soybean and peanut seeds and privet Ligustrum lucidum Ait. fruit (Oleaceae)]. All three artificial diets allowed full development. The diet containing sunflower oil was the most suitable for N. viridula while E. heros developed better on a diet composed of soybean oil. Data indicated that the artificial diets were inferior to the natural diet. The artificial diets were more adequate for E. heros. (author)

  5. Pentatomiana beckerae gen. nov. and sp. nov., a new Neotropical Pentatomini (Hemiptera, Heteroptera, Pentatomidae

    Directory of Open Access Journals (Sweden)

    Jocélia Grazia

    2004-06-01

    Full Text Available A new genus, Pentatomiana, and a new species, P. beckerae, are described, based on specimens from Rio de Janeiro and Santa Catarina States, Brazil. Brachyptery is present in the males of the new species. Pentatomiana gen. nov. is compared with Lojus McDonald, 1982, which also presents brachyptery in one of the species, but in females. Illustrations of male and female external genitalia are provided.Um novo gênero, Pentatomiana, e uma nova espécie, P. beckerae, são descritos, com base em espécimes do Rio de Janeiro e de Santa Catarina, Brasil. Machos da nova espécie apresentam braquipteria. Pentatomiana gen. nov. é comparado com Lojus McDonald, 1982, o qual também apresenta braquipteria em uma das espécies, mas em fêmeas. São fornecidas ilustrações da genitália externa masculina e feminina.

  6. Development of a dry artificial diet for Nezara viridula (L.) and Euschistus heros (Fabricius) (Heteroptera: Pentatomidae)

    Energy Technology Data Exchange (ETDEWEB)

    Fortes, Priscila; Parra, Jose R.P. [Universidade de Sao Paulo (USP), Piracicaba, SP (Brazil). Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Dept. Entomologia, Fitopatologia e Zoologia Agricola; Magro, Sandra R. [Faculdade Integrada de Campo Mourao, PR (Brazil); Panizzi, Antonio R. [EMBRAPA, Londrina, PR (Brazil). Centro Nacional de Pesquisa de Soja

    2006-09-15

    Artificial diets prepared with wheat germ, soybean protein, dextrosol, potato starch, sucrose, cellulose, soybean or sunflower oil, and vitamin solution for rearing Nezara viridula (L.) and Euschistus heros (Fabricius) were tested under controlled temperature (25 {+-} 1 deg C), RH (60 {+-} 10%), and photophase (14h). Three diets were tested and compared with the natural diet privet [soybean and peanut seeds and privet Ligustrum lucidum Ait. fruit (Oleaceae)]. All three artificial diets allowed full development. The diet containing sunflower oil was the most suitable for N. viridula while E. heros developed better on a diet composed of soybean oil. Data indicated that the artificial diets were inferior to the natural diet. The artificial diets were more adequate for E. heros. (author)

  7. Phytophagy on eucalyptus plants increases the development and reproduction of the predator Podisus nigrispinus (Hemiptera: Pentatomidae = Fitofagia em plantas de eucaliptos aumenta o desenvolvimento e a reprodução do predador Podisus nigrispinus (Hemiptera: Pentatomidae.

    Directory of Open Access Journals (Sweden)

    Anderson Mathias Holtz

    2011-04-01

    Full Text Available The effect of plant feeding on biological aspects of Podisus nigrispinus (Dallas (Heteroptera: Pentatomidae was evaluated. Nymphs and adults of this predator were fed with Tenebrio molitor L. (Coleoptera: Tenebrionidae pupae on Eucalyptus urophylla plants inthe field or only with pupae of this prey in the laboratory. The development and nymphal survival, as well as the pre-oviposition period, number of egg masses, number, fertility and viability of eggs and the longevity of females of this predator were evaluated. The eucalyptus plants improved the development of P. nigrispinus. This demonstrates that this predator can present higher population growth with eucalyptus plants and T. molitor pupae than in the laboratory (controlled conditions only with this prey. These plants can supply nutrients that can the population growth and efficiency of P. nigrispinus for biological control in eucalyptus plantations.O efeito da alimentação em plantas sobre os aspectos biológicos de Podisus nigrispinus (Hemiptera: Pentatomidae foi avaliado. Ninfas e adultos desse predador foram alimentados com pupas de Tenebrio molitor L. (Coleotpera: Tenebrionidae em plantas de Eucalyptus urophylla no campo ou, apenas, em laboratório. O desenvolvimento e a sobrevivência ninfal desse predador, além do período de pré-oviposição, número de posturas, viabilidade dos ovos e afertilidade e longevidade de fêmeas foram avaliados. A planta de eucalipto proporcionou um incremento no desenvolvimento de P. nigrispinus. Isto demonstra que esse predador pode apresentar maior crescimento populacional com plantas de eucalipto e pupas de T. molitor alimentado com apenas a presa (condições controladas. A planta pode fornecer nutrientes que aumentam o crescimento populacional e a eficiência de P. nigrispinus para o controle biológico em plantios de eucalipto.

  8. Taxonomic and numerical resolutions of nepomorpha (insecta: heteroptera in cerrado streams.

    Directory of Open Access Journals (Sweden)

    Nubia França da Silva Giehl

    Full Text Available Transformations of natural landscapes and their biodiversity have become increasingly dramatic and intense, creating a demand for rapid and inexpensive methods to assess and monitor ecosystems, especially the most vulnerable ones, such as aquatic systems. The speed with which surveys can collect, identify, and describe ecological patterns is much slower than that of the loss of biodiversity. Thus, there is a tendency for higher-level taxonomic identification to be used, a practice that is justified by factors such as the cost-benefit ratio, and the lack of taxonomists and reliable information on species distributions and diversity. However, most of these studies do not evaluate the degree of representativeness obtained by different taxonomic resolutions. Given this demand, the present study aims to investigate the congruence between species-level and genus-level data for the infraorder Nepomorpha, based on taxonomic and numerical resolutions. We collected specimens of aquatic Nepomorpha from five streams of first to fourth order of magnitude in the Pindaíba River Basin in the Cerrado of the state of Mato Grosso, Brazil, totaling 20 sites. A principal coordinates analysis (PCoA applied to the data indicated that species-level and genus-level abundances were relatively similar (>80% similarity, although this similarity was reduced when compared with the presence/absence of genera (R = 0.77. The presence/absence ordinations of species and genera were similar to those recorded for their abundances (R = 0.95 and R = 0.74, respectively. The results indicate that analyses at the genus level may be used instead of species, given a loss of information of 11 to 19%, although congruence is higher when using abundance data instead of presence/absence. This analysis confirms that the use of the genus level data is a safe shortcut for environmental monitoring studies, although this approach must be treated with caution when the objectives include conservation actions, and faunal complementarity and/or inventories.

  9. Phylogeny and character evolution in the bee-assassins (Insecta: Heteroptera: Reduviidae).

    Science.gov (United States)

    Forero, D; Berniker, L; Weirauch, C

    2013-01-01

    Apiomerus, the charismatic bee-assassins (>108 spp.), belong to the New World resin bugs in the harpactorine tribe Apiomerini (12 extant genera) that is characterized by a novel predation strategy, resin trap predation. Apiomerini also exhibit striking genitalic diversity that has shaped subgeneric classifications within the genus Apiomerus and females of some species of Apiomerus are known to engage in unique maternal care behaviors. The lack of a phylogenetic framework currently hinders evolutionary interpretations of genitalic morphology and maternal care. We here present a molecular phylogeny based on 4, 477 bp of six ribosomal and protein coding genes and 95 terminal taxa using parsimony and maximum likelihood approaches as a way of addressing these shortcomings. Apiomerini are monophyletic, with Heniartes being the sistergroup to all remaining taxa that form the monophyletic Manicocoris (Calliclopius, Manicocoris, Micrauchenus, and Ponerobia) and Apiomerus (Agriocoris, Apiomerus, and Sphodrolestes) clades. Previously proposed subgeneric groups are polyphyletic, but several proposed species groups are recovered as monophyletic. Ancestral state reconstruction of the metatibial comb indicates that this structure evolved in the ancestor of all Apiomerini where it was present in males and in females; it became strongly sexually dimorphic (better developed in females than in males) in the Apiomerus clade (Apiomerus + Agriocoris + Sphodrolestes). Genitalic features reveal a pattern of homoplasy, but frequently are nonetheless useful to diagnose supraspecific groups within Apiomerus. The complex genitalia found within Apiomerus are derived for that clade. We conclude that, using the metatibial comb as a proxy, maternal care is relatively common in the tribe Apiomerini and propose that it likely evolved at the base of the Apiomerus clade if not at the base of Apiomerini. Copyright © 2012 Elsevier Inc. All rights reserved.

  10. Phylogenetic relationships of trypanosomatids parasitising true bugs (Insecta: Heteroptera) in sub-Saharan Africa

    Czech Academy of Sciences Publication Activity Database

    Votýpka, Jan; Klepetková, H.; Jirků, Milan; Kment, P.; Lukeš, Julius

    2012-01-01

    Roč. 42, č. 5 (2012), s. 489-500 ISSN 0020-7519 R&D Projects: GA ČR GD206/09/H026 Institutional research plan: CEZ:AV0Z60220518 Keywords : Trypanosomatids * Phylogeny * Diversity * Insects Subject RIV: EB - Genetics ; Molecular Biology Impact factor: 3.637, year: 2012

  11. Detrimental effects of species of Tenthredinidae (Insecta ...

    African Journals Online (AJOL)

    PRECIOUS

    2009-11-16

    Nov 16, 2009 ... (Insecta: Hymenoptera) on plants and control methods. Ayla Tuzun* and Elif Sakaltaş ... today and have important roles for ecosystem balance and continuation of the food ... of the shoot and fruit, to fall fruits early. By this time,.

  12. Desenvolvimento de Podisus nigrispinus (Dallas (Heteroptera, Pentatomidae com Zophobas confusa Gebien (Coleoptera, Tenebrionidae comparado à duas outras presas alternativas Development of Podisus nigrispinus (Dallas (Heteroptera, Pentatomidae fed with Zophobas confusa Gebien (Coleoptera, Tenebrionidae compared with two another alternative preys

    Directory of Open Access Journals (Sweden)

    Teresinha V Zanuncio

    1996-01-01

    Full Text Available Nymphs of Podisus nigrispinus (Dallas, 1851 were fed with Zophobas confusa Gebien, 1906, Tenebrio molitor Linnaeus, 1758 (Coleoptera, Tenebrionidae and Musca domestica Linnaeus, 1758 (Diptera, Muscidae under 25±0.5ºC, 60±10% of RH and photophase of 12h. Nymphal viability of P. nigrispinus were 64.0%, 80.0% and 92.0% with Z. confusa, M. domestica and T. molitor, respectively. No differences were found for pre-oviposition period, number of egg masses, number of eggs, egg viability, and longevity for females of this predator fed with any of these preys.

  13. Revisão e análise cladística de Serdia Stål (Heteroptera, Pentatomidae, Pentatomini Review and cladistic analysis of Serdia Stål (Heteroptera, Pentatomidae, Pentatomini

    Directory of Open Access Journals (Sweden)

    Nora Denise Fortes de Fortes

    2005-09-01

    Full Text Available Treze espécies são hoje incluídas no gênero: S. apicicornis, Stål, 1860; S. beckerae Thomas & Rolston, 1985; S. calligera Stål, 1860; S. concolor Ruckes, 1958; S. costalis Ruckes, 1958; S. delphis Thomas & Rolston, 1985; S. inspersipes Stål, 1860; S. lobata Thomas & Rolston, 1985; S. rotundicornis Becker, 1967 e S. ruckesi Thomas & Rolston, 1985. Cinco novas espécies são descritas: S. indistincta sp. nov (Irai, Rio Grande do Sul, S. bicolor sp. nov (Ponta Grossa, Paraná, S. maculata sp. nov (Itatiaia, Rio de Janeiro, S. máxima sp. nov (Imbituba, Santa Catarina e S. robusta sp. nov (Itatiaia, Rio de Janeiro do Brasil. A análise cladística foi realizada usando 40 caracteres e 21 táxons. O gênero Tibilis Stål, 1860; Neotibilis Grazia & Barcellos, 1994 e Similliserdia Fortes & Grazia, 1998 foram usados como grupo-externo. A monofilia de Serdia foi sustentada por 3 sinapomorfias: ápice do escutelo com margens enegrecidas, machos com a parede da taça genital espessada com processos em aba, fêmeas com o espessamento da íntima vaginal situado na metade posterior das gonapófises 9 e projetando-se ventralmente. O subgênero Brasiliicola Kirkaldy, 1909 é considerado sinônimo junior de Serdia. São fornecidas ilustrações, mapas de distribuição geográfica e chave para as espécies.Thirteen species are presently included in the genus: S. apicicornis Stål, 1860; S. beckerae Thomas & Rolston, 1985; S. bihamulata, Thomas & Rolston, 1985; S. calligera Stål, 1860; S. concolor Ruckes, 1958; S. costalis Ruckes, 1958; S. delphis Thomas & Rolston, 1985; S. inspersipes Stål, 1860; S. limbatipennis Stål, 1860; S. lobata Thomas & Rolston, 1985; S. quadridens Thomas & Rolston, 1985; S. rotundicornis Becker, 1967, and S. ruckesi Thomas & Rolston, 1985. Five new species are described: S.indistincta sp. nov. (Iraí; Rio Grande do Sul, S. bicolor sp. nov. (Ponta Grossa; Paraná S. maculata sp. nov. (Itatiaia; Rio de Janeiro S. maxima sp. nov. (Imbituba; Santa Catarina and S. robusta sp. nov. (Itatiaia; Rio de Janeiro from Brazil. A cladistic analysis was performed using 40 characters and 21 taxa. The genera Tibilis Stål, 1860; Neotibilis Grazia & Barcellos, 1994 and Similliserdia Fortes & Grazia, 1998 were used as outgroups. The monophyly of Serdia is supported by three synapomorphies: scutellum apex with darkned margins; males with the inner wall of genital cup thicker and with brim-shaped processes; females with the thickennings of the vaginal intima arising at posterior half of gonapophyses 9, and projected ventrad. The subgenus Brasiliicola Kirkaldy, 1909 is considered junior synonym of Serdia. Illustrations, a map of geographical distribution and a key for the species are also provided.

  14. Podisus distinctus (Heteroptera: Pentatomidae) females are lighter feeding on Tenebrio molitor (Coleoptera: Tenebrionidae) pupae subjected to ventral nerve cord transection

    Science.gov (United States)

    The movement observed in the Tenebrio molitor L., 1758 (Coleoptera: Tenebrionidae) pupae can be a type of defense strategy. This makes it significant to study the development and reproduction of the predatory stinkbugs Asopinae with the immobilized pupae of this prey. The aim was to evaluate the per...

  15. Nutritional Value of Pupae Versus Larvae of Tenebrio molitor (Coleoptera: Tenebrionidae) as Food for Rearing Podisus maculiventris (Heteroptera: Pentatomidae).

    Science.gov (United States)

    Morales-Ramos, Juan A; Rojas, M Guadalupe; Shelby, Kent S; Coudron, Thomas A

    2016-04-01

    Life-table analysis yielded demographic parameter values that indicate that Tenebrio molitor (L.) pupae are potentially more suitable factitious prey to mass-produce the predator Podisus maculiventris (Say) and are more suitable prey than the larvae. P. maculiventris developed faster (23.2 vs. 25.5 d), weighed more (females 80.9 vs. 66.6 mg and males 64.7 vs. 53.7 mg), and had a higher survival rate (0.88 vs. 0.7), fecundity, and reproductive output (87.1 vs. 22.8 eggs/female) when reared on pupae compared with larvae of T. molitor. The total protein content and soluble protein content were significantly higher in pupae (60.2 and 23%, respectively) than larvae (53.1 and 14.4%, respectively). Lipid content was significantly lower in pupae (32.1%) than larvae (35.9%), and larvae had more polyunsaturated fatty acids (83.6 vs. 56.6 mg/g) and less oleic (0.1 mg/g) and steric (6.1 mg/g) acids than pupae (37.3 and 12.3 mg/g, respectively). The total sugar content was not significantly different between pupae and larvae. However, larvae had significantly more fructose than pupae, but pupae had more galactose, glucosamine, glucose, mannose, and trehalose than larvae. Differences in nutritional composition and its impact on predator demographic parameters are potential factors that make the pupal stage a better food source.

  16. Development of Supputius cincticeps (Heteroptera, Pentatomidae) fed with Zophobas confusa, Tenebrio molitor (Coleoptera, Tenebrionidae) and Musca domestica (Diptera, Muscidae) larvae

    OpenAIRE

    Beserra, Eduardo B.; Zanuncio, Teresinha V.; Zanuncio, José C.; Santos, Germi P.

    1995-01-01

    Egg viability and nymphal development of the predatory bug Supputius cincticeps (Stål, 1860) were evaluated during two generations in the Biological Control Laboratory of the Núcleo de Biotecnologia Aplicada à Agropecuária (Bioagro/UFV) in Viçosa (Minas Gerais, Brazil) at 24.72±1.10ºC and photophase of 12 hours. Three treatments were represented by S. cincticeps fed with Zophobas confusa Gebien, 1906, Tenebrio molitor Linnaeus, 1758 and Musca domestica Linnaeus, 1758 larvae. Higher egg viabil...

  17. Morphology of female reproductive tract of the predator Podisus nigrispinus (Dallas (Heteroptera: Pentatomidae fed on different diets

    Directory of Open Access Journals (Sweden)

    Walkymário de Paulo Lemos

    2005-01-01

    Full Text Available The morphology of the reproductive tract of Podisus nigrispinus (Dallas females fed with Alabama argillacea (Hübner larvae, artificial diet, Tenebrio molitor L. larvae or Musca domestica L. larvae were studied. The reproductive tract of females of this species presented yellow coloration and independent of the diet, each ovary had seven ovarioles joined through terminal filaments and forming a bunch shape structure. The histological data revealed that the ovary of P. nigrispinus was of meroistic telotrophic type, with each individual ovariole divided in a terminal filament, a tropharium (trophic chamber, a vitellarium, and a pedicel. The prey type affected the development and morphometry of these structures. Females of P. nigrispinus fed with 3rd or 5th instar larvae of cotton leafworm (A. argillacea presented developed ovaries with ovarioles showing a great number of oocytes in advanced stages of development. Females fed with artificial diet presented atrophic ovaries and ovarioles practically without oocytes. Females fed with T. molitor or M. domestica showed ovaries in intermediary stage of development. The central ovariole was longer in females fed with 5th instar larvae of cotton leafworm and shorter in those fed with artificial diet. Most developed oocytes were observed in ovaries of females fed with 5th or 3rd instar larvae of cotton leafworm, and the majority of atrophic oocytes were found in females fed with artificial diet.Este estudo apresenta a morfologia do sistema reprodutor feminino de Podisus nigrispinus (Dallas alimentado com larvas de Alabama argillacea (Hübner, Musca domestica L. e de Tenebrio molitor L. ou dieta artificial. As gônadas internas desse predador apresentaram coloração amarelada e, independente da dieta, cada ovário apresentou sete ovaríolos unidos pelos filamentos terminais em uma estrutura em forma de cacho. A análise histológica revelou que o ovário de P. nigrispinus é do tipo meroístico telotrófico com cada ovaríolo dividido morfologicamente em filamento terminal, trofário (câmara nutridora, vitelário e pedicelo. A dieta recebida por esse predador alterou o desenvolvimento e a morfometria de seus ovários. Fêmeas de P. nigrispinus alimentadas com larvas de terceiro ou quinto estádio de A. argillacea apresentaram ovários desenvolvidos com grande número de ovócitos em estágio avançado de desenvolvimento nos ovaríolos. Fêmeas com dieta artificial apresentaram ovários atrofiados e ovaríolos, praticamente, sem ovócitos em seu interior enquanto aquelas alimentadas com larvas de T. molitor ou M. domestica tiveram ovários em estágios intermediários de desenvolvimento. O comprimento do ovaríolo central foi maior em fêmeas alimentadas com larvas de quinto estádio de A. argillacea e menor naquelas com dieta artificial. Ovócitos em estágios mais avançados de desenvolvimento foram observados para fêmeas alimentadas com larvas de terceiro ou quinto estádios de A. argillacea, enquanto ovócitos atrofiados foram observados para aquelas com dieta artificial.

  18. Morphology of female reproductive tract of the predator Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) fed on different diets

    OpenAIRE

    Lemos,Walkymário de Paulo; Ramalho,Francisco de Souza; Serrão,José Eduardo; Zanuncio,José Cola

    2005-01-01

    The morphology of the reproductive tract of Podisus nigrispinus (Dallas) females fed with Alabama argillacea (Hübner) larvae, artificial diet, Tenebrio molitor L. larvae or Musca domestica L. larvae were studied. The reproductive tract of females of this species presented yellow coloration and independent of the diet, each ovary had seven ovarioles joined through terminal filaments and forming a bunch shape structure. The histological data revealed that the ovary of P. nigrispinus was of mero...

  19. Insecticide susceptibility of Nezara viridula (Heteroptera: Pentatomidae) and three other stink bug species composing a soybean pest complex in Japan.

    Science.gov (United States)

    Takeuchi, Hiroaki; Endo, Nobuyuki

    2012-06-01

    The susceptibility of the stink bug species Nezara viridula (L.), Nezara antennata Scott, Piezodorus hybneri (Gmelin), and Riptortus pedestris (F.) to insecticides was tested, establishing their 50% lethal dose (LD50) values as baseline data. Third instars and adults of the four species were treated by topical application with seven insecticides: fenitrothion, fenthion, etofenprox, silafluofen, dinotefuran, clothianidin, and ethiprole. The weight of the stink bug and weight of the insecticide applied to each bug were used as explanatory variables in the probit regression analysis. The effect of the body weight on the dose-response relationship, the proportional model, was not uniform among the tested insecticide-stink bug combinations. However, the basic model fit all combinations and could estimate LD50 values successfully. Therefore, LD50 values at the medium (average) weight estimated by the basic model were selected to describe the susceptibility of the stink bugs. The LD50 value of silafluofen for N. viridula adults, and that of silafluofen and etofenprox for N. antennata adults, was at least 2,338 ng greater than the other species exposed to each insecticide. Almost all of the LD50 values for adults were over 10 times greater than those of the same species' nymphs treated with the same insecticide. Thus monitoring of occurring species and their developmental stages is important for controlling effectively the stink bug pest complex by insecticides, especially by silafluofen or etofenprox. The estimated LD50 values can be used as baseline data to compare the susceptibility of the species collected in another year or location.

  20. Reevaluation of the type species and redescription of five species of Edessa (Heteroptera: Pentatomidae: Edessinae).

    Science.gov (United States)

    Silva, Valeria Juliete DA; Rider, David A; Fernandes, Jose Antonio Marin

    2017-11-13

    In accordance with the rules in the International Code of Zoological Nomenclature, the type species for the genus Edessa Fabricius, 1803 is now recognized to be Cimex antilope Fabricius, 1798 rather than the previously recognized Cimex cervus Fabricius, 1787. Edessa antilope is redescribed, as well as the following four species that have in the past been related or compared to E. antilope: E. arabs (Linnaeus, 1758) from French Guiana, Costa Rica and Panama (new record), E. helix Erichson, 1848 from Costa Rica, Panama, Venezuela, Suriname (new record), Guyana, Brazil (new record), Bolivia (new record) and Argentina (new record), E. ibex Breddin, 1903 from Costa Rica, Panama (new record), Ecuador, Brazil (new record), Peru and Bolivia (new record), and E. taurina Stål, 1862 from Mexico, Guatemala, Belize (new record), Honduras (new record). The distribution of Edessa antilope is expanded to Venezuela. The female of E. antilope and the male of E. taurina are described for the first time. Edessa antilope is removed from the synonymy of E. arabs and reinstated as valid species; additionally, E. costalis Stål, 1872 is removed from the synonym of E. helix and is placed as a junior synonym of E. antilope. Edessa saiga Breddin, 1903 is considered a junior synonym of E. ibex. Lectotypes are designated for all species. A key is provided for the identification of the species.

  1. ON THE PALEOFAUNA INVERTEBRATES (MOLLUSCA, ARTROPODA; INSECTA OF DIATOMITE DEPOSITS OF SHAMB–1 LOCALITY (SISIAN SUITE, EARLY PLEISTOCENE, ARMENIA

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    М. A. Маrjanyan

    2016-01-01

    Full Text Available Aim. The study of fossil insects from diatomaceous sediments of Shamb-1 locality of Sisian Suite (Early Pleistocene. The collection of fossils plants and animals of Institute of Botany of NAS RA and authors' findings served as material for study.Methods. The material is processed and prepared for study by conventional methods in paleontology for prints and fossils of insects from diatomaceous sediments. There are 654 samples studied: 2 samples were with mollusks’ imprints and 652 samples with imprints of insects, from which preserved marks on 291samples allowed to identify them up to order, family, genus and species.Results. The studied material refers to the Mollusca and Arthropoda (Insecta types. Insects are represented by species of orders Orthoptera (2 fam., Homoptera (1 fam., Heteroptera (2 fam., Coleoptera (15 fam., Hymenoptera (2 fam., Diptera (1 fam.. Coleopteras dominate among them and are presented with following species of the family – Carabidae, Dytiscidae, Hydrophilidae, Histeridae, Staphylinidae, Silphidae, Elateridae, Buprestidae, Lampyridae, Scarabaeidae, Chrysomelidae, Tenebrionidae, Coccinellidae, Cerambycidae, Curculionidae.Main conclusions. An analysis of the taxonomic composition of paleofauna was done, which corresponds to the recent fauna and with considering modern ecological characteristics of systematical groups and species. In the investigated location of Shamb-1 a version is suggested about the palaeolandscapes and palaeoclimate in the Early Pleistocene.

  2. Breeding of entomophages is from family of Pentatomidae

    OpenAIRE

    Moroz, M.; Мороз, М. С.; Мороз, Н. С.

    2016-01-01

    Technological parameters are offered in relation to optimization of the industrial breeding of predatory stinkbugs from family of Pentatomidae. The offered diet optimizes development, assists the increase of indexes of the productivity of imago, promotes efficiency of the use of predatory stinkbugs as biological agents of limitation of harmfulness of aboriginal phytophages. Cultivation of predatory stinkbugs of the first–second age is recommended on the larvae of Calliphora erythrocephala Mg....

  3. European birds and aposematic Heteroptera: review of comparative experiments

    NARCIS (Netherlands)

    Exnerová, A.; Svádová, K.; Fousová, P.; Fučiková, E.; Ježová, D.; Niederlová, A.; Kopečková, M.; Štys, P.

    2008-01-01

    The efficiency of defensive mechanisms in 11 European aposematic species of Heteroptera against various passerine predators was analysed. Bird species differed in their reactions to aposematic preys: small insectivorous birds generally avoided aposematic bugs, but granivorous birds as well as large

  4. Revisional notes on the genus Melucha (Hemiptera, Heteroptera, Coreidae

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    Harry Brailovsky

    2014-05-01

    Full Text Available Melucha grandicula sp. n. and M. perampla sp. n., (Hemiptera: Heteroptera: Coreidae: Coreinae: Nematopodini are described from Bolivia, Colombia, Paraguay and Peru. Melucha quadrivittis Stål, 1862, stat. restit., is resurrected from synonymy under M. phyllocnemis (Burmeister, 1835. Melucha ruficornis Breddin, 1903, syn. n., is synonymized under M. lineatella (Fabricius, 1803. An identification key for the known species of Melucha Amyot & Serville, 1843 is given. New distributional records for some previously known species are added.

  5. The adipokinetic hormones of Heteroptera: a comparative study

    Czech Academy of Sciences Publication Activity Database

    Kodrík, Dalibor; Marco, H. G.; Šimek, Petr; Socha, Radomír; Štys, P.; Gäde, G.

    2010-01-01

    Roč. 35, č. 2 (2010), s. 117-127 ISSN 0307-6962 R&D Projects: GA ČR GA522/07/0788 Grant - others:National Research Foundation(ZA) FA20070213000002; National Research Foundation(ZA) IFR2008071500048 Institutional research plan: CEZ:AV0Z50070508 Keywords : adipokinetic peptide * Heteroptera * mass spectrometry Subject RIV: ED - Physiology Impact factor: 1.417, year: 2010

  6. Karyotypes, male meiosis and comparative FISH mapping of 18S ribosomal DNA and telomeric (TTAGGn repeat in eight species of true bugs (Hemiptera, Heteroptera

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    Snejana Grozeva

    2011-11-01

    Full Text Available Eight species belonging to five true bug families were analyzed using DAPI/CMA3-staining and fluorescence in situ hybridization (FISH with telomeric (TTAGGn and 18S rDNA probes. Standard chromosomal complements are reported for the first time for Deraeocoris rutilus (Herrich-Schäffer, 1838 (2n=30+2m+XY and D. ruber (Linnaeus, 1758 (2n=30+2m+XY from the family Miridae. Using FISH, the location of a 18S rDNA cluster was detected in these species and in five more species: Megaloceroea recticornis (Geoffroy, 1785 (2n=30+XY from the Miridae; Oxycarenus lavaterae (Fabricius, 1787 (2n=14+2m+XY from the Lygaeidae s.l.; Pyrrhocoris apterus (Linnaeus, 1758 (2n=22+X from the Pyrrhocoridae; Eurydema oleracea (Linnaeus, 1758 (2n=12+XY and Graphosoma lineatum (Linnaeus, 1758 (2n=12+XY from the Pentatomidae. The species were found to differ with respect to location of a 18S rRNA gene cluster which resides on autosomes in O. lavaterae and P. apterus, whereas it locates on sex chromosomes in other five species. The 18S rDNA location provides the first physical landmark of the genomes of the species studied. The insect consensus telomeric pentanucleotide (TTAGGn was demonstrated to be absent in all the species studied in this respect, D. rutilus, M. recticornis, Cimex lectularius Linnaeus, 1758 (Cimicidae, E. oleracea, and G. lineatum, supporting the hypothesis that this motif was lost in early evolution of the Heteroptera and secondarily replaced with another motif (yet unknown or the alternative telomerase-independent mechanisms of telomere maintenance. Dot-blot hybridization analysis of the genomic DNA from C. lectularius, Nabis sp. and O. lavaterae with (TTAGGn and six other telomeric probes likewise provided a negative result.

  7. Case 3724 - Metochus abbreviatus Scott, 1874 (Insecta, Heteroptera): proposed precedence over Rhyparochromus erosus Walker, 1872 (currently Metochus erosus)

    Science.gov (United States)

    The purpose of this application, under Article 23.9.3 of the Code, is to conserve the widely used specific name Metochus abbreviatus Scott, 1874, for a species of rhyparochromid bugs from East Asia. The name is threatened by the senior subjective synonym Metochus erosus (Walker, 1872), which has bee...

  8. Molecular characterization, tissue distribution, and ultrastructural localization of adipokinetic hormones in the CNS of the firebug Pyrrhocoris apterus (Heteroptera, Insecta)

    Czech Academy of Sciences Publication Activity Database

    Kodrík, Dalibor; Stašková, Tereza; Jedličková, V.; Weyda, F.; Závodská, Radka; Pflegerová, Jitka

    2015-01-01

    Roč. 210, Jan 1 (2015), s. 1-11 ISSN 0016-6480 R&D Projects: GA ČR GA14-07172S Institutional support: RVO:60077344 Keywords : AKH * pre-pro-hormone * insect brain Subject RIV: ED - Physiology Impact factor: 2.667, year: 2015 http://www.sciencedirect.com/science/article/pii/S0016648014004158

  9. The genus Alphocoris in the Indomalaya (Hemiptera: Heteroptera: Scutelleridae).

    Science.gov (United States)

    RÉdei, DÁvid; Tsai, Jing-Fu; Jindra, ZdenĚk

    2018-02-21

    The Indomalayan species of the genus Alphocoris Germar, 1839 (Hemiptera: Heteroptera: Scutelleridae: Odontotarsinae: Odontotarsini) are revised. Three species, A. caudatus Rédei, Tsai Jindra, sp. nov. (India: Maharashtra), A. naso Rédei Tsai, sp. nov. (India: Goa), and A. asper Rédei, Tsai Jindra, sp. nov. (India: Goa and Maharashtra), are recognized. The type material of A. lixoides Germar, 1839 (type locality: Senegal) is documented; previous records of this species from India and Pakistan are considered as based on misidentifications, the species is restricted to the Afrotropical Region.

  10. [Aquatic heteroptera from Mariana County, Minas Gerais, Brazil].

    Science.gov (United States)

    de Souza, Marco A A; de Melo, Alan L; Vianna, Gustavo J C

    2006-01-01

    In surveys carried out in lotic and lentic environments in Mariana County, Minas Gerais state, Brazil, 35 genera and 64 species of aquatic and semi-aquatic Heteroptera were recorded, distributed in 13 families. Thirty four species were collected in lentic environments, while in lotic environments 48 species were collected, some of them common to both environments. Nepomorpha presented the greatest number of species (45), markedly for the family Naucoridae, represented by 12 species. Among the 19 Gerromorpha species collected, eight were Veliidae and six were Gerridae.

  11. Stoneflies (Plecoptera, Insecta from Vrachanska Planina Mountains

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    VIOLETA TYUFEKCHIEVA

    2016-05-01

    Full Text Available This work summarizes both literature and new data on the fauna of Plecoptera (Insecta of the Vrachanska Planina Mountains, Bulgaria. A total of 20 species and seven subspecies are known from the mountain. The recorded stoneflies belong to 12 genera and seven families. They represent 25% of the 108 stoneflies currently known from Bulgaria. Among the 27 species that have been recorded, two are Critically Endangered (CR, one –Endangered (EN and ten – Vulnerable (VU. From a zoogeographical point of view, one subspecies and four species from the Plecoptera, recorded in Vrachanska Planina Mts., are Balkan endemics: Capnopsis schilleri balcanica Zwick, 1984, Leuctra balcanica Rauser, 1965, Leuctra hirsuta Bogoescu, Tabacaru, 1960, Nemoura braaschi Joost, 1970 and Isoperla belai Illies, 1963. Four of the recorded species are rare for Bulgaria.

  12. Water scorpions (Heteroptera, Nepidae) and giant water bugs (Heteroptera, Belostomatidae): Sources of new members of the adipokinetic hormone/red pigment-concentrating hormone family

    Czech Academy of Sciences Publication Activity Database

    Gäde, G.; Šimek, Petr; Marco, H. G.

    2007-01-01

    Roč. 28, č. 7 (2007), s. 1359-1367 ISSN 0196-9781 Grant - others:Natioanl Research Foundation(ZA) 2053396 Institutional research plan: CEZ:AV0Z50070508 Keywords : Insects * Heteroptera * Water bugs Subject RIV: ED - Physiology Impact factor: 2.368, year: 2007

  13. First record of Sesbania punicea (Fabales: Fabaceae) as a host plant for Chinavia hilaris (Hemiptera: Pentatomidae)

    Science.gov (United States)

    The green stink bug, Chinavia hilaris (Say) (Hemiptera: Pentatomidae), is an economic pest of cotton, Gossypium hirsutum L. Numerous known non-crop hosts of C. hilaris that exist in field edges bordering cotton are sources of this stink bug in this crop. Sesbania punicea plants in a field border su...

  14. Two pests overlap: Drosophila suzukii (Diptera: Drosophilidae) use of fruit exposed to Halyomorpha halys (Hemiptera: Pentatomidae)

    Science.gov (United States)

    Spotted wing drosophila, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), and brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) are global economic pests. Both pests may co-occur on small fruits, and we investigated whether fruit recently exposed to H. halys woul...

  15. Morphometrics of the Southern Green Stink Bug [Nezara viridula (L.) (Hemiptera: Pentatomidae)] Stylet Bundle

    Science.gov (United States)

    The southern green stink bug, Nezara viridula (L.) (Hemiptera: Pentatomidae), is a cosmopolitan pest of high-value cash crops, including cotton (Gossypium hirsutum L.; Malvales: Malvaceae). The pest can ingest and transmit disease-causing bacterial and fungal pathogens of cotton. We hypothesized t...

  16. Fooling the harlequin bug (Hemiptera: Pentatomidae) using synthetic volatiles to alter host plant choice

    Science.gov (United States)

    Harlequin bug, Murgantia histrionica (Hahn) (Hemiptera: Pentatomidae), is a widespread invasive pest that feeds on a variety of brassicaceous crops and other plants. To understand olfactory cues which mediate host-finding, and possible utility in pest management, we deployed aggregation pheromone (m...

  17. Attraction of stink bug (Hemiptera: Pentatomidae) nymphs to Euschistus aggregation pheromone in the field

    Science.gov (United States)

    Phytophagous stink bugs (Hemiptera: Pentatomidae) are primary pests in most fruit, vegetable, grain, and row crops worldwide. Pheromones have been identified and synthesized for several species of economically important stink bug pests. When yellow pyramid traps are baited with lures containing thes...

  18. Virulence of BotaniGard® to Second Instar Brown Marmorated Stink Bug, Halyomorpha halys (Stål (Heteroptera: Pentatomidae

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    Bruce L. Parker

    2015-04-01

    Full Text Available The brown marmorated stink bug, Halyomorpha halys (Stål (BMSB is an exotic invasive insect originating in East Asia, currently causing significant damage to fruits, vegetables and other crops throughout most of the Mid-Atlantic states of the U.S. It also is a nuisance pest, entering homes in the fall in search of suitable overwintering sites. Two formulations of BotaniGard® with a strain of Beauveria bassiana (GHA as the active ingredient were tested against second instar BMSB. Both the wettable powder and the emulsifiable suspension formulations were efficacious at 1 × 107 conidia mL−1, causing 67%–80% mortality 9 days post treatment and 95%–100% after 12 days. The wettable powder formulation was slightly more efficacious.

  19. The morphology and histology of the male reproductive system in Dolycoris baccarum Linnaeus 1758 (Heteroptera: Pentatomidae)--light and scanning electron micoscope studies.

    Science.gov (United States)

    Özyurt, Nurcan; Candan, Selami; Suludere, Zekiye

    2013-01-01

    The male reproductive system of Dolycoris baccarum (Linnaeus 1758) is studied morphologically and histologically using both light and scanning electron microscopes (SEM). The reproductive system of the male D. baccarum consists of a pair of testis, a pair of vas deferens, a pair of seminal vesicles, accessory glands (mesadenia, ectadenia), a bulbus ejaculatorius, a pair of ectodermal sacs, and a ductus ejaculatorius. The number of testicular follicles varies from four to six. The testicular follicles have three different development zones (growth zone, maturation zone, differentiation zone). The testes are connected to the seminal vesicles by the vas deferens. Vas deferens and seminal vesicles, which are fine-long and cylindrical. The seminal vesicle is connected with bulbus ejaculatorius which is balloon-shaped and surrounded with accessory glands. The bulbus ejaculatorius is continuous with ductus ejaculatorius which connected to the aedeagus. Copyright © 2012 Elsevier Ltd. All rights reserved.

  20. A new species of the plant bug genus Rubrocuneocoris Schuh (Heteroptera: Miridae: Phylinae) from Hawaii

    Science.gov (United States)

    The new non-native species Rubrocuneocoris calvertae, n. sp. (Heteroptera: Miridae: Phylinae), found on the flowers of the invasive parasol leaf tree, Macaranga tanarius (L.) Müll. Arg., is described from Oahu and Hawaii counties in the Hawaiian Islands. Because the nearest relatives of this new sp...

  1. Een invasie van de Nieuw-Zeelandse tarwewants Nysius huttoni in Nederland (Heteroptera: Lygaeidae).

    NARCIS (Netherlands)

    Smit, J.T.; Reemer, M.; Aukema, B.

    2007-01-01

    Invasion of the New-Zealand wheat bug Nysius huttoni in the Netherlands (Heteroptera: Lygaeidae) In 2006 the European Invertebrate Survey - Netherlands, by order of the National Plant Protection Organisation, conducted a survey of the distribution and population characteristics of the true bug

  2. Heteroptera attracted to butterfly traps baited with fish or shrimp carrion

    Science.gov (United States)

    Records of Heteroptera collected at butterfly traps baited with fish or shrimp carrion during collecting trips to Bolivia, Brazil, Colombia, Ecuador, and Peru are presented. Traps consisted of a cylinder of net fabric (about 35 cm diam, 75 cm length) attached on the top and bottom to square pieces ...

  3. Cladistics and biogeography of the assassin bug genus Rasahus Amyot & Serville (Heteroptera: Reduviidae: Peiratinae)

    NARCIS (Netherlands)

    Morrone, J.J.; Coscarón, M. del C.

    1998-01-01

    The assassin bug genus Rasahus Amyot & Serville (Heteroptera: Reduviidae: Peiratinae) comprises 26 Neotropical species. A cladistic analysis of the genus was carried out using 63 characters from external morphology, body vestiture, and male and female genitalia, with the species considered as

  4. Ovary structure in a presocial insect, Elasmucha grisea (Heteroptera, Acanthosomatidae).

    Science.gov (United States)

    Ogorzałek, Antoni; Trochimczuk, Artur

    2009-11-01

    First generation egg clusters of Elasmucha grisea are more closely guarded than second generation clusters. The ovaries of this species are structured to enhance this behavior. The population of E. grisea from S-W Poland breeds in the spring (May-June) and late summer (July-August). The second generation clutches contain fewer eggs and are destroyed 3-4 days after oviposition by predators and parasitoids. The ovary structure in the studied species differs from that found in other Heteroptera. The average number of ovarioles per ovary is 24 while in the other investigated species the number of ovarioles per ovary is 6-7. Lateral oviducts are elongated and the ovarioles are arranged in a pennate pattern. Each ovariole contains only one growing ovarian follicle. Differentiation of the ovarioles and ovarian follicles is synchronised thus enabling simultaneous oviposition. A comparative analysis of the ovary structure during the life cycle, particularly the presence of atresive ovarian follicles in the ovarioles of egg- and nymph guarding females, as well as the shape and structure of the apical part of the tropharium all support the hypothesis of cooperation between females in E. grisea. A similar ovary structure has been observed in the Coccoidea (Hemiptera, Homoptera) which indicates presocial behavior.

  5. Phylogenetic approach to the study of Triatomines (Triatominae, Heteroptera

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    E. Tartarotti

    Full Text Available Triatomines are insects belonging to the Hemiptera order, Heteroptera suborder, Reduviidae family and Triatominae subfamily. All members of this subfamily are hematophagous. Triatomines evolved from Reduviidae predators and they are probably polyphyletic in origin. The combination of anatomical, physiological and ethological factors observed in this group, as well as the plesiomorphic and apomorphic characters that differentiate the five tribes and fourteen triatomine genera reinforce the polyphiletic hypotesis. However if we consider the five groups of triatomines, the Rhodniini, Cavernicolini, Bolboderini, Linshcosteini and Alberproseniini tribes constitute monophyletic groups, while the Triatomini tribe is considered polyphyletic. The New World is the center of triatomine diversity and seems to be the point of group origin. Of approximately 137 triatomine species, 105 are only found in the Americas. It is now considered that triatomines represent a polyphyletic group defined according to their convergent apomorphic hematophagous characters, which have appeared several times in Reduviidae. This study revises the phylogeny of these vectors of Chagas' disease, covering such topics as the origin of hematophagy in triatomines and ancestral proposal for the group.

  6. Papel dos besouros (Insecta, Coleoptera na Entomologia Forense

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    Wellington Emanuel dos Santos

    2014-12-01

    Full Text Available Esse trabalho apresenta uma revisão do papel que os besouros (Insecta, Coleoptera desempenham na Entomologia Forense. Discussões sobre ocorrência em cadáveres humanos e carcaças animais, estimativas de Intervalo Pós-Morte (IPM, estudos realizados no Brasil e em outros países, principais famílias de importância forense e aspectos biológicos, ecológicos e biogeográficos das espécies são apresentadas.

  7. Chewing lice (Insecta: Phthiraptera) associated with vertebrates in Mexico.

    Science.gov (United States)

    SÁnchez-Montes, Sokani; Colunga-Salas, Pablo; Álvarez-Castillo, LucÍa; GuzmÁn-Cornejo, Carmen; Montiel-Parra, Griselda

    2018-01-15

    The chewing lice (Insecta: Phthiraptera: Amblycera and Ischnocera) of Mexico have been little studied and many publications include isolated records. This paper summarizes current knowledge of chewing lice recorded from Mexico resulting from an exhaustive search of the literature published from 1866 to 2017. We found 342 louse species associated with 206 bird and 28 mammal species. As a result, we provide a checklist of the chewing lice recorded from Mexico, including a host-parasite list and their geographical distribution within the country.

  8. Efeitos da temperatura e da defesa da presa no consumo pelo predador Supputius cincticeps (Stäl (Heteroptera:Pentatomidae Effects of temperature and of the prey defense on the consumption by the predator Supputius cincticeps (Stäl (Heteroptera:Pentatomidae

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    Francisco Roberto de Azevedo

    1999-02-01

    Full Text Available A pesquisa objetivou determinar se a temperatura e a defesa da presa afetam o consumo e a utilização de larvas de Tenebrio molitor L. por ninfas de Supputius cincticeps (Stäl. Quantificaram-se em cada um dos ínstares do predador Supputius cincticeps os consumos bruto e diário das larvas de T. molitor com e sem defesa, ganho de peso total e ganho de peso diário pelo predador. Foram determinados os efeitos da defesa da presa e da temperatura ambiente no consumo de alimento pelas ninfas de 2º, 3º, 4º e 5º ínstares de S. cincticeps. A pesquisa foi conduzida na Unidade de Controle Biológico da Embrapa-Centro Nacional de Pesquisa de Algodão, em Campina Grande, PB, a 20, 25, e 30ºC, 60±10% UR e fotofase de 14 horas. Os resultados mostraram que o consumo bruto de larvas de T. molitor pelo S. cincticeps depende do ínstar do predador e da temperatura, do ínstar do predador e da defesa da presa, e da temperatura e defesa da presa; o consumo diário de S. cincticeps depende do ínstar do predador e da temperatura, e do ínstar do predador e da defesa da presa, e o ganho de peso de S. cincticeps depende do seu ínstar, da temperatura e da defesa apresentada pelas larvas de T. molitor. O tamanho das larvas de T. molitor funciona como defesa ao ataque de S. cincticeps.The objective of the research was to determine if the temperature and pray defense affect the consumption and utilization of Tenebrio molitor L. larvae by nymphs of Supputius cincticeps (Stäl. The gross and daily consumptions of T. molitor larvae with and without defense by the predator Supputius cincticeps, and the gross and daily weight gains of the predator were quantified. Effects of the prey defense and temperature on the food consumption by the 2nd, 3rd, 4th and 5th instar nimphs of S. cincticeps were determined. The research was carried out in the Biological Control Unit of the Embrapa-Centro Nacional de Pesquisa de Algodão, at Campina Grande, PB, Brazil, at 20, 25, and 30°C, 60±10% RH and 14L:10D photoperiod. The results showed that the gross consumption of T. molitor larvae by S. cincticeps depends on the predator instar and on temperature, on the predator instar and on the prey defense, and on temperature and on the prey defense; the daily consumption of S. cincticeps depends on its instar and on temperature, and on its instar and on the prey defense; and S. cincticeps weight gain depends on its instar, on temperature and on the prey defense. The size of T. molitor larvae works as a defense to attack of S. cincticeps.

  9. Desenvolvimento de Supputius cincticeps (Heteroptera, Pentatomidae alimentado com larvas de Zophobas confusa, Tenebrio molitor (Coleoptera, Tenebrionidae e Musca domestica (Diptera, Muscidae Development of Supputius cincticeps (Heteroptera, Pentatomidae fed with Zophobas confusa, Tenebrio molitor (Coleoptera, Tenebrionidae and Musca domestica (Diptera, Muscidae larvae

    Directory of Open Access Journals (Sweden)

    Eduardo B. Beserra

    1995-09-01

    Full Text Available Egg viability and nymphal development of the predatory bug Supputius cincticeps (Stål, 1860 were evaluated during two generations in the Biological Control Laboratory of the Núcleo de Biotecnologia Aplicada à Agropecuária (Bioagro/UFV in Viçosa (Minas Gerais, Brazil at 24.72±1.10ºC and photophase of 12 hours. Three treatments were represented by S. cincticeps fed with Zophobas confusa Gebien, 1906, Tenebrio molitor Linnaeus, 1758 and Musca domestica Linnaeus, 1758 larvae. Higher egg viability of this predator was found when the preys were Z. confusa and T. molitor, 74.46% and 80.91 %, than in M. domestica, 57.02%, but incubation period showed no differences between preys. Shorter nymphal development and higher nymphal viability were found with Z. confusa and T. molitor than with M. domestica. Higher weight increase was found for nymphs which originated males and females in the second generation specialy with the first two preys.

  10. Ciclo de vida y aspectos poblacionales de Edessa aff. aulacosterna Stal, 1872 (Heteroptera: Pentatomidae chinche del fruto del camu camu (Myrtaceae en zona de restinga, Ucayali, Perú Life cycle and population aspects of camu camu fruit stink bug Edessa aff. aulacosterna Stal, 1872 (Heteroptera: Pentatomidae in restinga zone, Ucayali, Peru

    Directory of Open Access Journals (Sweden)

    José Iannacone

    2007-01-01

    Full Text Available El camu camu es uno de los frutales nativos con gran potencial económico para la agroindustria y agro exportación. Edessa es una de las plagas del camu camu que provoca sequedad en los brotes, y en los frutos una mancha decolorada con círculos concéntricos bien marcados y un punto central al alimentarse. El objetivo del presente trabajo fue determinar el ciclo biológico bajo condiciones de laboratorio y la fluctuación poblacional de Edessa aff. aulacosterna "Chinche del fruto del camu camu" durante enero a noviembre del 2004 en el cultivo de camu camu, en parcelas en desarrollo y producción ubicadas en áreas de restinga inundables en Pucallpa, Ucayali, Perú. Se colectaron huevos, ninfas y adultos procedentes del distrito de Yarinacocha, Pucallpa, Ucayali, Perú para iniciar la crianza artificial. El tiempo de duración del huevo al I estadio ninfal fue 5,1 días. Se encontró un 94,6% de eclosión de los huevos, variando entre 12 hasta 14 huevos por postura. El tiempo transcurrido desde el huevo hasta II estadío fue de 37,3 días y del III al V estadío ninfal fue de 81,9 días. El porcentaje de mortalidad del primer estadio ninfal a adulto fue de 98,1%. Los adultos colectados se localizaron preferentemente sobre las ramas y el tallo de la planta, mientras que las ninfas se encontraron en los brotes tiernos. Con relación a su fluctuación poblacional, solo se registró posturas a lo largo del año en parcelas en producción. No se encontraron diferencias entre ninfas I a V, y adultos de Edessa aff. aulacosterna, entre plantaciones en producción y desarrollo de camu camu. Solo se encontró diferencias entre la época seca y lluviosa en las ninfas de III a V estadio en las plantas de camu camu en desarrollo. Edessa aff. aulacosterna presentó mayormente una distribución contagiosa. El adecuado conocimiento de la bioecología nos permite mejorar la estrategia de control de esta plaga.Camu camu is one of the native fruits with a great economic potential for agroindustry and agro exportation. Edessa is one camu camu pest that produces in dry buds and fruits with a mark decolorated with concentric circles well marked and a central point when they feed. The aim of the current research was to determinate the biological cycle under laboratory conditions and population fluctuations of Edessa aff. aulacosterna. "Camu camu fruit stink bug" during January to November, 2004 in camu-camu culture, in development and production parcels located in flooded areas of restinga in Pucallpa, Ucayali, Peru. Eggs, nymphs and adults were colected to begin artificial rearing proceeding of distrit of Yarinacocha, Pucallpa, Ucayali, Peru. Development time of eggs to 1th nymphal instar was 5.1 days. 94.6% of egg hatchability, varied between 12 until 14 egg-laying was found. The time passed since eggs until III nymphal instar was 37.3 días and of III to V nymphal instar was de 81.9 days. Percentage of mortality of 2nd nymphal instar to adult was 98,1%. Adults collected were localized mainly on branches and stem of the plants, while nymphs were found in delicated buds. In relation to seasonal populations only were registered eggs laying throught the year in parcels in production. Differences between nymphs I to V and adults of Edessa aff. aulacosterna, in production and development plantations were not found. Only differences in dry and wet period in III to V nymphs instar in development camu camu plants were found. Edessa aff. aulacosterna mainly presented a contagious distribution. Suitable knowledge of bioecology of Edessa aff. aulacosterna permit improves strategy of pest control.

  11. Monitoring of brown stink bug (Hemiptera: Pentatomidae) population dynamics in corn to predict its abundance using weather data

    Science.gov (United States)

    The brown stink bug (BSB), Euschistus servus (Say) (Hemiptera: Pentatomidae), is a serious economic pest of corn production in the Southeastern U. S. The BSB population dynamics was monitored for 17 wks from tasseling to pre-harvest of corn plants (i.e., late May to mid-September) using pheromone ...

  12. Host range of the exotic brown marmorated stink bug, Halyomorpha halys, (Hemiptera: Pentatomidae), implications for future distribution

    Science.gov (United States)

    Gary Bernon; Karen M. Bernhard; Anne L. Nielsen; James F. Stimmel; E. Richard Hoebeke; Maureen E. Carter

    2007-01-01

    Halyomorpha halys, (Hemiptera: Pentatomidae), is a pest in eastern Asia on soybeans and woody plants, including broadleaved trees and fruit trees. A population was discovered in Allentown, PA in 2001. H. halys is also a nuisance pest as it overwinters in homes and other buildings. Based on earlier reports to the Lehigh County...

  13. Limited predation potential by adult and larval lady beetles (Coleoptera: Coccinellidae) on Nezara viridula (Hemiptera: Pentatomidae) eggs and nymphs

    Science.gov (United States)

    The Coccinellidae (Coleoptera) co-occur in many habitats with many arthropods that are of suitable size as prey. The Pentatomidae (Hemiptera) are one such group of insects with eggs and early instars that could be susceptible to predation by Coccinellidae. The objective of this laboratory study wa...

  14. Checklist of terebrantian thrips (Insecta: Thysanoptera recorded from India

    Directory of Open Access Journals (Sweden)

    R. R. Rachana

    2017-01-01

    Full Text Available A consolidated systematic list of 333 species of terebrantian thrips, belonging to 118 genera (Insecta: Thysanoptera recorded so far from India, is provided in this article.  The list reveals that the family Thripidae has the lion’s share of 307 species, while Aeolothripidae, Melanthripidae, Merothripidae and Stenurothripidae contain very few species.  Further, analysis of the present study shows that around 40% of the listed 333 terebrantian species appear to be endemic based on the comparison of Indian fauna with that of the published data of thrips of adjoining regions.  Reports on the occurrence of exotic flower thrips, Frankliniella occidentalis (Pergande and Neohydatothrips samayunkur (Kudo are of concern to the country, as they are notorious for damage to the cultivated plants.  

  15. Phylogeny of the true water bugs (Nepomorpha: Hemiptera–Heteroptera) based on 16S and 28S rDNA and morphology

    DEFF Research Database (Denmark)

    Hebsgaard, Martin Bay; Andersen, Nils M.; Damgaard, Jakob

    2004-01-01

    Morphological characters and molecular sequence data were for the first time analysed separately and combined for the true water bugs (Hemiptera-Heteroptera, infraorder Nepomorpha). Data from forty species representing all families were included, together with two outgroup species representing...

  16. Host-specificity of monoxenous trypanosomatids: statistical analysis of the distribution and transmission patterns of the parasites from Neotropical Heteroptera

    Czech Academy of Sciences Publication Activity Database

    Kozminsky, E.; Kraeva, N.; Ishemgulova, A.; Dobáková, Eva; Lukeš, Julius; Kment, P.; Yurchenko, V.; Votýpka, J.; Maslov, D. A.

    2015-01-01

    Roč. 166, č. 5 (2015), s. 551-568 ISSN 1434-4610 R&D Projects: GA ČR(CZ) GA14-23986S Institutional support: RVO:60077344 Keywords : Trypanosomatids * Heteroptera * host-parasite specificity * biodiversity * Spliced Leader RNA Subject RIV: EB - Genetics ; Molecular Biology Impact factor: 2.898, year: 2015

  17. Checklist of the subfamilies Mirinae and Orthotylinae (Hemiptera: Heteroptera: Miridae in western parts of Kerman Province, Iran

    Directory of Open Access Journals (Sweden)

    Mohsen Shamsi

    2014-03-01

    Full Text Available A faunal study was carried out on the subfamilies Mirinae and Orthotylinae (Heteroptera: Miridae from different parts of western Kerman Province on various host plants. In total 16 species belonging to 14 genera were collected and identified from different host plants and localities.

  18. An unusual new species of Hallodapomimus Herczek, 2000 from the Eocene Baltic amber (Hemiptera, Heteroptera, Miridae, Phylinae

    Directory of Open Access Journals (Sweden)

    Aleksander Herczek

    2015-03-01

    Full Text Available Hallodapomimus antennatus sp. n. (Hemiptera: Heteroptera, Miridae, Phylinae, Hallodapini is described from a macropterous female found in Eocene Baltic amber. The new species can be recognized readily from the other species of the genus, mainly due to its unusual second antennal segment. A key for the identification of all known fossil Hallodapini is presented.

  19. Key biotic components of the indigenous Tortricidae and Heteroptera complexes occuring on macadamia in South Africa / by P.S. Schoeman

    OpenAIRE

    Schoeman, Pieter Schalk

    2009-01-01

    In South Africa macadamia nuts are attacked by a variety of mostly indigenous pests which can be divided into two basic complexes, namely a nut borer complex (consisting of 3 tortricid moths.) and a stink bug (Heteroptera) complex consisting of approximately 35 insect species. The Heteroptera complex causes approximately 60% damage in unsprayed orchards and the estimated annual heteropteran induced crop loss could be as high as R24 million. Gravid female tortricid moths could discriminate bet...

  20. The valid name for the genus Loxocephalus Foerster, 1862 (Insecta, Hymenoptera: Braconidae), preoccupied by Loxocephalus Eberhard, 1862 (Protozoa: Ciliophora)

    NARCIS (Netherlands)

    Foissner, W.; Achterberg, van C.

    1997-01-01

    Loxocephalus Foerster, 1862 (Insecta: Braconidae) is preoccupied by Loxocephalus Eberhard, 1862 (Protozoa: Ciliophora). The name previously used for Loxocephalus Foerster, Myiocephalus Marshall, 1897, becomes the valid name for the genus.

  1. Assessment of Feeding Acceptance and Injury of Kerman Pistachios, Pistacia vera, by Brown Marmorated Stink Bug (Hemiptera: Pentatomidae)

    OpenAIRE

    Lara, Jesús R; Kamiyama, Matthew T; Hernandez, Gabriel; Nay, Justin; Hoddle, Mark S

    2017-01-01

    Abstract In the United States, California (CA) is the primary commercial producer of pistachio nuts, Pistacia vera L. (Anacardiaceae). The brown marmorated stink bug (BMSB), Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), an invasive and polyphagous insect pest from Asia, has established in urban areas in several pistachio-growing counties in CA. Breeding BMSB populations have not been detected in commercial pistachio acreage. However, the detection of BMSB in Kern and Fresno counties, ma...

  2. The mitochondrial genome of the entomophagous endoparasite Xenosvesparum (Insecta: Strepsiptera)

    Energy Technology Data Exchange (ETDEWEB)

    Carapelli, Antonio; Vannini, Laura; Nardi, Francesco; Boore,Jeffrey L.; Beani, Laura; Dallai, Romano; Frati, Francesco

    2005-12-01

    In this study, the nearly complete sequence (14,519 bp) of the mitochondrial DNA (mtDNA) of the entomophagous endoparasite Xenos vesparum (Insecta: Strepsiptera) is described. All protein coding genes (PCGs) are in the arrangement known to be ancestral for insects, but three tRNA genes (trnA, trnS(gcu), and trnL(uag)) have transposed to derived positions and there are three tandem copies of trnH, each of which is potentially functional. All of these rearrangements except for that of trnL(uag) is within the short span between nad3 and nad4 and there are numerous blocks of unassignable sequence in this region, perhaps as remnants of larger scale predisposing rearrangements. X. vesparum mtDNA nucleotide composition is strongly biased toward As and Ts, as is typical for insect mtDNAs. There is also significant strand skew in the distribution of these nucleotides, with the J-strand being richer in A than T and in C than G, and the N-strand showing an opposite skew for complementary pairs of nucleotides. The hypothetical secondary structure of the 16S rRNA has also been reconstructed, obtaining a structural model similar to that of other insects.

  3. The Orthoptera species (Insecta from Danube Delta Biosphere Reserve (Romania

    Directory of Open Access Journals (Sweden)

    LUPU Gabriel

    2012-09-01

    Full Text Available The investigations that were made in the last 10 years and the review of scientific literature who relived studies made on grasshoppers, cricket and bush cricket species from Romania and especially from Danube Delta Biosphere Reserve (D.D.B.R. territory indicate the presence of 80 taxa belonging to Orthoptera order (ClassInsecta, an important number from a total of 187 taxa at national level. In the same time D.D.B.R. is characterized by some interesting elements of orthoptera fauna – one endemic species [Isophya dobrogensis (Kis 1994] on Popina Island, one new species for this territory [Metrioptera (Zeuneriana amplipennis (Brunner von Wattenwyl, 1882] and two species (Isophya dobrogensis (Kis, 1994 and Saga pedo (Pallas, 1771 from Red List of plant and animal species from D.D.B.R. Over 40% orthoptera species from Romania characterize through their presence Danube Delta Biosphere Reserve having a diverse geographical spreading, fact that is correlated with the diversity of dobroudjean climate. This is characterized by unique elements in Romania being an interface area between different types of climate.

  4. Anthocoris nemorum (Heteroptera: Anthocoridae) as predator of cabbage pests - voracity and prey preference

    DEFF Research Database (Denmark)

    Simonsen, Marie-Louise Rugholm; Enkegaard, Annie; Bang, Camilla Nordborg

    2010-01-01

    Laboratory experiments were performed with adult female Anthocoris nemorum (Linnaeus) (Heteroptera: Anthocoridae) at 20°C ± 1°C, L16:D8, 60–70% RH to determine voracity and preference on cabbage aphids (Brevicoryne brassicae L.) (Hemiptera: Aphididae), diamondback moth larvae (Plutella xylostella L....... The results showed that A. nemorum is a voracious predator of B. brassicae, P. xylostella and F. occidentalis and can therefore be considered as a potential candidate for biological control in cabbage....

  5. First occurrence of Alcaeorrhynchus grandis (Dallas) (Hemiptera: Pentatomidae) preying on defoliating caterpillars of oil palm in the state of Para, Brazil; Primeira ocorrencia de Alcaeorrhynchus grandis (Dallas) (Hemiptera: Pentatomidae) predando lagartas desfolhadoras do dendezeiro no estado do Para, Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Ribeiro, Rafael C.; Lemos, Walkymario P.; Muller, Antonio A. [EMBRAPA Amazonia Oriental, Belem, PA (Brazil). Lab. de Entomologia], e-mail: rafaufra@yahoo.com.br, e-mail: wplemos@cpatu.embrapa.br; Muller, Antonio A. [Embrapa Amazonia Oriental, Belem, PA (Brazil). Lab. de Entomologia; Bernardino, Aline S.; Buecke, Joel [Grupo Agropalma S/A., Tailandia, PA (Brazil)

    2010-01-15

    The oil palm Elaeis guineensis is usually attacked by pests, particularly, defoliating caterpillars. Between 2004 and 2006 a stinkbug predator (Asopinae) was registered preying on caterpillars of Brassolis sophorae L., Opsiphanes invirae Hubner (Lepidoptera: Nymphalidae) and Sibine spp. (Lepidoptera: Limacodidae), reducing their populations in commercial oil palm plantations in the State of Para, Brazil. Specimens of the natural enemy were collected, mounted, and identified as Alcaeorrhynchus grandis (Dallas) (Hemiptera: Pentatomidae), corresponding to the first report of the occurrence of this stinkbug attacking defoliating caterpillars of oil palm in Brazil. (author)

  6. Identification of defensive compounds in metathoracic glands of adults of the stink bug Dichelops melacanthus (Hemiptera: Pentatomidae)

    Energy Technology Data Exchange (ETDEWEB)

    Marques, Francisco A.; Wendler, Edison P.; Maia, Beatriz Helena L.N. Sales [Universidade Federal do Parana (UFPR), Curitiba, PR (Brazil). Dept. de Quimica]. E-mail: francisco.marques@pesquisador.cnpq.br; Ventura, Mauricio U.; Arruda-Gatti, Iara Cintra [Universidade Estadual de Londrina (UEL), PR (Brazil). Centro de Ciencias Agrarias. Dept. de Agronomia

    2007-07-01

    The contents of metathoracic glands of adults of the stink bug Dichelops melacanthus (Hemiptera: Pentatomidae) were analyzed. Compounds were identified by gas chromatography (GC), coupled GC-mass spectrometry and matching retention indices and mass spectra with those of authentic samples. Tridecane was the major component followed by lesser and approximately equal amounts of (E)-4-oxo-2-hexenal and (E)-2-octenal. Other compounds identified include (E)-2-hexenal, decane, (E)-2-hexenyl acetate, undecane, (E)-4-oxo-2-octenal, dodecane, (E)-2-octenyl acetate, 1-tridecene, tetradecane and pentadecane. (author)

  7. Identification of defensive compounds in metathoracic glands of adults of the stink bug Dichelops melacanthus (Hemiptera: Pentatomidae)

    International Nuclear Information System (INIS)

    Marques, Francisco A.; Wendler, Edison P.; Maia, Beatriz Helena L.N. Sales; Ventura, Mauricio U.; Arruda-Gatti, Iara Cintra

    2007-01-01

    The contents of metathoracic glands of adults of the stink bug Dichelops melacanthus (Hemiptera: Pentatomidae) were analyzed. Compounds were identified by gas chromatography (GC), coupled GC-mass spectrometry and matching retention indices and mass spectra with those of authentic samples. Tridecane was the major component followed by lesser and approximately equal amounts of (E)-4-oxo-2-hexenal and (E)-2-octenal. Other compounds identified include (E)-2-hexenal, decane, (E)-2-hexenyl acetate, undecane, (E)-4-oxo-2-octenal, dodecane, (E)-2-octenyl acetate, 1-tridecene, tetradecane and pentadecane. (author)

  8. EFFECTS OF WEEVILS (INSECTA: COLEOPTERA: CURCULIONIDAE) CONTROL PRODUCTS, OVER THE GROWTH, DEVELOPMENT, AND PRODUCTION OF PLANTAIN

    OpenAIRE

    M. Muñoz, Liliana; Cañas, Guillermo L.; Urrea, Aura I.; Guarín, Juan H.

    2013-01-01

    In a farm in the municipality of Andes (Antioquia, Colombia), parcels were planted with Dominico Hartón plantain associated with Caturra-type coffee, where weevil damage (Insecta: Coleoptera: Curculionidae) occurred in 100% of the plantain plants, corms of approximately 2 kg were planted under the same association system. From the sowing until harvest, six types of products were applied every two months on these plantations: chemical of the region (Clorpirifos and Carboxin + Thiram), Carbofur...

  9. Checklist of butterfly (Insecta: Lepidoptera) fauna of Tehsil Tangi, Khyber Pakhtunkhwa, Pakistan

    OpenAIRE

    Farzana Khan Perveen; Haroon

    2015-01-01

    The butterflies (Insecta: Lepidoptera)are well known insects, play an important role in the ecosystem as bioindicators and pollinators. They have bright colours, remarkable shapes and supple flight. The present study was conducted to prepare the checklist of butterfly fauna of Tehsil Tangi during August, 2014 to May, 2015. A total of 506 specimens were collected belong to 3 families with 18 genera and 23 species. The collected species are the common or lemon emigrant, Catopsila ponoma Fabrici...

  10. Does feeding by Halyomorpha halys (Hemiptera: Pentatomidae) reduce soybean seed quality and yield?

    Science.gov (United States)

    Owens, D R; Herbert, D A; Dively, G P; Reisig, D D; Kuhar, T P

    2013-06-01

    The nonnative brown marmorated stink bug, Halyomorpha halys Stål (Hemiptera: Pentatomidae), has become an abundant pest of mid-Atlantic soybean since its introduction in the mid-1990s. Currently, there is little information indicating how this new pest should be managed in soybean or if economic thresholds developed for native stink bugs should be adjusted. In 2010 and 2011, field cage studies were conducted in Beltsville, MD, and Suffolk, VA, to evaluate H. halys injury to three different soybean reproductive development stages. Cages were infested for 2 wk using densities of zero, one, two, four, or eight stink bugs (fifth instars and adults) per 0.3 row-m. Cage plots were harvested, and subsamples were taken to determine pod losses and seed quality. Feeding injury to soybean caused by H. halys was similar to that of native stink bugs, as evidenced by seed destruction, punctures, and destroyed pods. Densities of four stink bugs per 0.3 row-m resulted in significant seed damage in three of four experiments. The full flowering (R2) soybean development stage was least affected by H. halys feeding. The full pod (R4) and the full seed (R6) stage were similarly sensitive to injury. There was no significant yield loss was associated with stink bug densities at either location, although there were significant differences among stages in two of four experiments. The data do not indicate that threshold densities for H. halys should be different than for the native stink bugs.

  11. Feeding preference ofNezara viridula (Hemiptera: Pentatomidae and attractiveness of soybean genotypes

    Directory of Open Access Journals (Sweden)

    Efrain de Santana Souza

    2013-12-01

    Full Text Available Nezara viridula (L. (Hemiptera: Pentatomidae is a cosmopolitan insect that causes economic damages to several cultures, in particular soybeans (Glycine max [L.] Merr. Among the techniques that involve Integrated Pest Management, the resistance of plants is pointed as a tool of great value and can contribute to the reduction of populations of insects. The feeding preferences of adults of southern green stink bug (N. viridula, and the attractiveness of soybean genotypes were evaluated under laboratory conditions to detect the most resistant material against attack from this insect. A choice test, using mature grains and green pods of the genotypes was carried out, in which the number of individuals attracted in different periods was counted. Feeding preference was evaluated in the choice tests using green pods and the number of pricks and the average time spent feeding by pricks were evaluated. In addition, texture and trichome density in the green pods were evaluated. The mature grains of 'TMG 117RR' and 'TMG 121RR' were less attractive to the adults of N. viridula. Regarding the green pods, 'IAC 17' and PI 227687 were less attractive; 'IAC 17' and 'IAC PL1' were less consumed, indicating the feeding non-preference as a resistance mechanism. 'IAC 17', 'TMG-117RR' and PI 227687 presented high levels of trichome density, and in 'IAC 17' this morphological characteristic was considered to be the main resistance factor against N. viridula. These results may be useful for breeding programs that focus on the resistance of soybeans to insects.

  12. REPRODUÇÃO DE Edessa meditabunda (HEMIPTERA: PENTATOMIDAE EM ALGODOEIRO

    Directory of Open Access Journals (Sweden)

    Rosalia Azambuja

    2015-05-01

    Full Text Available O percevejo-asa-preta-da-soja Edessa meditabunda (Fabricius (Hemiptera: Pentatomidae no final do ciclo da soja dispersa para algodoeiro e utiliza essa planta como hospedeiro alternativo. Visando conhecer o potencial desta espécie como praga em algodoais e auxiliar na tomada decisão quanto ao manejo deste inseto, hipotetizou-se nesse trabalho que o algodoeiro é nutricionalmente adequado para a reprodução e desenvolvimento de E. meditabunda. Os tratamentos testados foram: 1 folhas e maçã de algodoeiro e 2 dieta padrão, recomendada para criação de pentatomídeos fitófagos em laboratório, utilizada como testemunha. As características biológicas avaliadas foram: período de desenvolvimento ninfal, duração de cada ínstar, porcentagem de sobrevivência, peso dos adultos na emergência, longevidade de machos e de fêmeas, período de pré-oviposição e de oviposição, número total de ovos por fêmea e fecundidade das fêmeas. Observou-se que, apesar do prolongamento do período de desenvolvimento ninfal, as ninfas alimentadas com algodoeiro sobreviveram, atingiram a fase adulta e os adultos se reproduziram, o que nos permite sugerir que o algodoeiro seja uma planta nutricionalmente adequada para o desenvolvimento e reprodução de E. meditabunda, permitindo a manutenção do inseto em campo após a colheita da soja.  RESUMO El chinche Edessa meditabunda (Fabricius (Hemiptera: Pentatomidae al final del ciclo de la soja emigra al cultivo de algodón y utiliza esta planta como un huésped alternativo. Con el objetivo de conocer el potencial de esta especie como una plaga en los algodonales y ayudar en la toma de decisiones con respecto al manejo de este insecto, se planteó la hipótesis en este estudio que el algodón y nutritiva, adecuada para la reproducción y el desarrollo de E. meditabunda. Los tratamientos fueron:1 las hojas y el fruto del algodón 2 dieta estándar recomendada para la cría de pentatomidos fitófagos en el

  13. Characterizing Damage of Brown Marmorated Stink Bug (Hemiptera: Pentatomidae) in Blueberries.

    Science.gov (United States)

    Wiman, Nik G; Parker, Joyce E; Rodriguez-Saona, Cesar; Walton, Vaughn M

    2015-06-01

    Brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), is a severe economic pest of growing importance in the United States, Canada, and Europe. While feeding damage from H. halys has been characterized in tree fruit, vegetables, and agronomic crops, less is known about the impacts of stink bugs on small fruits such as blueberries. In this study, we examined H. halys feeding on two representative early and late ripening blueberry cultivars in Oregon and New Jersey. This research examined how different densities of H. halys confined on blueberry clusters for week-long periods affected fruit quality at harvest. After fruit were ripe, we stained and quantified the number of salivary sheaths on berries as an indication of feeding pressure. Feeding by H. halys damaged the fruits by causing increased levels of external discoloration, and internal damage in the form of tissue necrosis. Exposure of berries to H. halys was also associated with decreasing berry weights and lower soluble solids in fruits. However, the different cultivars did not respond consistently to feeding pressure from H. halys. Weekly variability in feeding pressure of two of the cultivars as quantified by the number of stylet sheaths per berry was largely accounted for by environmental variables. We conclude that H. halys does have potential to severely damage blueberries and may become an important economic pest. Characterization of damage is important because correct identification of insect damage is key for successful management. © The Authors 2015. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  14. A unique guild of Lepidoptera associated with the glacial relict populations of Labrador tea (Ledum palustre Linnaeus, 1753) in Central European peatlands (Insecta: Lepidoptera)

    Czech Academy of Sciences Publication Activity Database

    Spitzer, Karel; Jaroš, Josef

    2014-01-01

    Roč. 42, č. 166 (2014), s. 319-327 ISSN 0300-5267 Institutional support: RVO:60077344 Keywords : Insecta * Lepidoptera * relict peat bogs Subject RIV: EH - Ecology, Behaviour Impact factor: 0.435, year: 2014

  15. Relationships between locomotor activity, oxidative damage and life span in males and females of the linden bug, Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

    Czech Academy of Sciences Publication Activity Database

    Buřičová, Marcela; Hodková, Magdalena

    2013-01-01

    Roč. 110, č. 3 (2013), s. 443-449 ISSN 1210-5759 R&D Projects: GA ČR GAP502/10/1612 Institutional support: RVO:60077344 Keywords : Heteroptera * Pyrrhocoridae * Pyrrhocoris apterus Subject RIV: ED - Physiology Impact factor: 1.076, year: 2013 http://www.eje.cz/pdfs/110/3/443

  16. Do long- and short-winged adult females of the bug Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae) differ in lifespan and reproductive capacity?

    Czech Academy of Sciences Publication Activity Database

    Socha, Radomír

    2013-01-01

    Roč. 110, č. 1 (2013), s. 115-121 ISSN 1210-5759 R&D Projects: GA ČR GAP501/10/1215 Institutional research plan: CEZ:AV0Z50070508 Keywords : Heteroptera * Pyrrhocoridae * Pyrrhocoris apterus Subject RIV: ED - Physiology Impact factor: 1.076, year: 2013 http://www.eje.cz/pdfs/110/1/115

  17. Leptoglossus lonchoides Allen (Heteroptera, Coreidae), causente de la caida de los frutos de Bactris gasipaes (Palmae) en la Amazonia central

    OpenAIRE

    Couturier, Guy; Clement, C.R.; Viana Filho, P.

    1991-01-01

    #Leptoglossus lonchoïdes$ Allen (Heteroptera Coreidae) provoque la chute des fruits de #Bactris gasipaes$ HBK (Palmae) en Amazonie centrale. Les plantations de "pejibaye", #B.gasipaes$, un palmier neotropical domestiqué, souffrent d'importantes chutes de jeunes fruits en Amazonie centrale (Manaus, Amazonas, Brésil), dues en partie, peut-être principalement, à la punaise #L. lonchoïdes$. Dans cet article, on évalue l'importance économique des dégâts et on décrit l'insecte. (Résumé d'auteur)...

  18. Monophyly, review, six new species and DNA barcode of micropterous Afromontane Afropictinus (Heteroptera: Aradidae).

    Science.gov (United States)

    Heiss, Ernst; Grebennikov, Vasily

    2016-12-15

    The micropterous East African flat bug genus Afropictinus Heiss, 1986 (Heteroptera: Aradidae: Mezirinae) is revised. In addition to the type and only known species A. congoensis (Hoberlandt, 1956) from Rwanda, four new species from Tanzania (A. castor sp. nov., A. hylas sp. nov., A. idas sp. nov., A. nauplius sp. nov.), one new species from the Democratic Republic of the Congo (A. kahuzianus sp. nov.), and one new species from Ethiopia (A. nabu sp. nov.) are described and illustrated. An identification key is presented to all seven nominal species of Afropictinus. DNA barcodes of 28 individuals of Afropictinus species were newly generated and together with 12 sequences of other Aradidae were made publicly available at dx.doi.org/10.5883/DS-AFROPICT. These mtDNA sequences were analyzed phylogenetically using Maximum Likelihood approach with 500 bootstraps. Obtained topology reveals a monophyletic Afropictinus with high statistical support (84%), although its sister group remains elusive. Both specimens of non-Tanzanian Afropictinus species included in the study (A. kahuzianus and A. nabu) were nested among Tanzanian congeners. The internal clades within Afropictinus, except for those at species and population level, had lesser statistical support. Despite of intense sampling, no Afropictinus species was found in mountain forests of geologically young (Ngorongoro-Kilimanjaro Volcanic Belt, which suggest reduced dispersal capacities.

  19. Chromosomes and their meiotic behaviour in two species of Dieuches Dohrn, 1860 (Heteroptera: Lygaeidae: Rhyparochromini

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    Harbhajan Kaur

    2009-08-01

    Full Text Available The Lygaeidae (Heteroptera are a large and diverse family in which the male diploid chromosomal complement ranges from 10 to 30. Diploid numbers of 14 and 16 are taken as two modal numbers of the family. The Rhyparochrominae, one of the largest subfamilies of the Lygaeidae, are known to be heterogeneous both cytologically and morphologically. Available data on the tribe Rhyparochromini reveal that all species are characterized by the presence of a pair of microchromosomes (m-chromosomes and have an XY/XX (♂/♀ sex chromosome determining system. Dieuches coloratus (Distant, 1909 and D. insignis (Distant, 1918 belonging to Rhyparochromini, have 2n=14=10A+2m+XY and 2n=12=8A+2m+XY respectively. Both the species are similar inone pair of distinctly large autosomes in their chromosome complements. The metaphase plate arrangement of autosomes, sex chromosomes and m-chromosomes in D. coloratus is similar to the common condition observed in the tribe Rhyparochromini. In D. insignis, however, the arrangement is different. Here, metaphase I is usual in showing peripheral position of autosomes and central position of sex chromosomes and m-chromosomes. At metaphase II, however, autosomes, sex chromosomes and m-chromosomes are peripherally placed, an arrangement, which is not reported earlier in the tribe Rhyparochromini.

  20. Burkholderia of Plant-Beneficial Group are Symbiotically Associated with Bordered Plant Bugs (Heteroptera: Pyrrhocoroidea: Largidae).

    Science.gov (United States)

    Takeshita, Kazutaka; Matsuura, Yu; Itoh, Hideomi; Navarro, Ronald; Hori, Tomoyuki; Sone, Teruo; Kamagata, Yoichi; Mergaert, Peter; Kikuchi, Yoshitomo

    2015-01-01

    A number of phytophagous stinkbugs (order Heteroptera: infraorder Pentatomomorpha) harbor symbiotic bacteria in a specific midgut region composed of numerous crypts. Among the five superfamilies of the infraorder Pentatomomorpha, most members of the Coreoidea and Lygaeoidea are associated with a specific group of the genus Burkholderia, called the "stinkbug-associated beneficial and environmental (SBE)" group, which is not vertically transmitted, but acquired from the environment every host generation. A recent study reported that, in addition to these two stinkbug groups, the family Largidae of the superfamily Pyrrhocoroidea also possesses a Burkholderia symbiont. Despite this recent finding, the phylogenetic position and biological nature of Burkholderia associated with Largidae remains unclear. Based on the combined results of fluorescence in situ hybridization, cloning analysis, Illumina deep sequencing, and egg inspections by diagnostic PCR, we herein demonstrate that the largid species are consistently associated with the "plant-associated beneficial and environmental (PBE)" group of Burkholderia, which are phylogenetically distinct from the SBE group, and that they maintain symbiosis through the environmental acquisition of the bacteria. Since the superfamilies Coreoidea, Lygaeoidea, and Pyrrhocoroidea are monophyletic in the infraorder Pentatomomorpha, it is plausible that the symbiotic association with Burkholderia evolved at the common ancestor of the three superfamilies. However, the results of this study strongly suggest that a dynamic transition from the PBE to SBE group, or vice versa, occurred in the course of stinkbug evolution.

  1. Does the aggressiveness of the prey modify the attack behavior of the predator Supputius cincticeps (Stål (Hemiptera, Pentatomidae? A agressividade da presa altera o comportamento de ataque do predador Supputius cincticeps (Stål (Hemiptera, Pentatomidae?

    Directory of Open Access Journals (Sweden)

    Rafael Braga da Silva

    2012-06-01

    Full Text Available Does the aggressiveness of the prey modify the attack behavior of the predator Supputius cincticeps (Stål (Hemiptera, Pentatomidae? The stink bug Supputius cincticeps (Stål (Hemiptera, Pentatomidae is a predator found in several Brazilian regions, which possesses desirable attributes as a natural control agent and in biological control programs. The aim of this study was to test if the attack behavior and predation success of S. cincticeps were affected by prey species. Larvae of Tenebrio molitor (L. (Coleoptera, Tenebrionidae, Spodoptera frugiperda (J. E. Smith (Lepidoptera, Noctuidae, and Thyrinteina arnobia (Stoll (Lepidoptera, Geometridae were offered to S. cincticeps in laboratory bioassays where predatory attack and prey defensive behaviors were observed for 2-hour periods. The attack behavior of S. cincticeps changed with the prey species offered. More than 25% of T. molitor and S. frugiperda larvae were immediately attacked, but T. arnobia was not immediately attacked by S. cincticeps. Successful attack (i.e., successful insertion of the predator stylets into the prey depends on the region of the body attacked, with a greater proportion of successful attacks in the anterior than in the median or posterior regions. Larvae of T. arnobia and S. frugiperda displayed a sequence of abrupt head and body movements in response to S. cincticeps attack. Attempts of predation were more successful on T. molitor and S. frugiperda than on T. arnobia. Information about the differential attack behavior of S. cincticeps on different prey species is important for designing successful biological control programs using this hemipteran predator.A agressividade da presa altera o comportamento de ataque do predador Supputius cincticeps (Stål (Hemiptera, Pentatomidae? O percevejo Supputius cincticeps (Stål (Hemiptera, Pentatomidae é um predador encontrado em várias regiões brasileiras, que possui atributos desejáveis como agente de controle natural ou em

  2. Storage of Euschistus heros Eggs (Fabricius) (Hemiptera: Pentatomidae) in Liquid Nitrogen for Parasitization by Telenomus podisi Ashmead (Hymenoptera: Platygastridae).

    Science.gov (United States)

    Favetti, B M; Butnariu, A R; Doetzer, A K

    2014-06-01

    Records in the literature with regard to the influence of freezing of pentatomid eggs on parasitism by microhymenopterans are scarce. In this research, we compared the storage of Euschistus heros (Fabricius) (Hemiptera: Pentatomidae) eggs in liquid nitrogen for different periods with the objective of optimizing the multiplication of Telenomus podisi Ashmead (Hymenoptera: Platygastridae) in the laboratory. Fresh eggs of E. heros were exposed (S3, S6) or not (NS3, NS6) to UV light for 30 min and stored in 1.5-mL plastic vials in liquid nitrogen either for 3 (S3, NS3) or 6 months (S6, NS6), and egg suitability to parasitoid development was compared to control eggs exposed (SC) or not (NSC) to UV treatment. Global data analysis showed that E. heros eggs stored in liquid nitrogen with or without UV treatment, for 3 or 6 months, were suitable for T. podisi parasitization.

  3. Effects of Temperatures on Immature Development and Survival of the Invasive Stink Bug (Hemiptera: Pentatomidae).

    Science.gov (United States)

    Reed, Darcy A; Ganjisaffar, Fatemeh; Palumbo, John C; Perring, Thomas M

    2017-12-05

    Bagrada hilaris (Burmeister) (Hemiptera: Pentatomidae) is a non-native stink bug that feeds primarily on cole crops and wild mustards. Its invasion into desert agriculture in California and Arizona presents a conundrum between rapid pest development at warm temperatures and severe damage to cool season crops. In this study, the development and survival of B. hilaris were determined at nine constant temperatures (ranging from 20-42°C) when reared on organically grown broccoli florets. Egg hatching was greatly delayed at 20°C, and first instar nymphs did not survive at this temperature. No eggs hatched at 42°C. The highest survival rates (70.0-86.7%) of B. hilaris were observed at temperatures ranging from 24 to 35°C. The total developmental rate of B. hilaris from egg to adult increased from 0.027 to 0.066/d from 24 to 35°C, and then slightly dropped to 0.064/d at 39°C. Based on the linear model, B. hilaris requires 285.4 degree-days to complete its development. The Briere 1 model predicted the lower and upper temperature thresholds as 16.7 and 42.7°C, respectively. The optimal temperature for development (TOpt) was estimated as 36°C. According to the results, B. hilaris is well adapted to warm conditions, and temperatures of 33-39°C are well suited for B. hilaris development. Information from this study helps explain the rapid range expansion of B. hilaris across the southern United States and will be instrumental in predicting future expansion across the rest of the country and in other parts of the world. The relationship between thermal thresholds and invasion dynamics of this pest are discussed. © The Author(s) 2017. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  4. Nymphal and adult performance of Euschistus heros (Fabr.) (Hemiptera: Pentatomidae), as a potential alternative host for egg parasitoids multiplication

    International Nuclear Information System (INIS)

    Peres, Wilsimar A.A.; Correa-Ferreira, Beatriz S.

    2001-01-01

    This research aimed to evaluate the potential of Euschistus heros (Fabr.) (Hemiptera: Pentatomidae) as host for multiplication of egg parasitoids, by determining the nymphal and adult performance of E. heros from laboratory and the field, comparing with Nezara viridula (L.) (Hemiptera: Pentatomidae), under mass conditions. One hundred eggs of E. heros and N. viridula were placed among the leaves of soybean plants contained in cages (50x50x70 cm) and observation were made until adult emergence. The nymphs fed on soybean pods, dry soybean and peanuts seeds. The number of nymphs that reached adulthood and the development time were calculated. The survivorship and reproduction performance of laboratory and field populations of E. heros and N. viridula were evaluated during 13 weeks in February-May 1999. The number of eggs produced by 100 pairs of stink bugs per cage containing the same diet was recorded. Nymphal development time of E. heros and N. viridula was 33.0 and 34.0 days and 65.0% and 71.3% of nymphs reached adulthood, respectively. Adults of E. heros reared under laboratory conditions produced 2.5 times more eggs (5547.0 eggs/cage) than those collected in the field (2262.7 eggs/cage). The adult field population of E. heros had reduced reproduction and longevity due to parasitism by Hexacladia smithii Ash. (Hymenoptera: Encyrtidae). The N. viridula adults collected in the field produced 1.7 times more eggs (6304.9 eggs/cage) than those reared in the laboratory (3609.2 eggs/cage). E. heros laboratory reared is a promising host for egg parasitoids multiplication when compared with N. viridula collected in the field. (author)

  5. Nymphal and adult performance of Euschistus heros (Fabr.) (Hemiptera: Pentatomidae), as a potential alternative host for egg parasitoids multiplication

    Energy Technology Data Exchange (ETDEWEB)

    Peres, Wilsimar A.A. [Universidade Federal do Parana, Curitiba, PR (Brazil). Dept. de Zoologia; Correa-Ferreira, Beatriz S. [EMBRAPA, Londrina, PR (Brazil). Centro Nacional de Pesquisa de Soja

    2001-12-15

    This research aimed to evaluate the potential of Euschistus heros (Fabr.) (Hemiptera: Pentatomidae) as host for multiplication of egg parasitoids, by determining the nymphal and adult performance of E. heros from laboratory and the field, comparing with Nezara viridula (L.) (Hemiptera: Pentatomidae), under mass conditions. One hundred eggs of E. heros and N. viridula were placed among the leaves of soybean plants contained in cages (50x50x70 cm) and observation were made until adult emergence. The nymphs fed on soybean pods, dry soybean and peanuts seeds. The number of nymphs that reached adulthood and the development time were calculated. The survivorship and reproduction performance of laboratory and field populations of E. heros and N. viridula were evaluated during 13 weeks in February-May 1999. The number of eggs produced by 100 pairs of stink bugs per cage containing the same diet was recorded. Nymphal development time of E. heros and N. viridula was 33.0 and 34.0 days and 65.0% and 71.3% of nymphs reached adulthood, respectively. Adults of E. heros reared under laboratory conditions produced 2.5 times more eggs (5547.0 eggs/cage) than those collected in the field (2262.7 eggs/cage). The adult field population of E. heros had reduced reproduction and longevity due to parasitism by Hexacladia smithii Ash. (Hymenoptera: Encyrtidae). The N. viridula adults collected in the field produced 1.7 times more eggs (6304.9 eggs/cage) than those reared in the laboratory (3609.2 eggs/cage). E. heros laboratory reared is a promising host for egg parasitoids multiplication when compared with N. viridula collected in the field. (author)

  6. Description of Nasocoris lautereri sp. nov. from the Balkan peninsula, with a review of the genus Nasocoris (Hemiptera: Heteroptera: Miridae: Phylinae)

    Czech Academy of Sciences Publication Activity Database

    Kment, P.; Bryja, Josef

    2007-01-01

    Roč. 1633, - (2007), s. 39-61 ISSN 1175-5326 Institutional research plan: CEZ:AV0Z60930519 Keywords : Insecta * Balkan peninsula * host plant Subject RIV: EG - Zoology Impact factor: 0.691, year: 2007 http://www.mapress.com/zootaxa/2007f/z01633p038f.pdf

  7. Uncovering the molecular organization of unusual highly scattered 5S rDNA: The case of Chariesterus armatus (Heteroptera).

    Science.gov (United States)

    Bardella, Vanessa Bellini; Cabral-de-Mello, Diogo Cavalcanti

    2018-03-10

    One cluster of 5S rDNA per haploid genome is the most common pattern among Heteroptera. However, in Chariesterus armatus, highly scattered signals were noticed. We isolated and characterized the entire 5S rDNA unit of C. armatus aiming to a deeper knowledge of molecular organization of the 5S rDNA among Heteroptera and to understand possible causes and consequences of 5S rDNA chromosomal spreading. For a comparative analysis, we performed the same approach in Holymenia histrio with 5S rDNA restricted to one bivalent. Multiple 5S rDNA variants were observed in both species, though they were more variable in C. armatus, with some of variants corresponding to pseudogenes. These pseudogenes suggest birth-and-death mechanism, though homogenization was also observed (concerted evolution), indicating evolution through mixed model. Association between transposable elements and 5S rDNA was not observed, suggesting spreading of 5S rDNA through other mechanisms, like ectopic recombination. Scattered organization is a rare example for 5S rDNA, and such organization in C. armatus genome could have led to the high diversification of sequences favoring their pseudogenization. Copyright © 2017. Published by Elsevier B.V.

  8. Successful hatching from eggs carried by females and naturally removed from incubant males in Belostoma spp. water bugs (Heteroptera: Belostomatidae

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    Ana Lía Estévez

    2006-06-01

    Full Text Available Within Belostomatinae water bug species (Heteroptera, Belostomatidae it has been hitherto believed that the completion of embryonic development is successful only if eggs are incubated on male hemelytra. Nevertheless, we found egg successful hatching from a back- brooding Belostoma elegans (Mayr and B. micantulum (Stål females, as well as from fertilized eggs kicked off from four back-brooder B. elegans males. One "encumbered" B. elongatum Montandon female was also recorded, but eggs did not hatch after she removed them. Rev. Biol. Trop. 54(2: 515-517. Epub 2006 Jun 01.Se considera que el desarrollo embrionario y la emergencia de las ninfas de las especies de Belostomatinae (Heteroptera, Belostomatidae se cumplen con éxito si los huevos son incubados sobre el espacio dorsal de machos adultos. No obstante, hemos registrado eclosiones exitosas a partir de dos hembras grávidas portando huevos sobre su dorso; una de ellas de la especie Belostoma elegans (Mayr, la otra de B. micantulum (Stål. Se registra la eclosión de huevos, previamente removidos del área de postura por los propios machos incubantes de B. elegans (N=4 y la presencia de una hembra de B. elongatum Montandon, portando huevos sobre sus hemiélitros, los cuales no eclosionaron después de haber sido removidos por la propia hembra.

  9. Los coleópteros y heterópteros acuáticos del Parque Nacional Calilegua (Provincia de Jujuy, Argentina Aquatic Coleoptera and Heteroptera from Calilegua National Park (Jujuy Province, Argentina

    Directory of Open Access Journals (Sweden)

    Patricia L. M. Torres

    2008-06-01

    Full Text Available Se expone una lista de las especies de Coleoptera y Heteroptera presentes en los cuerpos de agua del Parque Nacional Calilegua. Se registraron 51 especies de Coleoptera incluidas en 28 géneros y cinco familias, y 37 especies de Heteroptera distribuidas en 22 géneros y 10 familias; sólo cuatro especies de Coleoptera y cinco de Heteroptera fueron citadas previamente del parque. Se mencionan por primera vez para la Argentina dos especies de Veliidae (Heteroptera: Rhagovelia trista Gould y Platyvelia brachialis (Stål, así como una especie y un género de Dytiscidae (Coleoptera: Desmopachria chei K. B. Miller y Bidessonotus Régimbart. Además, es la primera ocasión en que se mencionan para la provincia de Jujuy 24 especies y 11 géneros de Coleoptera (Leuronectes Sharp, Bidessonotus, Hypodessus Guignot, Desmopachria Babington, Celina Aubé, Gyrinus Linné, Haliplus Latreille, Hydrocanthus Say, Suphis Aubé, Anacaena Thomson, Derallus Sharp y 19 especies y 12 géneros de Heteroptera (Mesovelia Mulsant & Rey, Hebrus Curtis, Merragata White, Microvelia Westwood, Rhagovelia Mayr, Platyvelia J. T. Polhemus & D. A. Polhemus, Limnogonus Stål, Curicta Stål, Ranatra Fabricius, Centrocorisa Lundblad, Pelocoris Stål, Neoplea Esaki & China.A list of the species of aquatic Coleoptera and Heteroptera occurring in Calilegua National Park is presented. Fifty-one species of Coleoptera included in 28 genera and five families, and 37 species of Heteroptera belonging to 22 genera and 10 families were recorded. Only four species of Coleoptera and five of Heteroptera had been previously cited from the park. Two species of Veliidae (Heteroptera (Rhagovelia trista Gould, Platyvelia brachialis (Stål, along with one species and one genus of Dytiscidae (Coleoptera (Desmopachria chei K. B. Miller, Bidessonotus Régimbart are new records for Argentina. Twenty-four species and 11 genera of Coleoptera (Leuronectes Sharp, Bidessonotus, Hypodessus Guignot, Desmopachria

  10. The first decapeptide adipokinetic hormone (AKH) in Heteroptera: A novel AKH from a South African saucer bug, Laccocoris spurcus (Naucoridae, Laccocorinae)

    Czech Academy of Sciences Publication Activity Database

    Marco, H. G.; Šimek, Petr; Gäde, G.

    2011-01-01

    Roč. 32, č. 3 (2011), s. 454-460 ISSN 0196-9781 R&D Projects: GA ČR GA203/09/2014 Grant - others:National Research Foundation, Pretoria(ZA) FA2007021300002; National Research Foundation, Pretoria(ZA) IFR2008071500048 Institutional research plan: CEZ:AV0Z50070508 Keywords : Insects * Heteroptera * Laccocoris spurcus Subject RIV: ED - Physiology Impact factor: 2.434, year: 2011

  11. Vehicle-mounted net sampling of airborne micro-Heteroptera in western Liberia, West Africa: 1. Isometopinae (Miridae).

    Science.gov (United States)

    KrÜger, Andreas

    2018-02-11

    A vehicle-mounted "car-net" is a rarely used technique of insect sampling. In Liberia, it was used over several consecutive months, and the first results of taxonomic analyses of Heteroptera from the by-catch are presented, namely on the mirid subfamily Isometopinae ("jumping tree bugs"). So far, no isometopine species have been known from Liberia.        New records of Isometopinae in Liberia are provided including: Isometopus slateri (Akingbohungbe), Myiomma cobbeni Akingbohungbe, M. rubra Smith, and M. rubrovenata Smith. Additional new species are described, including: Isometopus bongensis sp. nov., Paloniella garmsi sp. nov., P. erinacea sp. nov., Ptisca liberiense sp. nov., Myiomma albostiolata sp. nov., M .brunnea sp. nov., M. fuscipes sp. nov., M. goellneri sp. nov. and M. variabilis sp. nov. A new genus with one included species is similarly described as follows: Bongiella nodistylis gen. nov. et sp. nov.

  12. New Record of Leptoglossus zonatus (Dallas (Heteroptera: Coreidae Attacking Starfruit (Averrhoa carambola L. in Sinop, Mato Grosso, Brazil

    Directory of Open Access Journals (Sweden)

    Evaldo Pires

    2011-03-01

    Resumo. Leptoglossus zonatus (Dallas (Heteroptera: Coreidae um percevejo fitófago amplamente encontrado no continente Americano. Essa espécie encontra-se associada a diversas culturas agrícolas, onde se estabelecem devido a oferta de alimento e de condições favoráveis ao seu desenvolvimento. O objetivo foi registrar a ocorrência de L. zonatus atacando frutos de carambola em Sinop, Mato Grosso, Brasil e relatar nova planta hospedeira para esse percevejo. Adultos e imaturos foram encontrados durante os meses de setembro a novembro de 2009, atacando frutos de carambola (Averrhoa carambola L. no município de Sinop, Mato Grosso, Brasil. O ataque desse percevejo prejudica a qualidade dos frutos, permitindo que outros insetos como dípteros da família Phoridae tenham acesso a secreções do fruto pelo orifício feito pelo estilete desse percevejo, causando assim, danos na qualidade da carambola.

  13. The Beetle (Coleoptera and True bug (Heteroptera species pool of the alpine “Pian di Gembro” wetland (Villa di Tirano, Italy and its conservation

    Directory of Open Access Journals (Sweden)

    Matteo Montagna

    2011-04-01

    Full Text Available he C oleoptera and Heteroptera species pool was investigated in the “Pian di Gembro” wetland (Villa di T irano, Sondrio, Italy. T he wetland consists of a bog and its surroundings, referred to as wetland components, that are both subjected to a diversified intermediate management regime (DIMR. T he application of the DIMR for plant species conservation resulted in the establishment of 11 wetland zones with a characteristic vegetation. In a three year sampling program, 997 C oleoptera and Heteroptera representing 141 species from 14 families were collected. Among these species, 64 species share both wetland components, 11 are restricted to the bog and 63 were found in the surroundings only. Among the species pool there were 23 tyrphophile taxa and only one tyrphobiont. With the exception of one zone, all zones are inhabited by zone-specific species. By taking into account both the general species pool and the pool of species of particular interest to conservationists, only one zone can be considered as redundant since it is inhabited by species that occur also in other zones. Hence, all the zones, with one exception, are effective for species pool conservation. The existing DIMR implemented for plant species conservation is also effective for conserving the species pool of C oleoptera and Heteroptera.

  14. First occurrence of Alcaeorrhynchus grandis (Dallas) (Hemiptera: Pentatomidae) preying on defoliating caterpillars of oil palm in the state of Para, Brazil

    International Nuclear Information System (INIS)

    Ribeiro, Rafael C.; Lemos, Walkymario P.; Muller, Antonio A.

    2010-01-01

    The oil palm Elaeis guineensis is usually attacked by pests, particularly, defoliating caterpillars. Between 2004 and 2006 a stinkbug predator (Asopinae) was registered preying on caterpillars of Brassolis sophorae L., Opsiphanes invirae Hubner (Lepidoptera: Nymphalidae) and Sibine spp. (Lepidoptera: Limacodidae), reducing their populations in commercial oil palm plantations in the State of Para, Brazil. Specimens of the natural enemy were collected, mounted, and identified as Alcaeorrhynchus grandis (Dallas) (Hemiptera: Pentatomidae), corresponding to the first report of the occurrence of this stinkbug attacking defoliating caterpillars of oil palm in Brazil. (author)

  15. Assessment of Feeding Acceptance and Injury of Kerman Pistachios, Pistacia vera, by Brown Marmorated Stink Bug (Hemiptera: Pentatomidae)

    Science.gov (United States)

    Kamiyama, Matthew T; Hernandez, Gabriel; Nay, Justin; Hoddle, Mark S

    2017-01-01

    Abstract In the United States, California (CA) is the primary commercial producer of pistachio nuts, Pistacia vera L. (Anacardiaceae). The brown marmorated stink bug (BMSB), Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), an invasive and polyphagous insect pest from Asia, has established in urban areas in several pistachio-growing counties in CA. Breeding BMSB populations have not been detected in commercial pistachio acreage. However, the detection of BMSB in Kern and Fresno counties, major Kerman pistachio producing areas in CA, underscored key knowledge gaps on BMSB ecology in CA and motivated investigations on the susceptibility of pistachio nuts to BMSB feeding. Laboratory feeding trials conducted in quarantine under permit indicated that adult BMSB stylets can penetrate developing pistachio shells and associated feeding was correlated with kernel necrosis for nuts collected mid to late season (June to August 2016). Feeding damage estimates indicated that higher levels of kernel injury were associated with female BMSB when compared to feeding by male BMSB. These results suggest that there is probable risk of feeding damage to field grown pistachios from BMSB. The implications of this study for BMSB pest management in the CA pistachio system and future research directions are discussed. PMID:29117381

  16. Assessment of Feeding Acceptance and Injury of Kerman Pistachios, Pistacia vera, by Brown Marmorated Stink Bug (Hemiptera: Pentatomidae).

    Science.gov (United States)

    Lara, Jesús R; Kamiyama, Matthew T; Hernandez, Gabriel; Nay, Justin; Hoddle, Mark S; Gao, Yulin

    2017-09-01

    In the United States, California (CA) is the primary commercial producer of pistachio nuts, Pistacia vera L. (Anacardiaceae). The brown marmorated stink bug (BMSB), Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), an invasive and polyphagous insect pest from Asia, has established in urban areas in several pistachio-growing counties in CA. Breeding BMSB populations have not been detected in commercial pistachio acreage. However, the detection of BMSB in Kern and Fresno counties, major Kerman pistachio producing areas in CA, underscored key knowledge gaps on BMSB ecology in CA and motivated investigations on the susceptibility of pistachio nuts to BMSB feeding. Laboratory feeding trials conducted in quarantine under permit indicated that adult BMSB stylets can penetrate developing pistachio shells and associated feeding was correlated with kernel necrosis for nuts collected mid to late season (June to August 2016). Feeding damage estimates indicated that higher levels of kernel injury were associated with female BMSB when compared to feeding by male BMSB. These results suggest that there is probable risk of feeding damage to field grown pistachios from BMSB. The implications of this study for BMSB pest management in the CA pistachio system and future research directions are discussed. © The Authors 2017. Published by Oxford University Press on behalf of Entomological Society of America.

  17. Developmental biology, polymorphism and ecological aspects of Stiretrus decemguttatus (Hemiptera, Pentatomidae, an important predator of cassidine beetles

    Directory of Open Access Journals (Sweden)

    Lucia Maria Paleari

    2013-03-01

    Full Text Available Developmental biology, polymorphism and ecological aspects of Stiretrus decemguttatus (Hemiptera, Pentatomidae, an important predator of cassidine beetles. Stiretrus decemguttatus is an important predator of two species of cassidine beetles, Botanochara sedecimpustulata (Fabricius, 1781 and Zatrephina lineata (Fabricius, 1787 (Coleoptera, Cassidinae, on the Marajó Island, Brazil. It attacks individuals in all development stages, but preys preferentially on late-instar larvae. Its life cycle in the laboratory was 43.70 ± 1.09 days, with an egg incubation period of six days and duration from nymph and adult stages of 16.31 ± 0.11 and 22.10 ± 1.67 days, respectively. The duration of one generation (T was 12.65 days and the intrinsic population growth rate (r 0.25. These data reveal the adjustment of the life cycle of S. decemgutattus with those of the two preys, but suggest greater impact on Z. lineata. However, no preference over cassidine species was shown in the laboratory. Up to 17 different color patterns can be found in adults of S. decemguttatus, based on combinations of three basic sets of color markings. Some of them resemble the markings of chrysomelids associated with Ipomoea asarifolia (Convolvulaceae and are possibly a mimetic ring. Three color patterns were identified in nymphs, none of which was associated with any specific adult color pattern.

  18. Brown Marmorated Stink Bug (Hemiptera: Pentatomidae) Infestations in Tree Borders and Subsequent Patterns of Abundance in Soybean Fields.

    Science.gov (United States)

    Aigner, B L; Kuhar, T P; Herbert, D A; Brewster, C C; Hogue, J W; Aigner, J D

    2017-04-01

    The invasive brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), is an important pest of soybean (Glycine max L. Merr.) in the Mid-Atlantic United States. In order to assess the influence of nonmanaged wooded borders on H. halys infestation patterns in soybean, 12 soybean fields in Orange and Madison Counties, VA, were sampled each week from July to October in 2013 or 2014 for H. halys. At each location, five 2-min visual counts of H. halys life stages were made on tree of heaven (Ailanthus altissima Mill.) and other favorable host trees along a wooded border, on the adjacent soybean edge, 15 m into the soybean field, and 30 m into the field. Seasonal data showed a clear trend at all locations of H. halys densities building up on A. altissima-dominated wooded borders in July, then, gradually moving into adjacent soybean field edges later in the summer. Halyomorpha halys did not move far from the invading field edge, with approximately half as many bugs being present at 15 m into the field and very few being detected 30 m into the field. These results have implications for continued monitoring and management using field border sprays, particularly on edges adjacent to woods. © The Authors 2017. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  19. Female-Specific Specialization of a Posterior End Region of the Midgut Symbiotic Organ in Plautia splendens and Allied Stinkbugs

    Science.gov (United States)

    Hayashi, Toshinari; Hosokawa, Takahiro; Meng, Xian-Ying; Koga, Ryuichi

    2015-01-01

    Many stinkbugs (Insecta: Hemiptera: Heteroptera) are associated with bacterial symbionts in a posterior region of the midgut. In these stinkbugs, adult females excrete symbiont-containing materials from the anus for transmission of the beneficial symbionts to their offspring. For ensuring the vertical symbiont transmission, a variety of female-specific elaborate traits at the cellular, morphological, developmental, and behavioral levels have been reported from diverse stinkbugs of the families Plataspidae, Urostylididae, Parastrachiidae, etc. Meanwhile, such elaborate female-specific traits for vertical symbiont transmission have been poorly characterized for the largest and economically important stinkbug family Pentatomidae. Here, we investigated the midgut symbiotic system of a pentatomid stinkbug, Plautia splendens. A specific gammaproteobacterial symbiont was consistently present extracellularly in the cavity of numerous crypts arranged in four rows on the midgut fourth section. The symbiont was smeared on the egg surface upon oviposition by adult females, orally acquired by newborn nymphs, and thereby transmitted vertically to the next generation and important for growth and survival of the host insects. We found that, specifically in adult females, several rows of crypts at the posterior end region of the symbiotic midgut were morphologically differentiated and conspicuously enlarged, often discharging the symbiotic bacteria from the crypt cavity to the main tract of the symbiotic midgut. The female-specific enlarged end crypts were also found in other pentatomid stinkbugs Plautia stali and Carbula crassiventris. These results suggest that the enlarged end crypts represent a female-specific specialized morphological trait for vertical symbiont transmission commonly found among stinkbugs of the family Pentatomidae. PMID:25636847

  20. Spatial Distribution and Coexisting Patterns of Adults and Nymphs of Tibraca limbativentris (Hemiptera: Pentatomidae) in Paddy Rice Fields.

    Science.gov (United States)

    Alves, Tavvs M; Maia, Aline H N; Barrigossi, José A F

    2016-12-01

    The rice stem stink bug, Tibraca limbativentris Stål (Hemiptera: Pentatomidae), is a primary insect pest of paddy rice in South America. Knowledge of its spatial distribution can support sampling plans needed for timely decisions about pest control. This study aimed to investigate the spatial distribution of adults and nymphs of T. limbativentris and determine the spatial coexistence of these stages of development. Fifteen paddy rice fields were scouted once each season to estimate insect densities. Scouting was performed on regular grids with sampling points separated by ∼50 m. Moran's I and semivariograms were used to determine spatial distribution patterns. Spatial coexistence of nymphs and adults was explored via spatial point process. Here, adults and nymphs had typically contrasting spatial distribution patterns within the same field; however, the frequency of aggregation was not different between these developmental stages. Adults and nymphs were aggregated in seven fields and randomly distributed in the other eight fields. Uniform distribution of adults or nymphs was not observed. The study-wide semivariogram ranges were ∼40 m for adults and ∼55 m for nymphs. Nymphs and adults spatially coexisted on 67% of the fields. Coexisting patterns were classified using one of the following processes: stage-independent, bidirectional attractive, unidirectional attractive, bidirectional inhibiting, or unidirectional inhibiting. The information presented herein can be important for developing sampling plans for decision-making, implementing tactics for site-specific management, and monitoring areas free of T. limbativentrisResumoO percevejo-do-colmo Tibraca limbativentris Stål (Hemiptera: Pentatomidae) é uma praga primária na cultura do arroz irrigado na América do Sul. O conhecimento de sua distribuição espacial é essencial para desenvolver planos de amostragem e para o controle desta praga. Nosso objetivo foi investigar a distribuição espacial de

  1. Toxicity of Piper aduncum (Piperaceae) Essential Oil Against Euschistus heros (F.) (Hemiptera: Pentatomidae) and Non-Effect on Egg Parasitoids.

    Science.gov (United States)

    Turchen, L M; Piton, L P; Dall'Oglio, E L; Butnariu, A R; Pereira, M J B

    2016-10-01

    Plant essential oils have been recognized as significant natural resources for insecticides. Herein, we have assessed the toxicity of the essential oil of Piper aduncum (Piperaceae) against Euschistus heros (F.) (Hemiptera: Pentatomidae), a key soybean pest in Neotropical America. In addition, we have assessed its effect on the performance of egg parasitoids. The essential oil was obtained from the leaves of P. aduncum via hydrodistillation. Subsequently, bioassays of the concentration response to eggs (contact and immersion methods), nymphs, and adults (topical application) were conducted, to assess the lethal effects on the stink bug. We also evaluated the performance of parasitism and adult emergence of egg parasitoids, when the host eggs were treated with essential oil. In the egg bioassay, both exposure methods were efficient for unviable eggs (immersion LC 50  = 15.64 mg mL -1 ; contact LC 50  = 21.29 mg mL -1 ), with the highlight on the immersion method. The bioassay with nymphs indicated a higher toxicity of essential oil, with lower concentrations (LC 50  = 11.37 mg mL -1 ) being required to cause the death of insects. For adults, a reduction in survival of insects was observed, and consequently, there was a reduction in the number of individuals in the next generation. Although the essential oil was toxic to E. heros, it exhibited lower toxicity for egg parasitoids, as there was no effect on parasitism and the emergence of wasps. We discuss likely explanations for such selectivity. In summary, we found that the essential oil was promising for the control of E. heros, because it caused deleterious effects at all development stages of the stink bug and had no effect on parasitism and emergence of the egg parasitoids, which suggested compatibility with biological control.

  2. Comparing vegetation types and anthropic disturbance levels in the Atlantic forest: how do Pentatomoidea (Hemiptera: Heteroptera) assemblages respond?

    Science.gov (United States)

    Bianchi, F M; Mendonça, M S; Campos, L A

    2014-12-01

    The Atlantic Forest (AF) is considered the most fragmented and endangered Brazilian biome. The diversity of phytophagous insects increases after disturbances in forests, and it was hypothesized the Pentatomidae can furnish ecologically reliable information in terms of diversity in response to the changes occurring in AF. Our aim was to quantify the response of assemblages of Pentatomoidea to gradient of human disturbance in two vegetation types of the AF-dense ombrophilous forest (DOF) and mixed ombrophilous forest (MOF). Twelve transects were grouped into environmental classes, namely open, intermediate, and closed. Overall, 1,017 pentatomoids were sampled, representing 64 species. The open environment was more abundant than closed environment, though it is expected that Pentatomoidea respond with increasing abundance when under light or moderate disturbance. The MOF was more abundant than DOF, and the composition differed between both of them. Given the differences in composition between MOF and DOF, abiotic variables are important factors acting as environmental filters for Pentatomoidea, not just directly on the insects, but probably also on the nutritional support of their host plants.

  3. Termite (Insecta, Isoptera) assemblage of a gallery forest relic from the Chaco province (Argentina): taxonomic and functional groups

    OpenAIRE

    Godoy, M. C.; Laffont, E. R.; Coronel, J. M.; Etcheverry, C.

    2012-01-01

    Comunitat de tèrmits (Insecta, Isoptera) d’un relicte de selva en galeria del Chaco (Argentina): grups taxonòmics i funcionals Es va analitzar la termitofauna de la selva en galeria de la Reserva Colonia Benítez (província del Chaco, Argentina) mitjançant el protocol d’estimació de la diversitat d’isòpters (transsectes de 100 x 2 m). Es van detetcar 12 espècies incloses en 10 gèneres i dues famílies (Kalotermitidae i Termitidae) pertanyents als quatre grups de tèrmits establerts en funció ...

  4. Attraction of Male Nymphs to Adult Male Volatiles in the Bronze Bug Thaumastocoris peregrinus Carpintero & Dellape (Heteroptera: Thaumastocoridae).

    Science.gov (United States)

    Calvo, M V; Groba, H F; Martínez, G; Sellanes, C; Rossini, C; González, A

    2017-12-23

    The bronze bug, Thaumastocoris peregrinus Carpintero & Dellape (Heteroptera: Thaumastocoridae), is an exotic emerging pest in Eucalyptus commercial forests in South America, Africa and southern Europe. Information on the chemical communication system and reproductive ecology of this insect is scant, and it may be relevant for designing management strategies for eucalypt plantations. Adults and nymphs usually aggregate in the field, possibly by means of chemical signals. Males emit large amounts of 3-methyl-2-butenyl butyrate, which attracts conspecific adult males but not females. The ecological role of this putative male aggregation pheromone remains unknown. Here, we report olfactometer bioassays showing that late-instar male nymphs are also attracted to synthetic 3-methyl-2-butenyl butyrate and to adult male volatile extracts, which contain this compound as the major component. As previously shown for adult females, nymphs that moulted into females were not attracted to either volatile stimulus. The intra-gender attraction of nymphs and adults may be related to the exploitation of food resources, or as a reproductive strategy for newly emerged males. Further studies on the reproductive behaviour and mating system of T. peregrinus will contribute to understanding the ecological significance of male-male, adult-nymph attraction, as well as the practical applications that may result from these findings.

  5. Study of the mayfly order Ephemeroptera (Insecta in Brazil: a scienciometric review

    Directory of Open Access Journals (Sweden)

    Yulie Shimano

    2013-12-01

    Full Text Available Study of the mayfly order Ephemeroptera (Insecta in Brazil: a scienciometric review. Despite an increase in the number of studies in recent years of the aquatic insect order Ephemeroptera (the mayflies much still remains to be learnt. In order to identify the current state of knowledge of this group in Brazil, we performed a scienciometric analysis with the purpose of identifying the strong and weak points of Brazilian research into the group. Our research used the "Institute for Scientific Information - ISI" database and was based on the abstracts, titles and keywords of manuscripts published between 1992 and 2011. We selected the papers with the combination of the words "Ephemeroptera" and "Brazil*" based on a search in February 2012. We analyzed 92 articles, and noted a lack of studies in some Brazilian states, no specific studies about some families, and an absence of phylogenetic studies. To improve ecological studies, it is necessary to fine-tune taxonomic resolution. Moreover, there is a lack of studies investigating the environmental variables which influence the distribution of mayflies. Despite these gaps, if the rate of publication with mayflies proceeds at the same pace, we anticipate that many of these knowledge gaps will be closed.

  6. Pupal development and pigmentation process of a polka-dotted fruit fly, Drosophila guttifera (Insecta, Diptera).

    Science.gov (United States)

    Fukutomi, Yuichi; Matsumoto, Keiji; Agata, Kiyokazu; Funayama, Noriko; Koshikawa, Shigeyuki

    2017-06-01

    Various organisms have color patterns on their body surfaces, and these color patterns are thought to contribute to physiological regulation, communication with conspecifics, and signaling with the environment. An adult fly of Drosophila guttifera (Insecta: Diptera: Drosophilidae) has melanin pigmentation patterns on its body and wings. Though D. guttifera has been used for research into color pattern formation, how its pupal development proceeds and when the pigmentation starts have not been well studied. In this study, we defined the pupal stages of D. guttifera and measured the pigment content of wing spots from the pupal period to the period after eclosion. Using a transgenic line which carries eGFP connected with an enhancer of yellow, a gene necessary for melanin synthesis, we analyzed the timing at which the yellow enhancer starts to drive eGFP. We also analyzed the distribution of Yellow-producing cells, as indicated by the expression of eGFP during pupal and young adult periods. The results suggested that Yellow-producing cells were removed from wings within 3 h after eclosion, and wing pigmentation continued without epithelial cells. Furthermore, the results of vein cutting experiments showed that the transport of melanin precursors through veins was necessary for wing pigmentation. These results showed the importance of melanin precursors transported through veins and of extracellular factors which were secreted from epithelial cells and left in the cuticle.

  7. Thrips species (Insecta: Thysanoptera) associated with flowers in a restinga fragment in northeastern Brazil.

    Science.gov (United States)

    Lima, I M B; Almeida-Filho, M A; Lima, M G A; Bonilla, O H; Lima, E F B

    2018-03-22

    With the growing volume of research involving Thysanoptera in Brazil, studies were carried out to improve our understanding of the diversity of thrips in areas where the fauna has historically been neglected. Accordingly, we recorded the diversity of thrips (Insecta: Thysanoptera) associated with a restinga fragment located on the campus of the State University of Ceará (UECE), Fortaleza, Ceará state, and computed the estimated richness and diversity indices. Samples were collected from 2011 through 2013 from flowers of 86 plant species. The material was taken to the Laboratory of Insect-Plant Interaction, where thrips were screened under stereomicroscope. We collected 456 adults and 58 immatures, representing 14 species, in addition to one unidentified species of Treherniella. Microcephalothrips abdominalis was found on a large number of host plants, and Frankliniella insularis was the most common species. About two-thirds of the total richness of thrips species was associated with three plant families (Amaranthaceae, Caesalpiniaceae and Poaceae); six thrips species were each associated with only one plant species. The richness of the species collected was close to that estimated by Bootstrap and Jackknife 1 analysis. The Shannon-Wiener (H') and Simpson (D) diversity indexes were 1,7607 and 0.7769, respectively. Although the species are common, 46 new associations between plant species and thrips were established, 13 of which are true host associations, which demonstrates the importance of coastal vegetation in maintaining populations of thrips.

  8. Checklist of butterfly (Insecta: Lepidoptera fauna of Tehsil Tangi, Khyber Pakhtunkhwa, Pakistan

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    Farzana Khan Perveen

    2015-12-01

    Full Text Available The butterflies (Insecta: Lepidopteraare well known insects, play an important role in the ecosystem as bioindicators and pollinators. They have bright colours, remarkable shapes and supple flight. The present study was conducted to prepare the checklist of butterfly fauna of Tehsil Tangi during August, 2014 to May, 2015. A total of 506 specimens were collected belong to 3 families with 18 genera and 23 species. The collected species are the common or lemon emigrant, Catopsila ponoma Fabricius; mottled emigrant, Catopsilia pyranthe Linnaeus; clouded yellow, Colias fieldii Fabricius; common grass yellow, Eurema hecabe Linnaeus; eastern pale clouded yellow butterfly, Colias erate Esper; Indian cabbage white, Pieris canidia Sparrman; Indian little orange tip, Colotis etrida Boisduval; pioneer white or African caper white, Belonias aurota Fabricius; plain tiger, Danaua chrysippus Linnaeus; blue tiger, Tirumala liminniace Cramer; peacock pansy, Junonia almanac Linnaeus; Indian fritillary, Argyreus hyperbius Linnaeus; Indian red admiral, Venesa indica Herbst; yellow pansy, Junonia hierta Fabricius; blue pansy, Junonia orytha Linnaeus; white edged rock brown, Hipparchia parisatis Kollar; banded tree brwon, Lethe confuse Aurivillius; common castor, Ariadne merione Cramer; painted lady, Caynthia cardui Linnaeus; Himalayan sailer, Neptis mahendra Moore; common boran, Euthalia garuda Hewitson; lime butterfly, Papilio demoleus Linnaeus and great black mormon butterfly, Papilio polytes Linnaeus. It was concluded that the family Nymphalidae has the highest numbers of individuals in the present checklist. It is recommended that butterfly fauna of the study area should be conserved and their habitat should be protected.

  9. Conservation of mayflies (Insecta, Ephemeroptera in Espírito Santo, southeastern Brazil

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    Fabiana Criste Massariol

    2014-12-01

    Full Text Available Conservation of mayflies (Insecta, Ephemeroptera in Espírito Santo, southeastern Brazil. Ephemeroptera exhibits great diversity among bodies of freshwater in the Atlantic Forest, a biome that is suffering from massive human impact. Within this context, the creation of conservation units using biological information is more recommended than economic, cultural, or political criteria. The distribution pattern of 76 Ephemeroptera species was analyzed using the biogeographical methods Parsimony Analysis of Endemicity and Network Analysis Method in order to infer relevant areas for conservation of the mayfly community in Espírito Santo. The results obtained from both analyses were largely congruent, and pointed out four relevant areas for conservation: two in the south of the state, where conservation units or priority areas for conservation are well established; and two in the north, a region in the state where little conservation efforts have been historically done. Therefore, based on our analyses on mayflies, we recommend the expansion of the existing APCs or the creation of new APCs on the north of Espírito Santo.

  10. Early embryonic development of the head region of Gryllus assimilis Fabricius, 1775 (Orthoptera, Insecta).

    Science.gov (United States)

    Liu, Yu; Maas, Andreas; Waloszek, Dieter

    2010-09-01

    We report our investigations on the embryonic development of Gryllus assimilis, with particular attention to the head. Significant findings revealed with scanning electron microscopy (SEM) images include: (1) the pre-antennal lobes represent the anterior-most segment that does not bear any appendages; (2) each of the lobes consists of central and marginal regions; (3) the central region thereof develops into the protocerebrum and the optic lobes, whereas the marginal region thereof becomes the anterior portion of the head capsule; (4) the initial position of the antennal segment is posterior to the mouth region; (5) appendage anlagen are transitorily present in the intercalary segment, and they later vanish together with the segment itself; (6) a bulged sternum appears to develop from the ventral surface of the mandibular, maxillary and labial segments. Embryonic features are then compared across the Insecta and further extended to the embryos of a spider (Araneae, Chelicerata). Striking similarities shared by the anterior-most region of the insect and spider embryos lead the authors to conclude that such comparison should be further undertaken to cover the entire Euarthropoda. This will help us to understand the embryology and evolution of the arthropod head. Copyright © 2010 Elsevier Ltd. All rights reserved.

  11. Hymenopteran parasitoids associated with the banana-skipper Erionota thrax L. (Insecta: Lepidoptera, Hesperiidae in Java, Indonesia

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    ERNIWATI

    2011-04-01

    Full Text Available Erniwati, Ubaidillah R (2011 Hymenopteran parasitoids associated with the banana-skipper Erionota thrax L. (Insecta: Lepidoptera, Hesperiidae in Java, Indonesia. Biodiversitas 12: 76-85. Hymenopteran parasitoids of banana-skipper Erionota thrax L. (Insecta: Lepidoptera, Hesperiidae from Java, Indonesia are reviewed and an illustrated key to 12 species is presented to include Theronia zebra zebra, Xanthopimpla gamsura, Casinaria sp., Charops sp., Cotesia (Apanteles erionotae, Brachymeria lasus, B. thracis, Ooencyrtus pallidipes, Anastatus sp., Pediobius erionotae, Agiommatus sumatraensis and Sympiesis sp. The surveys of the natural enemies of the banana-skipper were conducted in 1990-2006 in several localities in Java. The aim of this study was to assess the native natural enemies of E. thrax, especially the parasitic Hymenoptera. Infested eggs, larvae and pupae of E. thrax were collected and reared in the laboratory. Emerging parasitoids were preserved in both dry mounting and in 80% alcohol for the species identification. Members of families Braconidae, Ichneumonidae, Encyrtidae, Pteromalidae, Chalcididae, Eupelmidae and Eulophidae were recorded as parasitoids of the banana skipper E. thrax from Java, Indonesia. Species distribution and alternative hosts of the parasitoids are presented.

  12. Nuevos Zygoptera y Anisoptera (Insecta: Odonata en el Cretácico inferior de España

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    Martínez-Delclos, X.

    1993-12-01

    Full Text Available The study of sorne new Cretaceous insects found in the lithographic limestones outcrops of Spain has led to the recognition of three new forms of odonates (Insecta, üdonata. Nymphs of Zygoptera of the type-genus Samarura have been found, which have alredy been recognized in other outcrops in the world. Hoyaeshna cretacica n.gen. and n.sp. (Aeshnidae, Gomphaeshninae is described. This new species presents a psScP vein which begins in the nodus and follows partially the postnodal field, replacing the path that in sorne odonate groups the ScP vein realizes, as for example, in the Zygoptera Sieblosidae and in the Anisoptera Aeschnidiidae.El estudio de nuevos insectos cretácicos hallados en los yacimientos de calizas litográficas españoles ha dado como resultado el reconocimiento de tres nuevas formas de odonatos (Insecta, Odonata. Se han encontrado larvas de Zygoptera del género-tipo Samarura, ya reconocidas en otros yacimientos mundiales, y larvas de anisópteros Libelluloidea en los yacimientos mesozoicos españoles. Se describe Hoyaeshna cretacica n. gen y n. sp. (Aeshnidae Gomphaeschninae. Esta nueva especie presenta una vena psScP que nace en el nodo y recorre parcialmente el campo postnodal supliendo el recorrido que en algunos grupos de odonatos realiza la ScP, por ejemplo, en los Zygoptera Sieblosidae y en los Anisoptera Aeschnidiidae.

  13. Coleópteros de Colombia: 50 Especies llamativas (Insecta: Coleoptera Un Manual Educativo. Pág. 205-208

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    Maritza Yurieth García Montes

    2013-03-01

    Full Text Available Coleópteros de Colombia- 50 especies llamativas (Insecta: Coleoptera un manual educativo, se presenta como requisito parcial para optar al título de Licenciada en Biología de la UPN, y surge de la necesidad de iniciar programas de sensibilización y movilización frente a la Biota Colombiana, debido a la alta biodiversidad de Colombia, alto grado de amenaza y bajo conocimiento de las especies (Humboldt, 1995. Como docentes, sabemos que la conservación de la biodiversidad es un desafío para la comunidad educativa, y que se requieren más trabajos, que promuevan conocimientos y valores apropiados frente a los recursos naturales. De allí, que el manual educativo, busque acercar a estudiantes, profesores de secundaria y público en general, al conocimiento, importancia y utilidad de los Coleópteros (Insecta: Coleoptera. Estableciéndose como una opción, en el proceso de enseñanza- aprendizaje de la biología, al combinar la investigación biológica y pedagógica alrededor de la escuela.

  14. Does the aggressiveness of the prey modify the attack behavior of the predator Supputius cincticeps (Stål (Hemiptera, Pentatomidae?

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    Rafael Braga da Silva

    2012-06-01

    Full Text Available Does the aggressiveness of the prey modify the attack behavior of the predator Supputius cincticeps (Stål (Hemiptera, Pentatomidae? The stink bug Supputius cincticeps (Stål (Hemiptera, Pentatomidae is a predator found in several Brazilian regions, which possesses desirable attributes as a natural control agent and in biological control programs. The aim of this study was to test if the attack behavior and predation success of S. cincticeps were affected by prey species. Larvae of Tenebrio molitor (L. (Coleoptera, Tenebrionidae, Spodoptera frugiperda (J. E. Smith (Lepidoptera, Noctuidae, and Thyrinteina arnobia (Stoll (Lepidoptera, Geometridae were offered to S. cincticeps in laboratory bioassays where predatory attack and prey defensive behaviors were observed for 2-hour periods. The attack behavior of S. cincticeps changed with the prey species offered. More than 25% of T. molitor and S. frugiperda larvae were immediately attacked, but T. arnobia was not immediately attacked by S. cincticeps. Successful attack (i.e., successful insertion of the predator stylets into the prey depends on the region of the body attacked, with a greater proportion of successful attacks in the anterior than in the median or posterior regions. Larvae of T. arnobia and S. frugiperda displayed a sequence of abrupt head and body movements in response to S. cincticeps attack. Attempts of predation were more successful on T. molitor and S. frugiperda than on T. arnobia. Information about the differential attack behavior of S. cincticeps on different prey species is important for designing successful biological control programs using this hemipteran predator.

  15. Evidence of environmental and vertical transmission of Burkholderia symbionts in the oriental chinch bug, Cavelerius saccharivorus (Heteroptera: Blissidae).

    Science.gov (United States)

    Itoh, Hideomi; Aita, Manabu; Nagayama, Atsushi; Meng, Xian-Ying; Kamagata, Yoichi; Navarro, Ronald; Hori, Tomoyuki; Ohgiya, Satoru; Kikuchi, Yoshitomo

    2014-10-01

    The vertical transmission of symbiotic microorganisms is omnipresent in insects, while the evolutionary process remains totally unclear. The oriental chinch bug, Cavelerius saccharivorus (Heteroptera: Blissidae), is a serious sugarcane pest, in which symbiotic bacteria densely populate the lumen of the numerous tubule-like midgut crypts that the chinch bug develops. Cloning and sequence analyses of the 16S rRNA genes revealed that the crypts were dominated by a specific group of bacteria belonging to the genus Burkholderia of the Betaproteobacteria. The Burkholderia sequences were distributed into three distinct clades: the Burkholderia cepacia complex (BCC), the plant-associated beneficial and environmental (PBE) group, and the stinkbug-associated beneficial and environmental group (SBE). Diagnostic PCR revealed that only one of the three groups of Burkholderia was present in ∼89% of the chinch bug field populations tested, while infections with multiple Burkholderia groups within one insect were observed in only ∼10%. Deep sequencing of the 16S rRNA gene confirmed that the Burkholderia bacteria specifically colonized the crypts and were dominated by one of three Burkholderia groups. The lack of phylogenetic congruence between the symbiont and the host population strongly suggested host-symbiont promiscuity, which is probably caused by environmental acquisition of the symbionts by some hosts. Meanwhile, inspections of eggs and hatchlings by diagnostic PCR and egg surface sterilization demonstrated that almost 30% of the hatchlings vertically acquire symbiotic Burkholderia via symbiont-contaminated egg surfaces. The mixed strategy of symbiont transmission found in the oriental chinch bug might be an intermediate stage in evolution from environmental acquisition to strict vertical transmission in insects. Copyright © 2014, American Society for Microbiology. All Rights Reserved.

  16. A checklist of sucking lice (Insecta: Phthiraptera: Anoplura) associated with Mexican wild mammals, including geographical records and a host-parasite list.

    Science.gov (United States)

    Sánchez-Montes, Sokani; Guzmán-Cornejo, Carmen; León-Paniagua, Livia; Rivas, Gerardo

    2013-01-01

    A checklist of 44 species of sucking lice (Insecta: Phthiraptera: Anoplura) recorded in Mexico, belonging to nine genera in six families is given, together with a list of the 63 species of Mexican wild mammal hosts with which they are associated. Summaries of the known geographical records and host relationships for each louse species are presented for each Mexican state. Data were compiled from published and original records, including three new locality records from the states of Oaxaca and Guerrero.

  17. Notas sobre la presencia de siálidos (Insecta: Sialidae en la cuenca del río Ebro (España = Notes on the presence of Sialidae (Insecta: Sialidae in the Ebro River Basin (Spain

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    J. Oscoz, A. Agorreta, C. Durán

    2005-01-01

    Full Text Available Muestreos de macroinvertebrados en diferentes ríos de la cuenca del Ebro (España aportaron capturas de larvas de siálidos (Insecta: Megaloptera: Sialidae que fueron clasificadas como tres especies (Sialis fuliginosa, Sialis lutaria y Sialis nigripes de las cuales se muestra el mapa de presencia en la cuenca del Ebro. Las tres especies se encontraron en general en tramos de cabecera o ríos de montaña con aguas de calidad "Muy Buena" o "Buena" según el índice biótico IBMWP, si bien dicha distribución podría estar influida por otros factores limitantes diferentes a la necesidad de una alta calidad en las aguas.

  18. Taxonomic Review of the Caudatella heterocaudata (McDunnough and C. hystrix (Traver Complexes (Insecta: Ephemeroptera: Ephemerellidae

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    Luke M. Jacobus

    2010-01-01

    Full Text Available Caudatella columbiella (McDunnough, 1935, new combination, (Insecta: Ephemeroptera: Ephemerellidae is removed from synonymy with Caudatella heterocaudata (McDunnough, 1929, and a new junior synonym is recognized, based on comparative examination of type material and larval exuviae associated with adults from the type locale of C. columbiella (=C. californica (Allen and Edmunds, 1961, new status, new synonym. Caudatella circia (Allen and Edmunds, 1961, new status, is recognized as a strict specific synonym of C. heterocaudata (McDunnough, 1929 (=C. circia (Allen and Edmunds, 1961, new synonym. A neotype is designated for Caudatella hystrix (Traver, 1934, based on a specimen collected in Western Montana, USA, during June 2000. Morphological differences between the type specimen of C. hystrix and the type specimens of its two junior synonyms, Ephemerella cascadia Allen and Edmunds, 1961, and E. spinosa Mayo, 1952, are detailed. An identification key for larvae of the genus Caudatella is included.

  19. Intraspecific variation and population structure of the Velvetbean Caterpillar, Anticarsia gemmatalis Hübner, 1818 (Insecta: Lepidoptera: Noctuidae

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    Daniel R. Sosa-Gómez

    2004-01-01

    Full Text Available The velvetbean caterpillar (VBC, Anticarsia gemmatalis Hübner, 1818 (Insecta: Lepidoptera: Noctuidae, is one of the most important New World soybean agro-ecosystems pests, occurring from 40° N in the USA to 39° S in Argentina. Information on the migration patterns of the VBC moth may be important for managing the resistance of VBC populations to insecticides or plants carrying the Bacillus thuringiensis insecticide genes, especially since sedentary populations have a higher potential to became resistant than migratory populations. We studied intraspecific variations of geographically distinct VBC populations in order to determine the genetic distance between them and to assess the variability of VBC populations from near the city of Londrina (Paraná (PR state, Brazil. Samples of the VBC were obtained from sites near the following towns or cities: Marianna and Quincy (Florida, USA; La Virginia (Tucumán province, Argentina; Londrina (PR, Passo Fundo (Rio Grande do Sul, Brazil and Planaltina (Goiás, Brazil. The VBC samples were used to construct a genetic similarity matrix based on random amplified polymorphic DNA (RAPD allele frequencies, the cotton leafworm, Alabama argillacea, Hübner 1823 (Insecta: Lepidoptera: Noctuidae, being used as an outgroup. Interestingly, despite the great distance (about 6,500 km between Planaltina and Quincy some of the specimens from the Quincy population clustered in a group genetically close to the Planaltina populations. Larvae collected on peanuts in Marianna and on soybean in Quincy, 70 km apart, appeared genetically similar. The population from Planaltina was the most heterogeneous (polymorphism = 85.6%; heterozygosity = 0.1505. The Argentinean VBC population was entirely different from the Brazilian populations. The genetic similarities found between individuals from geographically distant populations and effective migration rate values (2.0566 > Nm < 15.2618 indicate that migration occurs.

  20. Effects of natural phenomena and human activity on the species richness of endemic and non-endemic Heteroptera in the Canary Islands

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    Vargas, J. M.

    2004-12-01

    Full Text Available The geographical patterns of Heteroptera species diversity in the Canary Islands were analysed, and endemic and non–endemic species were studied both together and separately. Causal processes most likely controlling these patterns, as well as the theory of island biogeography, hypotheses about evolutionary time, habitat heterogeneity, climatic stability, intermediate disturbances, energy, environmental favourableness–severity, productivity and human influence were investigated. The combination of habitat heterogeneity and human influence accounted for the total number of species. However, when endemic and non–endemic species were analysed separately, habitat heterogeneity and favourableness–severity explained the richness of endemic species, whereas habitat heterogeneity and human influence explained that of non–endemic species.

  1. Duração do período ninfal e sobrevivência do predador Podisus connexivus Bergroth (Hemiptera, Pentatomidae, em três presas alternativas Ninfal period duration and survival of the predator Podisus connexivus Bergroth (Hemiptera, Pentatomidae, in three alternative preys

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    José Cola Zanuncio

    1993-01-01

    Full Text Available Longevity and survival of the predator Podisus connexivus (Hemiptera: Pentatomidae were studied in three alternative preys: T1 - Bombyx mori (Lepidoptera, Bombycidae catterpilars; T2 - Musca domestica (Diptera, Muscidae larva and T3 - Tenebrio molitor (Coleoptera, Tenebrionidae larva. Longevity and survival were: 22,1±0,6 days and 54,3±5,3%; 25,2±1,3 days and 56,0±4,9% and 22,0±0,8 days and 34,6±8,6%, for treatments T1, T2 and T3, respectively. Comparing to other researches, a lower survival was found. This is probably because a F2 generation from field material, was used. Since the insect was not well adapted to the laboratory conditions this could have led to lower survival.

  2. Compositional and mutational rate heterogeneity in mitochondrial genomes and its effect on the phylogenetic inferences of Cimicomorpha (Hemiptera: Heteroptera).

    Science.gov (United States)

    Yang, Huanhuan; Li, Teng; Dang, Kai; Bu, Wenjun

    2018-04-18

    Mitochondrial genome (mt-genome) data can potentially return artefactual relationships in the higher-level phylogenetic inference of insects due to the biases of accelerated substitution rates and compositional heterogeneity. Previous studies based on mt-genome data alone showed a paraphyly of Cimicomorpha (Insecta, Hemiptera) due to the positions of the families Tingidae and Reduviidae rather than the monophyly that was supported based on morphological characters, morphological and molecular combined data and large scale molecular datasets. Various strategies have been proposed to ameliorate the effects of potential mt-genome biases, including dense taxon sampling, removal of third codon positions or purine-pyrimidine coding and the use of site-heterogeneous models. In this study, we sequenced the mt-genomes of five additional Tingidae species and discussed the compositional and mutational rate heterogeneity in mt-genomes and its effect on the phylogenetic inferences of Cimicomorpha by implementing the bias-reduction strategies mentioned above. Heterogeneity in nucleotide composition and mutational biases were found in mt protein-coding genes, and the third codon exhibited high levels of saturation. Dense taxon sampling of Tingidae and Reduviidae and the other common strategies mentioned above were insufficient to recover the monophyly of the well-established group Cimicomorpha. When the sites with weak phylogenetic signals in the dataset were removed, the remaining dataset of mt-genomes can support the monophyly of Cimicomorpha; this support demonstrates that mt-genomes possess strong phylogenetic signals for the inference of higher-level phylogeny of this group. Comparison of the ratio of the removal of amino acids for each PCG showed that ATP8 has the highest ratio while CO1 has the lowest. This pattern is largely congruent with the evolutionary rate of 13 PCGs that ATP8 represents the highest evolutionary rate, whereas CO1 appears to be the lowest. Notably

  3. Qualidade da semente e senescência de genótipos de soja sob dois níveis de infestação de percevejos (Pentatomidae Quality of seeds and senescence of soybean genotypes under two levels of bugs infestation (Pentatomidae

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    Paulo Rogério Lustosa

    1999-08-01

    Full Text Available Este trabalho objetivou estudar a resistência de duas linhagens de soja, do programa de melhoramento do sabor da Universidade Federal de Viçosa, MG, cultivadas sob dois níveis de infestação de percevejos, em comparação com três cultivares de soja. Os genótipos estudados foram: CR-1, CR-3, Cristalina (linhagem paterna, Davis (padrão de suscetibilidade e IAC-100 (padrão de resistência. CR-1, CR-3, Davis e Cristalina, sob baixa infestação, produziram porcentagens de sementes normais semelhantes entre si (57%, e inferiores às de IAC-100 (77%. Sob alta infestação, CR-1, CR-3 e Cristalina produziram percentagens de sementes normais semelhantes entre si (22% e inferiores às de Davis (43% e IAC-100 (59%. Todos os genótipos apresentaram baixo grau de retenção foliar (menos que 6% quando cultivados sob baixa infestação, mas sob alta infestação, a CR-1 e IAC-100 apresentaram menores porcentagens de retenção foliar (menos que 5%, seguida por Davis e CR-3 (6-20% e Cristalina (21-40%. CR-1, IAC-100 e Davis não apresentaram plantas com caule verde sob baixa infestação, ao contrário do que foi registrado com CR-3 (3,6% e Cristalina (11%. IAC-100, CR-1 e Davis apresentaram menores porcentagens de plantas com caule verde (6,4, 10,3 e 18,3%, respectivamente que CR-3 (64,8% e Cristalina (77,3%.The objective of this research was to evaluate the genotypes CR-1 and CR-3, from the genetic improvement program of soybean flavor of the Federal University of Viçosa, in Viçosa, MG, Brazil, under two levels of Heteroptera infestation. The genotypes tested were CR-1, CR-3, Cristalina, Davis (susceptible genotype and IAC-100 (resistant genotype. The genotypes CR-1, CR-3, Davis and Cristalina under low level of infestation (2.8 Heteroptera/beating produced similar percentage of normal seeds (57% but inferior to the genotype IAC-100 (77%. Under high level of infestation (6.42 Heteroptera/beating, the genotypes CR-1, CR-3 and Cristalina produced

  4. Sublethal effects of diazinon, fenitrothion and chlorpyrifos on the functional response of predatory bug, Andrallus spinidens Fabricius (Hem.: Pentatomidae in the laboratory conditions

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    Moloud GholamzadehChitgar

    2014-04-01

    Full Text Available The sublethal effects of diazinon, fenitrothion and chlorpyrifos on the functional response of predatory bug, Andrallus spinidens Fabricius (Hem.: Pentatomidae, a potential biological control agent, were studied on 5th-instar nymphs. The experiment was conducted in varying densities (2, 4, 8, 16, 32 and 64 of last instars larvae of Chilo suppressalis Walker (Lepidoptera: Pyralidae as prey at 25 ± 2 °C, 60% ± 10% relative humidity (RH and a photoperiod of 16:8 h (L: D. The results of logistic regressions revealed a type II functional response in the control and all insecticide treatments. Comparison of functional response curves revealed that tested insecticides markedly decreased the mean of preys consumed by A. spinidens. Among them, functional response curve of A. spinidens in chlorpyrifos treatment was significantly lower than the other treatments. In this study, application of insecticides caused a decrease in the attack rate and an increase in the handling time of exposed bugs compared with the control. The longest handling time (3.97 ± 0.62 and the lowest attack rate (0.023 ± 0.007 were observed in chlorpyrifos and fenitrothion treatments, respectively. The results suggested that the adverse effect of these insecticides on A. spinidens should be considered in integrated pest management programs (IPM.

  5. Linking Life Table and Predation Rate for Biological Control: A Comparative Study of Eocanthecona furcellata (Hemiptera: Pentatomidae) Fed on Spodoptera litura (Lepidoptera: Noctuidae) and Plutella xylostella (Lepidoptera: Plutellidae).

    Science.gov (United States)

    Tuan, Shu-Jen; Yeh, Chih-Chun; Atlihan, Remzi; Chi, Hsin

    2016-02-01

    To better understand the predator-prey relationship and to compare predation rates, we studied the life table and predation rate of the predator Eocanthecona furcellata Wolff (Hemiptera: Pentatomidae) when reared on two major crucifer pests, Spodoptera litura (F.) (Lepidoptera: Noctuidae) and Plutella xylostella L. (Lepidoptera: Plutellidae). The net reproductive rate, intrinsic rate of increase, finite rate, and net predation rates of E. furcellata reared on P. xylostella were 292.4 offspring, 0.1389 d(-1), 1.1490 d(-1), and 644.1 third instars of P. xylostella, respectively. These values are significantly higher than those reared on S. litura, i.e., 272.3 offspring, 0.1220 d(-1), 1.1298 d(-1), and 863.1 third instars of S. litura. To evaluate the predation potential of E. furcellata fed on P. xylostella and S. litura, we combined both the growth rate and predation rate to calculate the finite predation rate (ω); our results showed that E. furcellata is an effective predator of both S. litura (ω = 1.6029) and P. xylostella (ω = 1.4277). © The Authors 2015. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  6. Morphology of olfactory sensilla and its role in host plant recognition by Neomegalotomus parvus (Westwood (Heteroptera: Alydidae

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    Maurício Ursi Ventura

    2005-07-01

    Full Text Available The external morphology of the sensilla, including pores and permeable points on the cuticle of the antennae of adults of Neomegalotomus parvus (West. (Heteroptera: Alydidae was investigated with regard to their olfactory function. Behavioural evidence of olfaction, the importance of the different antennal segments in locating the host under still-air, and the responses of the insects to plants' scents and to pheromones in wind assays were also studied. With the scanning electronic microscope mechanoreceptor sensilla were found on the four segments of the antennae of N. parvus. The density of the sensilla was greater on the 4th segment. On the apical segment, sensilla with olfactory morphological traits were observed. Bugs with intact antennae located food more frequently and faster than those with blocked or amputated antennae. N. parvus preferred intact seeds to sealed seeds, but there was no preference when the last segment of the antenna was blocked. In wind tunnel, bugs were attracted to mature and green pods, and to hexanic extract of mature pods of pigeon pea, Cajanus cajan (L. Millsp.; there was no response to panicles of rice, Oryza sativa L. or to the male pheromone.A morfologia externa dos sensilos de adultos de Neomegalotomus parvus (Westw. (Het.: Alydidae, incluindo poros e pontos permeáveis na cutícula, foi estudada em microscópio eletrônico de varredura, em relação à função olfativa. A evidência comportamental do olfato e a importância dos diferentes segmentos antenais na localização do hospedeiro, em condições de ausência de movimentação do ar, foram também estudados. Sensilos mecanoreceptores foram observados nos quatro segmentos da antena de N. parvus, sendo no entanto, a densidade maior no quarto segmento. Nos segmentos apicais, foram observados sensilos com características morfológicas olfativas. Percevejos com antenas intactas localizaram o alimento com mais freqü��ncia e rapidez do que aqueles com

  7. What is the phylogenetic signal limit from mitogenomes? The reconciliation between mitochondrial and nuclear data in the Insecta class phylogeny

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    Talavera Gerard

    2011-10-01

    Full Text Available Abstract Background Efforts to solve higher-level evolutionary relationships within the class Insecta by using mitochondrial genomic data are hindered due to fast sequence evolution of several groups, most notably Hymenoptera, Strepsiptera, Phthiraptera, Hemiptera and Thysanoptera. Accelerated rates of substitution on their sequences have been shown to have negative consequences in phylogenetic inference. In this study, we tested several methodological approaches to recover phylogenetic signal from whole mitochondrial genomes. As a model, we used two classical problems in insect phylogenetics: The relationships within Paraneoptera and within Holometabola. Moreover, we assessed the mitochondrial phylogenetic signal limits in the deeper Eumetabola dataset, and we studied the contribution of individual genes. Results Long-branch attraction (LBA artefacts were detected in all the datasets. Methods using Bayesian inference outperformed maximum likelihood approaches, and LBA was avoided in Paraneoptera and Holometabola when using protein sequences and the site-heterogeneous mixture model CAT. The better performance of this method was evidenced by resulting topologies matching generally accepted hypotheses based on nuclear and/or morphological data, and was confirmed by cross-validation and simulation analyses. Using the CAT model, the order Strepsiptera was recovered as sister to Coleoptera for the first time using mitochondrial sequences, in agreement with recent results based on large nuclear and morphological datasets. Also the Hymenoptera-Mecopterida association was obtained, leaving Coleoptera and Strepsiptera as the basal groups of the holometabolan insects, which coincides with one of the two main competing hypotheses. For the Paraneroptera, the currently accepted non-monophyly of Homoptera was documented as a phylogenetic novelty for mitochondrial data. However, results were not satisfactory when exploring the entire Eumetabola, revealing the

  8. Species of thrips (Insecta, Thysanoptera in two strawberry production systems in Rio Grande do Sul State, Brazil

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    Silvia M. J. Pinent

    2011-09-01

    Full Text Available Species of thrips (Insecta, Thysanoptera in two strawberry production systems in Rio Grande do Sul, Brazil. Thrips are tiny insects responsible for the reduction of strawberry fruit quality. The work aimed to record and quantify the thysanopterofauna present in two strawberry production systems, low tunnel and semi-hydroponic. Leaves, flowers and fruits were collected weekly, from July 2005 to December 2006 in Caxias do Sul and Bom Princípio municipalities, RS. A total of 664 individuals were collected, representing two families, four genus and 10 species: Frankliniella occidentalis (Pergande, 1895, F. schultzei (Trybom, 1910, F. rodeos Moulton, 1933, F. simplex (Priesner, 1924, F. williamsi (Hood, 1915, F. gemina (Bagnall, 1919, Frankliniella sp., Thrips tabaci (Lindeman, 1888, Thrips tabaci (Lindeman, 1888, Caliothrips fasciatus (Pergande 1895 from Thripidae and Heterothrips sp. from Heterothripidae. Frankliniella occidentalis represented 89.7% of the samples with 95.8% of the species collected in flowers, 3.9% in fruits and 0.8% in leaves. The results show that flowers are the most important food resource for these insects on strawberry plants. Frankliniella rodeos, F. simplex, F. williamsi, C. fasciatus, and Heterothrips sp. are new records on strawberry for Brazil.

  9. Catalase activity in Smicridea McLachlan, 1871 (Insecta, Trichoptera collected from natural and altered/impacted streams

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    Cristiane Biasus

    2015-06-01

    Full Text Available Aim: We compare catalase activity in SmicrideaMcLachlan, 1871 (Insecta, Trichoptera collected in natural and agricultural streams and correlates the enzyme pattern with metal content in the water.MethodsOrganisms were collected in sites classified as natural (riparian vegetation in buffer zone and altered/impacted (agricultural land use in drainage area environments, located at Cravo River and Campo River sub-basins (RS, Brazil. Next the collected larvae were identified and used to proteins quantification and catalase activity measure. The concentration of Mg, Cr, Cu, Pb and Cd in the water was determined by atomic absorption spectrometry.ResultsCatalase activity in Smicridea ranged from 1.5 to 6 U, with mean values about 2.63 ± 0.096 U (SEM. The presence of metals was higher in the streams located at agricultural drainage area, except for Mg at the Cravo sub-basin and Cu at the Campo sub-basin. Catalase was higher in Smicridea collected in natural streams as compared to that agriculture streams and was correlated with Pb and Cd levels.ConclusionsThe data showed the potential of this biomarker as a useful tool for complementation of water quality biomonitoring studies using Smicridea as bioindicator.

  10. Investigations on the aquatic Coleoptera (Classis: Insecta fauna of some mountain lakes in the eastern Black Sea range (Turkey.

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    Esat Tarık Topkara

    2015-12-01

    Full Text Available Doğu Karadeniz dağ silsilesindeki bazı dağ göllerinin sucul Coleoptera (Classis: Insecta faunası üzerine araştırmalar. Doğu Karadeniz (Türkiye dağ silsilesindeki yüksek dağ göllerinin sucul Coleoptera faunasını belirlemek amacıyla yapılan bu araştırma, 2005-2007 yıllarında Temmuz ve Ağustos aylarında 22 gölde gerçekleştirilmiştir. Örneklemeler göllerin littoral bölgesinde ve el kepçeleri kullanılarak yapılmıştır. Toplanan örneklerin taksonomik açıdan incelenmesiyle, 4 familyaya ait 21 takson (Dytiscidae 11, Helophoridae 7, Hydraenidae 2, Elmidae 1 tespit edilmiştir

  11. Temporal and Directional Patterns of Nymphal Halyomorpha halys (Hemiptera: Pentatomidae) Movement on the Trunk of Selected Wild and Fruit Tree Hosts in the Mid-Atlantic Region.

    Science.gov (United States)

    Acebes-Doria, Angelita L; Leskey, Tracy C; Bergh, J Christopher

    2017-04-01

    Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) is an invasive and polyphagous herbivore that has been problematic in Mid-Atlantic fruit orchards, many of which are adjacent to woodlands containing its wild hosts. Our tree census in woodlands bordering 15 Mid-Atlantic apple orchards revealed 47 species of deciduous trees and shrubs, 76.6% of which were recorded hosts of H. halys. Tree of heaven was most common and abundant overall. Halyomorpha halys nymphs have a substantial walking dispersal capacity, and their fitness is enhanced by feeding on multiple hosts. Directional and temporal patterns of nymphal H. halys movement on selected wild hosts and apple and peach trees at the orchard-woodland interface were monitored in 2014 and 2015 using passive traps to capture nymphs walking up and down tree trunks. Weekly captures from mid-May to late September or mid-October were compared among hosts across both seasons. Despite higher total nymphal captures in 2014 than 2015, the seasonal trends for both years were similar and indicated bivoltine H. halys populations. In both years, more nymphs were intercepted while walking up than down and captures of upward- and downward-walking nymphs varied significantly among the hosts. All instars were captured, but captures of second instars predominated. Captures reflected seasonal changes in instar distribution and consisted predominantly of younger and older nymphs, early and later in the season, respectively. Results are discussed in relation to host and seasonal effects on the movement of nymphs at the orchard-woodland interface, and the implications for H. halys management. © The Authors 2017. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  12. Milkweed (Gentianales: Apocynaceae): a farmscape resource for increasing parasitism of stink bugs (Hemiptera: Pentatomidae) and providing nectar to insect pollinators and monarch butterflies.

    Science.gov (United States)

    Tillman, P G; Carpenter, J E

    2014-04-01

    In peanut-cotton farmscapes in Georgia, the stink bugs Nezara viridula (L.) and Chinavia hilaris (Say) (Hemiptera: Pentatomidae) and the leaffooted bug, Leptoglossus phyllopus (L.) (Hemiptera: Coreidae), disperse at crop-to-crop interfaces to feed on bolls in cotton. The main objective of this study was to determine whether insecticide-free tropical milkweed (Asclepias curassavica L.), a nectar-producing plant, can increase parasitism of these bugs by Trichopoda pennipes (F.) (Diptera: Tachinidae) and provide nectar to monarch butterflies and insect pollinators in these farmscapes. Peanut-cotton plots with and without flowering milkweed plants were established in 2009 and 2010. Adult T. pennipes, monarch butterflies, honey bees, and native insect pollinators readily fed on floral nectar of milkweed. Monarch larvae feeding on milkweed vegetation successfully developed into pupae. In 2009, N. viridula was the primary host of T. pennipes in cotton, and parasitism of this pest by the parasitoid was significantly higher in milkweed cotton (61.6%) than in control cotton (13.3%). In 2010, parasitism of N. viridula, C. hilaris, and L. phyllopus by T. pennipes was significantly higher in milkweed cotton (24.0%) than in control cotton (1.1%). For both years of the study, these treatment differences were not owing to a response by the parasitoid to differences in host density, because density of hosts was not significantly different between treatments. In conclusion, incorporation of milkweed in peanut-cotton plots increased stink bug parasitism in cotton and provided nectar to insect pollinators and monarch butterflies.

  13. No impact of Bt soybean that express Cry1Ac protein on biological traits of Euschistus heros (Hemiptera, Pentatomidae and its egg parasitoid Telenomus podisi (Hymenoptera, Platygastridae

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    Gabriela Vieira Silva

    2014-09-01

    Full Text Available No impact of Bt soybean that express Cry1Ac protein on biological traits of Euschistus heros (Hemiptera, Pentatomidae and its egg parasitoid Telenomus podisi (Hymenoptera, Platygastridae. Biological traits of the stink bug Euschistus heros and its main biological control agent Telenomus podisi were evaluated under controlled environmental conditions (25 ± 2ºC; 60 ± 10% RH; and 14/10 h photoperiod by placing first instar nymphs into Petri dishes with pods originating from two soybean isolines (Bt-soybean MON 87701 × MON 89788, which expresses the Cry1Ac protein, and its near non-Bt isoline A5547 where they remained until the adult stage. Due to gregarious behavior exhibited by first instar nymphs, they were individualized only when at the second instar. Adults were separated by sex and weighed, and pronotum width of each individual was subsequently measured. They were placed into plastic boxes containing soybean grains of the same soybean isoline as food source. Egg viability and female fecundity were assessed in adult individuals. Adult females of T. podisi (up to 24h old were placed with eggs of E. heros from mothers reared on both soybean isolines. Nymphal development time, insect weight, pronotum width, sex ratio, female fecundity, and egg viability (% emergence of Euschistus heros did not differ between treatments. Eggto-adult development time, female longevity, sex ratio, and percentage of parasitized eggs were not impacted by the Bt-soybean (expressing Cry1Ac protein. Results indicate that the Bt-soybean, MON 87701 × MON 89788, has no direct significant impact on the two studied species.

  14. Climate Change Impacts on the Potential Distribution and Abundance of the Brown Marmorated Stink Bug (Hemiptera: Pentatomidae) With Special Reference to North America and Europe.

    Science.gov (United States)

    Kistner, Erica Jean

    2017-12-08

    The invasive brown marmorated stink bug, Halyomorpha halys (Stål; Hemiptera: Pentatomidae), has recently emerged as a harmful pest of horticultural crops in North America and Europe. Native to East Asia, this highly polyphagous insect is spreading rapidly worldwide. Climate change will add further complications to managing this species in terms of both geographic distribution and population growth. This study used CLIMEX to compare potential H. halys distribution under recent and future climate models using one emission scenario (A2) with two different global circulation models, CSIRO Mk3.0 and MIROC-H. Simulated changes in seasonal phenology and voltinism were examined. Under the possible future climate scenarios, suitable range in Europe expands northward. In North America, the suitable H. halys range shifts northward into Canada and contracts from its southern temperature range limits in the United States due to increased heat stress. Prolonged periods of warm temperatures resulted in longer H. halys growing seasons. However, future climate scenarios indicated that rising summer temperatures decrease H. halys growth potential compared to recent climatic conditions, which in turn, may reduce mid-summer crop damage. Climate change may increase the number of H. halys generations produced annually, thereby enabling the invasive insect to become multivoltine in the northern latitudes of North America and Europe where it is currently reported to be univoltine. These results indicate prime horticultural production areas in Europe, the northeastern United States, and southeastern Canada are at greatest risk from H. halys under both current and possible future climates. Published by Oxford University Press on behalf of Entomological Society of America 2017. This work is written by (a) US Government employee(s) and is in the public domain in the US.

  15. Efficacy of insecticide residues on adult Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) mortality and injury in apple and peach orchards.

    Science.gov (United States)

    Leskey, Tracy C; Short, Brent D; Lee, Doo-Hyung

    2014-07-01

    The primary threat from Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) originates from populations continuously dispersing from and among wild and cultivated hosts, so many individuals may not be directly sprayed with insecticides. Limited information exists regarding field-based residual activity of insecticides for management of H. halys in tree fruit. Thus, we conducted field-based bioassays in apple and peach orchards to evaluate residual activity of insecticides commonly applied against H. halys. Adults used in these trials were collected from wild and cultivated hosts less than one week prior to testing to more accurately reflect the susceptibility of wild H. halys populations in the field throughout the season. Significantly higher mortality rates of Halyomorpha halys were observed early in the growing season, when overwintered adults were prevalent, compared with populations present later in the growing season that included new generation adults. Significantly higher mortality was recorded for adults exposed to fresh insecticide applications compared with three- and seven-day old residues. Typically, the addition of an adjuvant did not enhance efficacy or residual activity of insecticides. Significantly fewer injury sites were recorded on apples treated with dinotefuran and fenpropathrin compared with the untreated apples for all residue ages. Overwintered Halyomorpha halys populations are easier to kill with insecticide applications than the first and second generation which are present in the field during the mid- to late-season. Residual activity of nearly all insecticides decreased significantly three days after application and adjuvants generally did not increase residual activity. These factors should be considered in developing season-long programs for management of this invasive species in tree fruit. © 2013 Society of Chemical Industry.

  16. Biology, behaviour and functional response of Cydnocoris gilvus Brum. (Heteroptera: Reduviidae: Harpactorinae a predator of Tea Mosquito Bug (Helopeltis antonii Sign. on cashew in India

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    K.K. Srikumar

    2014-06-01

    Full Text Available Helopeltis spp. (Hemiptera: Miridae are major sucking pests of cashew (Anacardium occidentale L. in India. Cydnocoris gilvus Brum. (Heteroptera: Reduviidae: Harpactorinae is recorded as a potential predator of Helopeltis spp. Biology, mating behaviour and functional response of C. gilvus were studied by rearing in the laboratory (temperature 26-28 0C; relative humidity 89-94 % with wax moth, Galleria mellonella, larvae. Based on laboratory rearing, the fecundity was 56.33 eggs in 8.67 batches per female. The average stadial period was 37.3 days, with a maximum of 11 days for V instar and a minimum of 4.5 days for III instars. C. gilvus took 45.5 days to complete a generation. The innate capacity of natural increase was 0.07 with a gross reproduction of 67.8 females per female. The adult exhibited a pin and jab mode of predation in a sequence of actions. The sequential action of mating comprised arousal (1.32 min, approach (12.30 min, riding over (140.48 min and copulation (85.40 min. The predator responded to increasing prey density by killing more prey than at lower prey densities

  17. Diversidade de Larvas de Leptophlebiidae (Insecta: Ephemeroptera da Reserva Florestal Adolpho Ducke, Manaus, AM.

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    Claudio Rabelo dos Santos-Neto

    2008-03-01

    é fornecendo substrato estável (vegetação marginal e folhiço para a manutenção da fauna. No período chuvoso o substrato é carreado pelas enxurradas não sendo possível � manutenção da fauna.Diversity of Larve Leptophlebiidae (Insecta: Ephemeroptera of the Adolpho Ducke Forest Reserve, Manaus, AM.Abstract. The Adolpho Ducke Forest Reserve (ADRF is a fragment of 10.000 hectares in geographic conflict with the city of Manaus. The knowledge of the diversity of Ephemeroptera in the ADRF is essencial because these organisms are biological important elements as food source and for its potential as indicative of the human disturbances. The objective of this study was to develop a survey of the diversity of Leptophlebiidae from two basins of ADRF, comparing the diversity between basins and the dry and rainy periods 38 points were collected from streams of the Eastern (Ipiranga, Uberê and Tinga and Western (Acará and Bolivia ADRF basins with aquatic entomological net (rapiché. To verify differences in the wealth of the two basins and to compare the wealth in the dry and rainy periods it was utilized the Jackknife wealth index. It was colleded 804 larvae of Leptophlebiidae, being identified 368 individuals from seven genera: Hagenulopsis Ulmer (35%; n=128; Thraulodes Ulmer (34%; n=124; Farrodes Peters (13%; n=48; Miroculis Edmunds Jr (12%; n=45; Hydrosmilodon Flowers & Dominguez (5%; n=19; Hermanella Needham & Murphy (0.8%; n=3, Microphlebia Savage & Peters (n=1. It represents the first register of Hydrosmilodon, Hermanella and Microphlebia for the ADRF. In the comparison between the basins East and West, the Jackknife’s did not indicate significant difference in the wealth of genera. Hermanella and Hydrosmilodon had not occurred in the West basin and, Microphlebia did not occurred in the East basin, however these absences does not represent significant difference in the taxonomic wealth of the basins. The comparison in the wealth of species of Leptophlebiidae

  18. First report on trichomonads from true bugs

    Czech Academy of Sciences Publication Activity Database

    Smejkalová, P.; Votýpka, Jan; Lukeš, Julius; Čepička, I.

    2014-01-01

    Roč. 61, č. 3 (2014), s. 189-194 ISSN 0015-5683 Institutional support: RVO:60077344 Keywords : Parabasalia * intestinal endosymbionts * Simplicimonas * Monocercomonas * phylogeny * SSU rDNA * Heteroptera * Insecta * host-parasite association Subject RIV: EG - Zoology Impact factor: 1.147, year: 2014

  19. Biological control agents (Arthropoda - Insecta associated with cultivation of the sugar apple (Annona squamosa L. = Agentes de controle biológico (Arthropoda - Insecta associados ao cultivo da pinha (Annona squamosa L.

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    Laise Malaspina Rossi

    2017-03-01

    Full Text Available Knowledge of biological control agents occurring naturally in agricultural areas is of great importance in adopting methods of integrated pest management. The aim of this work therefore, was to undertake a population survey of biological control agents (Insecta associated with cultivation of Annona squamosa. The research was carried out during the 2015/2016 harvest in a conventional orchard of A. squamosa, located in the town of Tabatinga in the State of São Paulo, Brazil. The biological control agents were captured using yellow sticky traps. The following faunistic indices were calculated: dominance, abundance, frequency and constancy. Population fluctuations in the natural enemies sampled were analysed by histogram. The coccinellid predators, Scymnus sp. (Coleoptera: Coccinellidae and Cycloneda sanguinea (Coleoptera: Coccinellidae were the principal biological control agents sampled during the study, and considered superdominant, superabundant, superfrequent and constant. As for population fluctuation of predominant natural enemies, high population density was seen in Scymnus sp. between September and January 2015, whereas there were three population peaks for C. sanguinea during the study, in September 2015 and January and July 2016. The coccinellids, Scymnus sp. and C. sanguinea, were the predominant biological control agents in the cultivation of A. squamosa, with a higher population density for the genus Scymnus seen in the spring and summer seasons, and no distribution pattern for C. sanguinea observed. = O conhecimento acerca dos agentes de controle biológico presentes naturalmente em áreas agrícolas apresenta grande importância na adoção de metodologias voltadas ao manejo integrado de pragas. Assim, objetivou-se com este trabalho realizar o levantamento da ocorrência populacional de agentes de controle biológico (Insecta associado ao cultivo de Annona squamosa. A pesquisa foi realizada na safra agrícola 2015/2016 em pomar

  20. Composição de Heteroptera aquáticos e semi-aquáticos na área de abrangência da U.H.E. Dona Francisca, RS, Brasil: fase de pré-enchimento Composition of aquatic and semi-aquatic Heteroptera at the Hydroelectric Power Station of Dona Francisca region, RS, Brazil: before dam construction

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    Damaris B. Neri

    2005-12-01

    Full Text Available Neste estudo, foi analisada a composição dos Heteroptera do curso médio da bacia do rio Jacuí, RS, Brasil, previamente à construção da U.H.E. Dona Francisca, bem como alguns fatores abióticos que poderiam afetar a distribuição e a abundância destes organismos. Nos ambientes lênticos, amostragens quantitativas foram realizadas utilizando-se peneiras, em seis localidades (janeiro 2000. Nos ambientes lóticos, as coletas foram feitas através de amostrador de Surber (de maio a outubro de 2000, privilegiando-se a captura de espécies tipicamente bentônicas. Em cada estação, pH, oxigênio dissolvido, precipitação mensal, temperatura do ar e da água e profundidade foram medidos. Nos rios e riachos, a velocidade da corrente também foi registrada. Quinze espécies foram registradas nos ambientes lênticos, sendo Belostoma sp. e Notonecta sp. as dominantes (70%. A abundância, a riqueza e os índices de diversidade foram mais altos nos locais com maiores dimensões. Nos ambientes lóticos, foram assinaladas duas espécies de Naucoridae, Ambrysus teutonius La Rivers, 1951 e Cryphocricus vianai De Carlo, 1951, sendo a primeira dominante (65%. A abundância foi maior nos pontos com maior sombreamento, presença de árvores e/ou com detritos vegetais, ou com a macrófita Podostemum sp. (Podostemaceae no fundo, e mais baixa em locais com curso semi-regulado. Possivelmente, fatores como temperatura e precipitação acumulada estejam relacionados com a abundância mensal dos Naucoridae. Os resultados deste estudo servirão de subsídio para futuros estudos de impacto ambiental após o enchimento do reservatório da U.H.E. Dona Francisca.The Heteroptera composition in the middle course of the Jacuí River basin, RS, Brazil, and some abiotic factors that might affect their distribution and abundance were studied previously to the Dona Francisca dam construction. The insects were quantitatively sampled in six sites, in lentic environments, with

  1. Distribuição de Paravelia recens (Drake & Harris, 1935 (Hemíptera, Heteroptera, Veliidae em Guzmania brasiliensis Ule, 1907 (Bromeliaceae na Reserva Florestal Adolpho Ducke, Amazonas, Brasil Distribution of Paravelia recens (Drake & Harris, 1935 (Hemiptera, Heteroptera, Veliidae in Guzmania brasiliensis Ule, 1907 (Bromeliaceae at Adolpho Ducke Forest Reserve, Amazonas, Brazil

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    Domingos Leonardo Vieira Pereira

    2007-01-01

    Full Text Available Este é o primeiro registro de Paravelia recens (Drake & Harris, 1935 (Heteroptera: Veliidae em fitotelmata de Guzmania brasiliensis Ule, 1907 (Bromeliaceae. O estudo foi conduzido na Reserva Florestal Adolpho Ducke, localizada na rodovia AM 010 km 26, Manaus, Amazonas. Foram realizadas doze amostragens, entre abril de 2003 e abril de 2005, seis no período chuvoso e seis no período de seca. Para cada amostragem, 12 bromélias foram analisadas, seis terrestres e seis epífitas, totalizando 144 amostras. Com exceção das amostras de março e outubro de 2004, 94 espécimes de P. recens foram encontrados. O número de indivíduos coletados foi semelhante nos estratos amostrados, sendo 46 terrestres e 48 epífitas. No período chuvoso foi encontrado um maior número de P. recens (teste-t entre períodos; t =2,57; p=0,011, assim como a abundância de indivíduos esteve positivamente correlacionada com o volume de água por bromélia (r s= 0,18; p=0,033. Este fato pode ser explicado pelo maior aporte de água no período chuvoso acarretando o aumento do volume médio de água nas bromélias.This is the first record of Paravelia recens (Drake & Harris, 1935 (Heteroptera: Veliidae in phytotelmata of Guzmania brasiliensis Ule, 1907 (Bromeliaceae. The study was conduced at Adolpho Ducke Forest Reserve, located on road AM 010 Km 26, Manaus, Amazonas. Twelve samplings were taken between April 2003 and April 2005, namely, six in the wet season and six in the dry season. Twelve bromeliads were analysed for each sampling, six terrestrials and six epiphytics, totaling 144 samples. With the exception of the 2004 March and October samples, 94 specimens of P. recens were found. The number of individuals was similar in the stratums sampled, accounting for 46 terrestrials and 48 epiphytics. P. recens were found in great abundance in the wet season (t-test between season; t=2,57; p=0,011, and the abundance of individuals was positively correlated with water volume

  2. First record of larvae of Chironomidae (Insecta, Diptera as prey of Temnocephala sp. (Platyhelminthes, Temnocephalidae, an ectosymbiont on larvae of Corydalidae (Megaloptera

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    Susana Trivinho-Strixino

    2012-09-01

    Full Text Available First record of larvae of Chironomidae (Insecta, Diptera as prey of Temnocephala sp. (Platyhelminthes, Temnocephalidae, an ectosymbiont on larvae of Corydalidae (Megaloptera. This study constitutes the first record of Temnocephala Blanchard, an ectosymbiont on Corydalidae, as a possible predator of chironomid larvae. Twenty-eight Corydalidae larvae (Corydalus and Protochauliodes were examined under stereomicroscopic in search for Temnocephala and Chironomidae larvae, of which five megalopteran larvae had 24 Temnocephala sp. associated. Furthermore, eight of these Temnocephala worms had chironomid larvae in their gut contents, an interaction previously unknown. Gut content analyses revealed Corynoneura as the commonest chironomid, but larvae of Larsia, Rheotanytarsus and Tanytarsus were recorded as well. This study included Corydalus and Protochauliodes as hosts for Temnocephala, which might be important for this worm dispersion and population dynamics.

  3. A checklist of the praying mantises of Peru: new records, one new genus (Piscomantis gen. n.) and biogeographic remarks (Insecta, Mantodea).

    Science.gov (United States)

    Rivera, Julio; Vergara-Cobián, Clorinda

    2017-10-19

    We present a preliminary checklist of the praying mantises (Insecta: Mantodea) of Peru. A total of 67 species are reported, nine of which constitute new records from that country. The following new nomenclatural procedures are introduced: Musoniella margharethae Battiston and Picciau, 2008 is transferred to Musonia as Musonia margharethae (Battiston and Picciau, 2008) (comb. n.), and Phyllovates brevicollis Orofino, Ippolito and Lombardo, 2006 is considered a new synonym (syn. n.) of Pseudovates peruviana (Rehn, 1911). A new genus, Piscomantis gen. n., is established to accommodate Galapagia peruana Beier, 1935, which is now referred to as Piscomantis peruana (Beier, 1935) (comb. n.). Ten species are removed from the Peruvian mantis fauna and two nomina nuda are proposed. An overview of the biogeography and ecology of Peruvian praying mantises is presented.

  4. ABUNDÂNCIA RELATIVA DAS ESPÉCIES DE CERAMBYCIDAE (INSECTA-COLEOPTERA EM POMAR DE FRUTÍFERAS MISTO RELATIVE ABUNDANCE OF SPECIES OF THE CERAMBYCIDAE FAMILY (INSECTA-COLEOPTERA IN MIXED ORCHARD

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    Elisabeth Rose Pereira da Silva

    2007-09-01

    Full Text Available

    Estudou-se a abundância relativa das espécies da família Cerambycidae (Insecta-Coleoptera em um pomar de frutíferas misto composto por 28 diferentes espécies, no período de dezembro de 1997 a maio de 1999 em Ceres, Estado de Goiás, Brasil. Foram utilizadas armadilhas luminosas modelo “Luiz de Queiroz” com lâmpadas Bl-15 wats. Essas armadilhas foram ligadas por 12 horas em dois dias consectivos num total de 24 horas de coletas semanais. Coletaram-se 1.474 cerambicídeos, agrupados em 39 gêneros e 49 espécies. Acanthoderes jaspidea, Achryson surinamum, Chlorida festiva, Eurodacrys sexgutatta, Gnomibidion fulvipes, Lophopoeum timbouve, Megacyllene acuta, Rhopalophora collaris e Trichophorus distinctus foram as espécies classificadas como muito abundantes. Das espécies coletadas, 48,98 % foram classificadas como raras, 12,24 % como dispersas, 20,41 % como comuns e 18,37 % como muito abundantes. Dentre os 39 gêneros, Oreodera foi representado por três espécies (6,13 %, os gêneros Acanthoderes, Aerenica, Chrysoprasis, Colobothea, Eutrypanus, Megacylene, Myoxomorpha e Nyssodrysternum por duas espécies (4,08 %, e os demais gêneros por apenas uma espécie.

    PALAVRAS-CHAVE: Levantamento; riqueza de espécies; ecologia; comportamento.

    It was studied the relative abundance to the species of the family Cerambycidae (Insecta-Coleoptera in a mixed orchard composed by 28 diferent species in the period from decembre 1997 to may 1999 in Ceres, state of Goi

  5. Efecto de la alternación de fuentes sanguíneas sobre la fecundidad y la fertilidad de Rhodnius prolixus Stal (Heteroptera: Reduviidae

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    Elis José Aldana

    2009-04-01

    Full Text Available En este trabajo se evidencia que si el éxito reproductivo de Rhodnius prolixus Stal está relacionado a la fuente alimentaria, entonces las necesidades biológicas del insecto son satisfechas en modos diferentes según el tipo de alternancia entre dichas fuentes de alimentación; tales diferencias son reveladas mediante los cambios en fertilidad y fecundidad del insecto. Se realizaron nueve alternancias, en cada una se suministraron dos alimentaciones, en unas se alternó la fuente de alimentación y en los controles se suministraron dos alimentaciones con la misma fuente. Las fuentes alimentarias fueron paloma, gallina y humano, esta última mediante un aparato de alimentación artificial; estas fuentes se escogieron en el supuesto que son fuentes alimentarias encontradas en los ecotopos silvestre, peri-domicilio y domicilio respectivamente. En todos los tipos de alternancia se encontró una relación lineal entre la fecundidad y el tiempo de oviposición, que la relación entre cantidad de sangre ingerida y la fecundidad varían, que la tasa de fecundidad aumenta en la segunda alimentación respecto a la primera y que la fertilidad fue superior al 95 %. Effects of alternating blood sources on fecundity and fertility of Rhodnius prolixus Stal (Heteroptera: ReduviidaeIn this work it is argued that if the reproductive parameters of Rhodnius prolixus Stal are related to the blood source upon which it feeds, then the insects biological needs must be satisfied in different ways by the alternation between blood sources, reveled through changes in the fecundity and fertility of individuals of this insect species. Nine experiments were conducted, each one consisting of two feedings, in which the blood source were either alternated or remained the same. The meal sources used were pigeon, hen and human blood, selected according to the resources found in the sylvatic, peri-domestic and domestic ecotopes respectively. It was found that the quantity of

  6. New archaeorthopteran insects from the Late Carboniferous of the Nord and Pas-de-Calais basins in northern France (Insecta: Cnemidolestodea, Panorthoptera).

    Science.gov (United States)

    Coty, David; Háva, Jiří; Prokop, Jakub; Roques, Patrick; Nel, André

    2014-10-29

    New polyneopteran insects are described from Pennsylvanian (Bashkirian, Moscovian) compressed fossils from the North of France (Insecta: Archaeorthoptera). Discovery of wing apex with distinct venation, e.g., apical fusion of RA with RP, numerous parallel posterior branches of RP with transversal crossveins, can be assigned to cf. Tococladus sp. (Cnemidolestodea: Tococladidae). It represents the second record of Cnemidolestodea from the Avion locality apart from Aviocladus pectinatus Prokop et al., 2014. Bruaylogus magnificus gen. et sp. nov., based on forewing venation, is attributed to Panorthoptera nec Orthoptera having some distinct characters for the placement either close to Oedischiidae or a more basal position possibly with affinities to genus Heterologus. Aviologus duquesnei gen. et sp. nov., based on forewing venation, differs from Oedischiidae by the presence of basal fork of M far from point of separation between M and Cu and fusion of MA with first posterior branch of RP. Aviologus share a long stem of M and simple CuPaβ with Heterologus duyiwuer and H. langfordorum, but both differ in well separated median and radial veins. These new fossils demonstrate that the archaeorthopterid insect fauna from the North of France was rather diverse with links to late Carboniferous and early Permian assemblages in Euramerica such as the Mazon Creek, Carbondale Formation or Elmo, Wellington Formation (Illinois, Kansas, USA) entomofaunas.

  7. Levantamento da fauna de Coleoptera (Insecta associada à carcaça de roedores na região Sul do Brasil

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    Vinícius Costa-Silva

    2017-12-01

    Abstract. Coleoptera (Arthropoda, Insecta is considered one of the most important organism groups associated with organic matter decomposition and therefore may be useful to elucidate issues in the criminal context. The richness and abundance of beetles, including the necrophagous species, may vary according to climatic and physiogeographic conditions in different regions, thus the knowledge of the local entomofauna becomes relevant. Thereby, this study aimed to survey the local fauna and register the seasonal behavior of Coleoptera species associated with rodent carcasses exposed in a rural environment at Santa Maria, Rio Grande do Sul, Brazil (29°43'02.88"S 53°43'52.24"W. The collections were carried out quarterly throughout 12 months. Four Rattus norvegicus (Berkenhout carcasses weighing approximately 400 g were exposed, simultaneously, in each season, protected by a steel cage. Four pitfall traps were arranged around each carcass. A total of 1,856 specimens belonging to 14 families of Coleoptera were collected. The greatest abundance was observed during spring (N= 1,006, followed by summer (N= 518, winter (N= 319 and fall (N= 26. Records of the necrophagous entomofauna of Rio Grande do Sul are still scarce. Beyond contributing to the database promotion of the necrophagous species of beetle as a forensic purpose, it is expected that this paper may instigate the achievement of more faunistic surveys, regarding the biodiversity matter of two singular biomes present in the South region, Pampa and Atlantic Forest.Â

  8. Sarchophagid flies (Insecta, Diptera from pig carcasses in Minas Gerais, Brazil, with nine new records from the Cerrado, a threatened Neotropical biome

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    Cátia A. Mello-Patiu

    2014-06-01

    Full Text Available Sarchophagid flies (Insecta, Diptera from pig carcasses in Minas Gerais, Brazil, with nine new records from the Cerrado, a threatened Neotropical biome. The diversity of the Sarcophagidae fauna of the Cerrado biome, also know as the Brazilian Savanna, is still underestimated. In this research we collected flies in the state of Minas Gerais, Brazil, during a Forensic Entomology experiment. Samples were collected throughout the decomposition process of domestic pig (Sus scrofa Linnaeus carcasses, and the experiments were conducted in areas of pasture and semideciduous forest. A total of 85,694 adult flesh flies belonging to 57 species were collected from all carcasses. New records for nine species of Sarcophaginae are provided, including the first record of Blaesoxipha (Acridiophaga caridei (Brèthes, 1906 to Brazil, and new occurrences of the following species for the Cerrado and/or for the state of Minas Gerais: Blaesoxipha (Acanthodotheca acridiophagoides (Lopes & Downs, 1951, Malacophagomyia filamenta (Dodge, 1964, Nephochaetopteryx orbitalis (Curran & Walley, 1934, Nephochaetopteryx cyaneiventris Lopes, 1936, Nephochaetopteryx pallidiventris Townsend, 1934, Oxysarcodexia occulta Lopes, 1946, Ravinia effrenata (Walker, 1861 and Sarcophaga (Neobellieria polistensis (Hall, 1933.

  9. Diversidad genérica de Trichoptera (Insecta en dos microcuencas del Páramo Rabanal (Cundinamarca-Boyacá, Colombia

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    Ivonne T. Latorre-Beltrán

    2014-04-01

    Full Text Available Generic diversity of Trichoptera (Insecta of Paramo Rabanal (Cundinamarca-Boyacá, Colombia. Trichopterans are considered an important and diverse biotic element in continental aquatic ecosystems. The purpose of this study was to evaluate the assemblages of the order Trichoptera in two subwatersheds with a gradient of disturbance. Four sampling events were conducted in two subwatersheds in the Eastern Mountain Range of the Colombian Andes. For the analysis we used rarefaction curves, Bray-Curtis’ Index and Partitioning Diversity and total richness and Shannon’s diversity as metrics. Although total richness was similar between both subwatersheds, abundance was always highest in streams within the conserved subwatershed. Each subwatershed was dominated by different genera, except Ochrotrichia, which was abundant at all sites. Alpha diversity was similar among streams in the conserved watershed, while a reduction in diversity potentially associated with the disturbance gradient was observed in streams of the disturbed subwatershed. Beta diversity (0D and ¹D between subwatersheds and among conserved streams was similar, while in disturbed streams a similar gradient to that of alpha diversity was found. The similitude analysis clustered streams according to their conservation status. Differences found in trichopteran assemblages do confirm that the use of their attributes is adequate to assess the conservation status of stream ecosystems. Rev. Biol. Trop. 62 (Suppl. 2: 97-110. Epub 2014 April 01.

  10. Isolation and Characterization of Yeasts Able to Assimilate Sugarcane Bagasse Hemicellulosic Hydrolysate and Produce Xylitol Associated with Veturius transversus (Passalidae, Coleoptera, and Insecta

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    Italo Thiago Silveira Rocha Matos

    2017-01-01

    Full Text Available Yeasts are an important component of insect gut microbial content, playing roles such as degradation of polymers and toxic compounds, biological control, and hormone, vitamin, and digestive enzyme production. The xylophagous beetle gut is a hyperdiverse habitat and a potential source of new species with industrial abilities such as enzyme production, pentose fermentation, and biodetoxification. In this work, samples of Veturius transversus (Passalidae, Coleoptera, and Insecta were collected from the Central Amazon Rainforest. Their guts were dissected and a total of 20 microbial colonies were isolated using sugarcane bagasse hemicellulosic hydrolysate. They were identified as having 10 distinct biochemical profiles, and genetic analysis allowed identification as three clades in the genera Candida, Williopsis, and Geotrichum. All colonies were able to assimilate D-xylose and 18 were able to produce xylitol, especially a strain of Geotrichum, with a maximum yield of 0.502 g·g−1. These results agree with a previous prediction that the microbial community associated with xylophagous insects is a promising source of species of biotechnological interest.

  11. Asociación Thysanoptera (Insecta-Vicia faba (Fabaceae en la Prepuna y Puna de Jujuy, Argentina Thysanoptera (Insecta-Vicia faba (Fabaceae association in Prepuna and Puna in Jujuy, Argentina

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    María Inés Zamar

    2012-03-01

    . occidentalis utilizan la planta en forma temporal y oportunista en Prepuna, mientras que la presencia de F. gemina en Puna es esporádica. Se amplía el número de especies de tisanópteros asociadas al cultivo de haba en ArgentinaThysanoptera (Insecta-Vicia faba (Fabaceae association in Prepuna and Puna in Jujuy, Argentina. The different phenological stages of Vicia faba provide food resources and substrates for the development of a significant diversity of insects. This study aimed to identify the complex of anthophyllous thrips, analyze the species population fluctuations, to obtain some bioecological aspects and the role they play in this association. The study and sampling was conducted during the flowering-fruiting bean crop stages in two phytogeographical regions of Jujuy: Prepuna (2 479m asl on a weekly basis, from October-December 1995-1996 and Puna (3 367m asl every two weeks, from December 2007-March 2008. Each sample consisted of 25 flowers taken at random; only at Prepuna a complementary sampling of three hits per plant (n=10 plants was conducted. Observations were made on oviposition sites, admission to the flower, pupation sites, feeding behavior and injuries caused. In Prepuna, the Thysanoptera complex consisted of Frankliniella australis, F. occidentalis, F. gemina, F. schultzei and Thrips tabaci; in Puna, the specific diversity was restricted to F. australis and F. gemina. Although the planting-harvest period in both areas did not match, the fluctuations in populations showed the same pattern: as flowering progressed, the number of thrips coincided with the availability of food resources. In both areas, F. australis was the dominant species and maintained successive populations; it layed eggs in flower buds, and larvae hatched when flowers opened; feeding larvae and adults brought about silvery stains with black spots. In Prepuna, F. australis went through the mobile immature stages on flowers, while quiescent stages were on the ground; in the Puna, all

  12. Leptohyphidae (Insecta, Ephemeroptera do estado do Amazonas, Brasil: novos registros, nova combinação, nova espécie e chave de identificação para estágios ninfais Leptohyphidae (Insecta, Ephemeroptera of Amazonas state, Brazil: new records, new combination, new species and identification key for nymphal stages

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    Enide Luciana Lima Belmont

    2012-09-01

    Full Text Available Leptohyphidae (Insecta, Ephemeroptera do Estado do Amazonas, Brasil: novos registros, nova combinação, nova espécie e chave de identificação para estágios ninfais. Os seguintes gêneros de Leptohyphidae ocorrem no estado do Amazonas: Amanahyphes Salles & Molineri, Leptohyphes Eaton, Tricorythodes Ulmer e Tricorythopsis Traver. A distribuição das espécies de Leptohyphidae no Estado do Amazonas é apresentada. Uma espécie nova, Tricorythodes yapekuna sp. nov., é descrita e pode ser diferenciada de outros Tricorythodes pelas (1 garras tarsais com um par de dentículos submarginais e sem dentículos marginais; (2 palpo maxilar biarticulado; (3 brânquia opercular uniformemente preta com exceção da margem apical; (4 fórmula branquial 2/3/3/3/2; e (5 margem lateral do abdome expandida nos segmentos III_VI. Uma combinação nova, Tricorythopsis rondoniensis (Dias, Cruz & Ferreira, 2009 comb. nov., é proposta e constitui o primeiro registro dessa espécie para o Estado do Amazonas. Uma chave dicotômica ilustrada para identificar ninfas de gêneros e espécies ocorrentes no Amazonas também é apresentada.Leptohyphidae (Insecta, Ephemeroptera of Amazonas state, Brazil: new records, new combination, new species and identification key for nymphal stages. The following genera of Leptohyphidae occur in the Amazonas state: Amanahyphes Salles & Molineri, Leptohyphes Eaton, Tricorythodes Ulmer and Tricorythopsis Traver. Distribution of Leptohyphidae species in Amazonas state is presented. A new species, Tricorythodes yapekuna sp. nov., is described and can be distinguished from other Tricorythodes by: (1 tarsal claws with pair of submarginal denticles and no marginal denticles; (2 bi-articulated maxillary palp; (3 opercular gill black except on apical margin; (4 gill formula 2/3/3/3/2; and (5 expanded lateral abdominal margin of segments III_VI. The new combination, Tricorythopsis rondoniensis (Dias, Cruz & Ferreira, 2009 comb. nov., is proposed

  13. Diversidade e distribuição de ninfas de Plecoptera (Insecta por substratos em rios do Parque Estadual da Pedra Branca, Rio de Janeiro, Brasil

    Directory of Open Access Journals (Sweden)

    Fernanda Avelino Capistrano

    2017-08-01

    Full Text Available Resumo. No presente estudo procuramos entender o principal substrato de ocorrência de ninfas de Plecoptera (Insecta em rios do Parque Estadual da Pedra Branca (Rio de Janeiro, RJ, Brasil. As coletadas das ninfas foram realizadas entre agosto/2008 a março/2009, em cinco riachos localizados a 200 m de altitude. Foram investigados cinco tipos diferentes de substrato: areia, folhiço retido, folhiço de fundo, rocha com musgo e rocha solta lisa. Além da coleta de imaturos, a temperatura da água e do ar, o pH, a largura e a profundidade dos riachos, e a velocidade da água (método de flutuação foram medidas. A Análise de Espécies Indicadoras e o Teste de Monte Carlo foram utilizados para determinar a preferência de habitats pelas morfoespécies. O índice de Shannon foi utilizado para verificar a maior diversidade entre os substratos e os rios. Uma análise de agrupamento foi realizada a fim de verificar a similaridade física e biológica dos rios. Um total de 559 ninfas foi coletado e distribuídos em seis morfoespécies. O substrato ‘folhiço retido’ mostrou-se como o de maior abundância e riqueza em todos os riachos estudados. A heterogeneidade de substratos foi apontada como principal fator de diversidade entre os pontos de coleta. Diversity and substrate distribution of Plecoptera nymphs (Insecta in strems of Parque Estadual da Pedra Branca, Rio de Janeiro, Brazil Abstract. The present study contributes to the understanding the main substrate where Plecoptera nymphs have occur in streams of Parque Estadual da Pedra Branca (Rio de Janeiro municipality, Rio de Janeiro State, Brazil. The collects of the nymphs were realized between August 2008 to March 2009, in five streams located at 200 m. asl. Five different substrates were investigated: sand, litter deposited in pool areas, litter in riffle areas, stones with moss and free stones. In addition to the collection of nymphs, water and air temperatures, pH, width and depth of the

  14. Biologia de Imaturos e Adultos de Podisus nigrispinus (Dallas (Hemiptera: Pentatomidae Alimentados com Lagartas de Dione juno juno (Cramer (Lepidoptera: Nymphalidae, criadas em Diferentes Genótipos de Maracujazeiro

    Directory of Open Access Journals (Sweden)

    Marina Angelini

    2015-12-01

    Abstract. The development of Podisus nigrispinus (Dallas (Hemiptera: Pentatomidae nymphs fed with Dione juno juno (Cramer (Lepidoptera: Nymphalidae larvae reared on leaves of the passion fruit genotypes Passiflora edulis Sims., Passiflora edulis f. flavicarpa Deg. (Seleção de Jaboticabal, P. edulis f. flavicarpa (cv. Sul Brasil and P. edulis f. flavicarpa (cv. Maguary FB-100, P. alata, P. serrato-digitata and P. foetida. The experiment was conducted under controlled conditions (temperature: 26 ± 1°C, RH = 60 ± 10% and photophase of 14 hours. Second instar nymphs of the predator were kept in plastic cups (4.5 cm high and 7.5 cm wide groups of five. Ten-day-old (approx. 2 cm D. juno juno larvae reared on leaves of different passion fruit genotypes were provided daily to P. nigrispinus. The experiment was carried out with 10 replications, totalizing 50 nymphs per treatment. Daily evaluations were performed to measure the duration and viability of each instar, the body mass of nymphs (24 hours after each ecdysis and adults, and the duration and viability of the nymph phase and adult longevity under starvation. Results show the influence of passion fruit genotypes at the third trophic level, since larvae reared with P. edulis f. flavicarpa (Seleção de Jaboticabal have shown to be more adequate for predator development. The results of this experiment show the influence of passion fruit genotypes on the third trophic level. The genotype P. edulis f. flavicarpa cv. Sul Brasil has a less appropriate to the predator, suggesting a negative way the association between host plant resistance and use of biological control. Already P. edulis and genotypes P. edulis f. flavicarpa Jaboticabal Selection can be used along with the predator because these cultivars did not affect the third trophic level. P. edulis f. flavicarpa cv. Maguary FB-100, considered ill-suited to the development of larvae of D. juno juno, affected the predator, resulting in a negative

  15. Famílias de Hymenoptera (Insecta como ferramenta avaliadora da conservação de restingas no extremo sul do Brasil

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    Cristina Maria Loyola Zardo

    2009-12-01

    Full Text Available Com o objetivo de estimar e comparar a diversidade e flutuação populacional das famílias de Hymenoptera em área de restinga foi realizado um levantamento faunístico em duas áreas de restinga com diferentes níveis de conservação. Foram coletados 5.518 himenópteros distribuídos em 30 famílias. Os picos populacionais na flutuação das famílias ocorreram no verão confirmando a alta correlação da temperatura com a distribuição das famílias. Constatou-se na restinga em sucessão maior riqueza, porém, com alta dominância, abrigando representantes dos três grupos ecológicos (antófilos, generalistas e parasitóides em alta abundância. A restinga preservada, com 17 famílias, verificou-se mais diversa e homogênea, onde verificou-se maior abundância dos parasitóides, devido à maior estabilidade do sistema. A riqueza de famílias de Hymenoptera em áreas de restinga pode ser utilizada como parâmetro indicativo de qualidade ambiental, para este tipo de bioma.Hymenoptera Families (Insecta as Evaluation Tool of the Conservation of Sandbanks in Southern BrazilAbstract. With aim to estimate and compare the diversity and population of the Hymenoptera families in a sandbank area was carried out a wildlife survey in two areas of sandbank with different levels of conservation. We collected 5 518 Hymenoptera distributed in 30 families. The peaks in the families fluctuation occurred in the summer confirmed the high correlation of temperature with the distribution of families. The sandbank in succession had the highest richness, however with high dominance, hosting representatives of the three ecological groups (anthophilous, generalists and parasitoids in high abundance. The sandbank preserved, with 17 families, was more diverse and homogeneous, where the parasitoids showed greater abundance due to greater system stability. The richness of Hymenoptera families in sandbanks can be used as a parameter indicative of environmental quality.

  16. Leptohyphidae (Insecta, Ephemeroptera do estado do Amazonas, Brasil: novos registros, nova combinação, nova espécie e chave de identificação para estágios ninfais

    Directory of Open Access Journals (Sweden)

    Enide Luciana Lima Belmont

    2012-09-01

    Full Text Available Leptohyphidae (Insecta, Ephemeroptera do Estado do Amazonas, Brasil: novos registros, nova combinação, nova espécie e chave de identificação para estágios ninfais. Os seguintes gêneros de Leptohyphidae ocorrem no estado do Amazonas: Amanahyphes Salles & Molineri, Leptohyphes Eaton, Tricorythodes Ulmer e Tricorythopsis Traver. A distribuição das espécies de Leptohyphidae no Estado do Amazonas é apresentada. Uma espécie nova, Tricorythodes yapekuna sp. nov., é descrita e pode ser diferenciada de outros Tricorythodes pelas (1 garras tarsais com um par de dentículos submarginais e sem dentículos marginais; (2 palpo maxilar biarticulado; (3 brânquia opercular uniformemente preta com exceção da margem apical; (4 fórmula branquial 2/3/3/3/2; e (5 margem lateral do abdome expandida nos segmentos III_VI. Uma combinação nova, Tricorythopsis rondoniensis (Dias, Cruz & Ferreira, 2009 comb. nov., é proposta e constitui o primeiro registro dessa espécie para o Estado do Amazonas. Uma chave dicotômica ilustrada para identificar ninfas de gêneros e espécies ocorrentes no Amazonas também é apresentada.

  17. Variação de Abundância, Diversidade Ecológica e Similaridade de Coleoptera (Insecta entre Restinga e Marisma do Estuário da Lagoa dos Patos, Rio Grande, RS

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    Katiele Dummel

    2011-07-01

    Abstract. Insecta is the most diverse, abundant and dominant group of arthropods, being used in diversity studies as biological indicators. Despite this, there are few studies regard to coleopterofauna and its relation to coastal environments. Salt marshes and sandbanks are characterized by their ecological importance of coastal regions of the southwest Atlantic. Therefore, this study aimed to compare the fauna of Coleoptera captured in a sandbank area with the fauna of a salt marsh in the estuary of the lagoon Lagoa dos Patos, RS. Samples were collected from August 2007 to July 2008 in sandbank area; and from September 2008 to August 2009 in the salt marsh area. A total of 826 beetles were collected, distributed in 26 families. The results suggest that both sandbank and salt marsh presented equally rich families, but with alternation of dominance between the areas. Coleoptera communities flutuactions in each area were different in the period; however, the peak abundance of both areas coincided with the warmer months. The diversity of families was higher in the area of sandbank, while families caught in sandbanks have greater similarity to those found in both areas. Groups classified as rare surpassed common. Families of varied habit appeared in both environments; nonetheless, the herbivorous dominated in the sandbank and carnivorous in the salt marsh.

  18. Desenvolvimento do predador Podisus nigrispinus alimentado com Spodoptera frugiperda e Tenebrio molitor.

    OpenAIRE

    OLIVEIRA, H.N. de; PRATISSOLI, D.; PEDRUZZI, E.P.; ESPINDULA, M.C.

    2004-01-01

    Ninfas de Podisus nigrispinus (Heteroptera: Pentatomidae) têm sido criadas em laboratório com larvas de Tenebrio molitor L. (Coleoptera: Tenebrionidae). No entanto, não existem relatos sobre a predação, no campo ou em laboratório, de P. nigrispinus em Spodoptera frugiperda (Lepidoptera: Noctuidae), uma das principais pragas de inúmeras culturas no Brasil. Este trabalho teve o objetivo de avaliar o desenvolvimento ninfal e características reprodutivas do percevejo predador P. nigrispinus em la...

  19. Development of the predator Podisus nigrispinus fed on Spodoptera frugiperda and Tenebrio molitor

    OpenAIRE

    Oliveira, Harley Nonato de; Pratissoli, Dirceu; Pedruzzi, Eder Pin; Espindula, Marcelo Curitiba

    2004-01-01

    Ninfas de Podisus nigrispinus (Heteroptera: Pentatomidae) têm sido criadas em laboratório com larvas de Tenebrio molitor L. (Coleoptera: Tenebrionidae). No entanto, não existem relatos sobre a predação, no campo ou em laboratório, de P. nigrispinus em Spodoptera frugiperda (Lepidoptera: Noctuidae), uma das principais pragas de inúmeras culturas no Brasil. Este trabalho teve o objetivo de avaliar o desenvolvimento ninfal e características reprodutivas do percevejo predador P. nigrispinus em la...

  20. Gönen Çayı (Balıkesir, Çanakkale-Türkiye'nda yaşayan sucul Coleoptera ve sucul ve yarısucul Heteroptera faunası üzerine bir çalışma.

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    Esat Tarık Topkara

    2015-12-01

    Full Text Available Gönen Çayı’nın sucul Coleoptera ve sucul-yarısucul Heteroptera faunasını belirlemek amacıyla gerçekleştirilen bu çalışmada, Gönen çayı ve kollarına 2010-2012 yılları arasında 8 arazi çalışması düzenlenmiştir. Bu arazi çalışmalarında 15 istasyonda örnekleme çalışması yürütülmüştür. Sucul böcek örnekleri 500 µm göz açıklığındaki el kepçesi ile toplanmıştır. Laboratuvarda yapılan incelemeler sonucunda Coleoptera ordosuna ait Gyrinidae familyasından 3 takson, Noteridae familyasından 1 tür, Dytiscidae familyasından 11 tür 1 alttür, Hydrophilidae familyasından 13 tür 1 alttür, Spercheidae familyasından 1 tür, Hydraenidae familyasından 4 tür tespit edilmiştir. Heteroptera ordosuna ait Gerridae familyasından 1 tür, Corixidae familyasından 3 tür 3 alttür, Notonectidae familyasından 2 tür tespit edilmiştir. Bu taksonlardan Gyrinus caspius, Gyrinus distinctus, Gyrinus substriatus, Agabus bipustulatus, Agabus guttatus, Hydaticus leander, Hydroporus pubescens, Laccophilus hyalinus, Laccophilus poecilus, Platambus lunulatus, Ranthus suturalis, Scarodytes halensis halensis, Boreonectes griseostriatus, Anacaena rufipes, Berosus byzantinus, Helochares lividus, Notonecta viridis, Notonecta maculata, Sigara striata, Sigara nigrolineata nigrolineata, Sigara lateralis Gönen Çayı’nın Balıkesir ili sınırları içerisindeki istasyonlardan; Laccophilus minutus, Spercheus emarginatus, Sigara limitata limitata Gönen Çayı’nın Çanakkale ili sınırları içerisindeki istasyonlardan; Enochrus bicolor, Micronecta scholtzi, Micronecta anatolica anatolica, Gerris thorasicus Çanakkale ve Balıkesir il sınırları içerisindeki istasyonlarından ilk kez tespit edilmiştir

  1. Insecta, Coleoptera, Elmidae, Amazon region

    Directory of Open Access Journals (Sweden)

    Passos, M. I. S.

    2010-01-01

    Full Text Available A list of Elmidae species from Amazon is presented. The list was prepared based on a literature surveyand examination of the entomological collection of Instituto Nacional de Pesquisas da Amazônia (INPA. The listincludes 102 species, with ten new occurrences recorded, being one for the Amazon (which includes areas ofBrazil, Bolivia, Colombia, Guyana, French Guyana, Peru, Suriname and Venezuela three for the Amazonas state,and six for other localities in Brazil. Reports about species bibliography contents were also included, as well asavailable species municipalities distributional data.

  2. Discrimination of the Palomena prasina L. (Heteroptera ...

    African Journals Online (AJOL)

    Discrimination of different nymphal stages and sex (male and female) of insects is important in the morphological, physiological and toxicological studies under laboratory and field conditions. The morphometric study of different parts of an insect's body is needed to obtain an index to distinguish between different nymphal ...

  3. Notes on Caribbean Phymatidae (Hemiptera: Heteroptera)

    NARCIS (Netherlands)

    Kormilev, N.A.; Doesburg, van P.H.

    1991-01-01

    New descriptive and distributional data are presented for Ambush bugs from the Dominican Republic: Phymatocoris iviei gen. nov., spec. nov. and Lophoscutus hispaniolensis spec. nov. New records are given for Phymata interjecta Dudich, 1922, Lophoscutus confusus Kormilev, 1989, and L. ypsilon

  4. The Gelastocoris nebulosus complex (Heteroptera – Gelastocoridae)

    NARCIS (Netherlands)

    Nieser, N.

    1972-01-01

    Se trata de las espécies del grupo nebulosus del género Gelastocoris. Según el autór este grupo contiene una espécie con dos subespécies. Gelastocoris nebulosus nebulosus (Guérin) con sinónimas G. flavus (Guérin), G. apureensis Melin, G. monrosi De Cario, G. paraguayensis De Carlo y G. vianai De

  5. The decapod red pigment-concentrating hormone (Panbo-RPCH) is the first identified neuropeptide of the order Plecoptera and is interpreted as homoplastic character state.

    Science.gov (United States)

    Gäde, Gerd; Marco, Heather G

    2015-09-15

    This paper presents the first neuropeptide structure, identified by mass spectrometry, in two species of Plectoptera (stoneflies) and in one species of the coleopteran family Lycidae. In all three species, the octapeptide Panbo-RPCH (first identified in Pandalus borealis as a red pigment-concentrating hormone: pGlu-Leu-Asn-Phe-Ser-Pro-Gly-Trp amide) is present. A review of the literature available on invertebrate neuropeptides that are identified or predicted from expressed sequence tags, transcriptome shotgun assemblies, and from fully sequenced genomes, show that Panbo-RPCH is found in Malacostraca (Crustacea) and certain hemipteran Heteroptera (Insecta). To date, Panbo-RPCH has not been shown present in non-Malacostracan crustaceans, nor in basal taxa of the Insecta (Archaeognatha, Zygentoma, Ephemeroptera, Odonata). The present data adds to knowledge on the distribution of Panbo-RPCH, and when taking into account the most accepted, current phylogenetics of the Crustacea-Hexapoda relationship, this distribution of Panbo-RPCH in Malacostraca, Plecoptera, some hemipteran Heteroptera and in Coleoptera (Lycidae) can best be explained by homoplasy, implying parallel evolution. Copyright © 2015 Elsevier Inc. All rights reserved.

  6. DNA Barcodes for Nearctic Auchenorrhyncha (Insecta: Hemiptera)

    Science.gov (United States)

    Foottit, Robert G.; Maw, Eric; Hebert, P. D. N.

    2014-01-01

    Background Many studies have shown the suitability of sequence variation in the 5′ region of the mitochondrial cytochrome c oxidase I (COI) gene as a DNA barcode for the identification of species in a wide range of animal groups. We examined 471 species in 147 genera of Hemiptera: Auchenorrhyncha drawn from specimens in the Canadian National Collection of Insects to assess the effectiveness of DNA barcoding in this group. Methodology/Principal Findings Analysis of the COI gene revealed less than 2% intra-specific divergence in 93% of the taxa examined, while minimum interspecific distances exceeded 2% in 70% of congeneric species pairs. Although most species are characterized by a distinct sequence cluster, sequences for members of many groups of closely related species either shared sequences or showed close similarity, with 25% of species separated from their nearest neighbor by less than 1%. Conclusions/Significance This study, although preliminary, provides DNA barcodes for about 8% of the species of this hemipteran suborder found in North America north of Mexico. Barcodes can enable the identification of many species of Auchenorrhyncha, but members of some species groups cannot be discriminated. Future use of DNA barcodes in regulatory, pest management, and environmental applications will be possible as the barcode library for Auchenorrhyncha expands to include more species and broader geographic coverage. PMID:25004106

  7. First Jurassic grasshopper (Insecta, Caelifera) from China.

    Science.gov (United States)

    Gu, Jun-Jie; Yue, Yanli; Shi, Fuming; Tian, He; Ren, Dong

    2016-09-20

    Orthoptera is divided into two suborders, the Ensifera (katydids, crickets and mole crickets) and the Caelifera (grasshoppers and pygmy mole crickets). The earliest definitive caeliferans are those found in the Triassic (Bethoux & Ross 2005). The extinct caeliferan families, such as Locustopsidae and Locustavidae, may prove to be stem groups to some of the modern superfamilies (Grimaldi & Engel 2005). Locustopsidae is known from the Late Triassic or Early Jurassic to Late Cretaceous, consisting of two subfamilies (Gorochov et al. 2006). They are recorded from Europe, England, Russia, central Asia, China, Egypt, North America, Brazil and Australia. Up to now, Late Mesozoic fossil deposits of China has been reported plenty taxa of orthopterids, e.g. ensiferans, phasmatodeans, grylloblattids (Cui et al. 2012; Gu et al. 2010; Gu et al. 2012a; Gu et al. 2012b; Ren et al. 2012; Wang et al. 2014); but, with few caeliferans records, only four species, Pseudoacrida costata Lin 1982, Mesolocustopsis sinica Hong 1990, Tachacris stenosis Lin 1977 and T. turgis Lin 1980, were reported from the Early Cretaceous of Ningxia, Shandong, Yunnan and Zhejiang of China.

  8. Family-group names in Coleoptera (Insecta)

    Science.gov (United States)

    Bouchard, Patrice; Bousquet, Yves; Davies, Anthony E.; Alonso-Zarazaga, Miguel A.; Lawrence, John F.; Lyal, Chris H. C.; Newton, Alfred F.; Reid, Chris A. M.; Schmitt, Michael; Ślipiński, S. Adam; Smith, Andrew B. T.

    2011-01-01

    Abstract We synthesize data on all known extant and fossil Coleoptera family-group names for the first time. A catalogue of 4887 family-group names (124 fossil, 4763 extant) based on 4707 distinct genera in Coleoptera is given. A total of 4492 names are available, 183 of which are permanently invalid because they are based on a preoccupied or a suppressed type genus. Names are listed in a classification framework. We recognize as valid 24 superfamilies, 211 families, 541 subfamilies, 1663 tribes and 740 subtribes. For each name, the original spelling, author, year of publication, page number, correct stem and type genus are included. The original spelling and availability of each name were checked from primary literature. A list of necessary changes due to Priority and Homonymy problems, and actions taken, is given. Current usage of names was conserved, whenever possible, to promote stability of the classification. New synonymies (family-group names followed by genus-group names): Agronomina Gistel, 1848 syn. nov. of Amarina Zimmermann, 1832 (Carabidae), Hylepnigalioini Gistel, 1856 syn. nov. of Melandryini Leach, 1815 (Melandryidae), Polycystophoridae Gistel, 1856 syn. nov. of Malachiinae Fleming, 1821 (Melyridae), Sclerasteinae Gistel, 1856 syn. nov. of Ptilininae Shuckard, 1839 (Ptinidae), Phloeonomini Ádám, 2001 syn. nov. of Omaliini MacLeay, 1825 (Staphylinidae), Sepedophilini Ádám, 2001 syn. nov. of Tachyporini MacLeay, 1825 (Staphylinidae), Phibalini Gistel, 1856 syn. nov. of Cteniopodini Solier, 1835 (Tenebrionidae); Agronoma Gistel 1848 (type species Carabus familiaris Duftschmid, 1812, designated herein) syn. nov. of Amara Bonelli, 1810 (Carabidae), Hylepnigalio Gistel, 1856 (type species Chrysomela caraboides Linnaeus, 1760, by monotypy) syn. nov. of Melandrya Fabricius, 1801 (Melandryidae), Polycystophorus Gistel, 1856 (type species Cantharis aeneus Linnaeus, 1758, designated herein) syn. nov. of Malachius Fabricius, 1775 (Melyridae), Sclerastes Gistel, 1856 (type species Ptilinus costatus Gyllenhal, 1827, designated herein) syn. nov. of Ptilinus Geoffroy, 1762 (Ptinidae), Paniscus Gistel, 1848 (type species Scarabaeus fasciatus Linnaeus, 1758, designated herein) syn. nov. of Trichius Fabricius, 1775 (Scarabaeidae), Phibalus Gistel, 1856 (type species Chrysomela pubescens Linnaeus, 1758, by monotypy) syn. nov. of Omophlus Dejean, 1834 (Tenebrionidae). The following new replacement name is proposed: Gompeliina Bouchard, 2011 nom. nov. for Olotelina Báguena Corella, 1948 (Aderidae). Reversal of Precedence (Article 23.9) is used to conserve usage of the following names (family-group names followed by genus-group names): Perigonini Horn, 1881 nom. protectum over Trechicini Bates, 1873 nom. oblitum (Carabidae), Anisodactylina Lacordaire, 1854 nom. protectum over Eurytrichina LeConte, 1848 nom. oblitum (Carabidae), Smicronychini Seidlitz, 1891 nom. protectum over Desmorini LeConte, 1876 nom. oblitum (Curculionidae), Bagoinae Thomson, 1859 nom. protectum over Lyprinae Gistel 1848 nom. oblitum (Curculionidae), Aterpina Lacordaire, 1863 nom. protectum over Heliomenina Gistel, 1848 nom. oblitum (Curculionidae), Naupactini Gistel, 1848 nom. protectum over Iphiini Schönherr, 1823 nom. oblitum (Curculionidae), Cleonini Schönherr, 1826 nom. protectum over Geomorini Schönherr, 1823 nom. oblitum (Curculionidae), Magdalidini Pascoe, 1870 nom. protectum over Scardamyctini Gistel, 1848 nom. oblitum (Curculionidae), Agrypninae/-ini Candèze, 1857 nom. protecta over Adelocerinae/-ini Gistel, 1848 nom. oblita and Pangaurinae/-ini Gistel, 1856 nom. oblita (Elateridae), Prosternini Gistel, 1856 nom. protectum over Diacanthini Gistel, 1848 nom. oblitum (Elateridae), Calopodinae Costa, 1852 nom. protectum over Sparedrinae Gistel, 1848 nom. oblitum (Oedemeridae), Adesmiini Lacordaire, 1859 nom. protectum over Macropodini Agassiz, 1846 nom. oblitum (Tenebrionidae), Bolitophagini Kirby, 1837 nom. protectum over Eledonini Billberg, 1820 nom. oblitum (Tenebrionidae), Throscidae Laporte, 1840 nom. protectum over Stereolidae Rafinesque, 1815 nom. oblitum (Throscidae) and Lophocaterini Crowson, 1964 over Lycoptini Casey, 1890 nom. oblitum (Trogossitidae); Monotoma Herbst, 1799 nom. protectum over Monotoma Panzer, 1792 nom. oblitum (Monotomidae); Pediacus Shuckard, 1839 nom. protectum over Biophloeus Dejean, 1835 nom. oblitum (Cucujidae), Pachypus Dejean, 1821 nom. protectum over Pachypus Billberg, 1820 nom. oblitum (Scarabaeidae), Sparrmannia Laporte, 1840 nom. protectum over Leocaeta Dejean, 1833 nom. oblitum and Cephalotrichia Hope, 1837 nom. oblitum (Scarabaeidae). PMID:21594053

  9. Family-Group Names In Coleoptera (Insecta

    Directory of Open Access Journals (Sweden)

    Patrice Bouchard

    2011-04-01

    Full Text Available We synthesize data on all known extant and fossil Coleoptera family-group names for the first time. A catalogue of 4887 family-group names (124 fossil, 4763 extant based on 4707 distinct genera in Coleoptera is given. A total of 4492 names are available, 183 of which are permanently invalid because they are based on a preoccupied or a suppressed type genus. Names are listed in a classification framework. We recognize as valid 24 superfamilies, 211 families, 541 subfamilies, 1663 tribes and 740 subtribes. For each name, the original spelling, author, year of publication, page number, correct stem and type genus are included. The original spelling and availability of each name were checked from primary literature. A list of necessary changes due to Priority and Homonymy problems, and actions taken, is given. Current usage of names was conserved, whenever possible, to promote stability of the classification. New synonymies (family-group names followed by genus-group names: Agronomina Gistel, 1848 syn. n. of Amarina Zimmermann, 1832 (Carabidae, Hylepnigalioini Gistel, 1856 syn. n. of Melandryini Leach, 1815 (Melandryidae, Polycystophoridae Gistel, 1856 syn. n. of Malachiinae Fleming, 1821 (Melyridae, Sclerasteinae Gistel, 1856 syn. n. of Ptilininae Shuckard, 1839 (Ptinidae, Phloeonomini Ádám, 2001 syn. n. of Omaliini MacLeay, 1825 (Staphylinidae, Sepedophilini Ádám, 2001 syn. n. of Tachyporini MacLeay, 1825 (Staphylinidae, Phibalini Gistel, 1856 syn. n. of Cteniopodini Solier, 1835 (Tenebrionidae; Agronoma Gistel 1848 (type species Carabus familiaris Duftschmid, 1812, designated herein syn. n. of Amara Bonelli, 1810 (Carabidae, Hylepnigalio Gistel, 1856 (type species Chrysomela caraboides Linnaeus, 1760, by monotypy syn. n. of Melandrya Fabricius, 1801 (Melandryidae, Polycystophorus Gistel, 1856 (type species Cantharis aeneus Linnaeus, 1758, designated herein syn. n. of Malachius Fabricius, 1775 (Melyridae, Sclerastes Gistel, 1856 (type species Ptilinus costatus Gyllenhal, 1827, designated herein syn. n. of Ptilinus Geoffroy, 1762 (Ptinidae, Paniscus Gistel, 1848 (type species Scarabaeus fasciatus Linnaeus, 1758, designated herein syn. n. of Trichius Fabricius, 1775 (Scarabaeidae, Phibalus Gistel, 1856 (type species Chrysomela pubescens Linnaeus, 1758, by monotypy syn. n. of Omophlus Dejean, 1834 (Tenebrionidae. The following new replacement name is proposed: Gompeliina Bouchard, 2011 nom. n. for Olotelina Báguena Corella, 1948 (Aderidae. Reversal of Precedence (Article 23.9 is used to conserve usage of the following names (family-group names followed by genus-group names: Perigonini Horn, 1881 nom. protectum over Trechicini Bates, 1873 nom. oblitum (Carabidae, Anisodactylina Lacordaire, 1854 nom. protectum over Eurytrichina LeConte, 1848 nom. oblitum (Carabidae, Smicronychini Seidlitz, 1891 nom. protectum over Desmorini LeConte, 1876 nom. oblitum (Curculionidae, Bagoinae Thomson, 1859 nom. protectum over Lyprinae Gistel 1848 nom. oblitum (Curculionidae, Aterpina Lacordaire, 1863 nom. protectum over Heliomenina Gistel, 1848 nom. oblitum (Curculionidae, Naupactini Gistel, 1848 nom. protectum over Iphiini Schönherr, 1823 nom. oblitum (Curculionidae, Cleonini Schönherr, 1826 nom. protectum over Geomorini Schönherr, 1823 nom. oblitum (Curculionidae, Magdalidini Pascoe, 1870 nom. protectum over Scardamyctini Gistel, 1848 nom. oblitum (Curculionidae, Agrypninae/-ini Candèze, 1857 nom. protecta over Adelocerinae/-ini Gistel, 1848 nom. oblita and Pangaurinae/-ini Gistel, 1856 nom. oblita (Elateridae, Prosternini Gistel, 1856 nom. protectum over Diacanthini Gistel, 1848 nom. oblitum (Elateridae, Calopodinae Costa, 1852 nom. protectum over Sparedrinae Gistel, 1848 nom. oblitum (Oedemeridae, Adesmiini Lacordaire, 1859 nom. protectum over Macropodini Agassiz, 1846 nom. oblitum (Tenebrionidae, Bolitophagini Kirby, 1837 nom. protectum over Eledonini Billberg, 1820 nom. oblitum (Tenebrionidae, Throscidae Laporte, 1840 nom. protectum over Stereolidae Rafinesque, 1815 nom. oblitum (Throscidae and Lophocaterini Crowson, 1964 over Lycoptini Casey, 1890 nom. oblitum (Trogossitidae; Monotoma Herbst, 1799 nom. protectum over Monotoma Panzer, 1792 nom. oblitum (Monotomidae; Pediacus Shuckard, 1839 nom. protectum over Biophloeus Dejean, 1835 nom. oblitum (Cucujidae, Pachypus Dejean, 1821 nom. protectum over Pachypus Billberg, 1820 nom. oblitum (Scarabaeidae, Sparrmannia Laporte, 1840 nom. protectum over Leocaeta Dejean, 1833 nom. oblitum and Cephalotrichia Hope, 1837 nom. oblitum (Scarabaeidae.

  10. Chironomidae (Insecta: Diptera) Collected from Hydrilla Verticillata ...

    African Journals Online (AJOL)

    A survey of the aquatic weed Hydrilla verticillata was conducted in selected Kenyan and Ugandan lakes, and emerging chironomid adults were collected from samples of Hydrilla and seven other aquatic macrophytes. Hydrilla was absent from Lake Victoria, in sites where it previously occurred. Hydrilla was found in four of ...

  11. Overview: Identification characters of Lepidoptera eggs (Insecta)

    Science.gov (United States)

    There are 160,000 species of described Lepidoptera, or moths and butterflies, on Earth. The egg stage is the least known biological stage of moths and butterflies and there have been very few comparative studies. The purpose of this video is to provide the few, major characteristics of Lepidoptera...

  12. Comparative radiosensitivity in the class insecta

    International Nuclear Information System (INIS)

    Willard, W.K.; Cherry, D.S.

    1975-01-01

    A 'radiosensitivity index' (LT 50 /mean longevity) was correlated with the mean longevity and dry weight of 37 insect species (both sexes of 12 species) representing eight orders. Curvilinear regression analysis relating radiosensitivity to mean longevity and mean dry weight indicated that 46.3% of the observed variation could be attributed to longevity and 32.6% to the dry weight of the species. In general, large long-lived adults were more radiosensitive than small short-lived adults. Correlation of the phylogeny of insect orders and order groupings with the radio-sensitivity index was found to be poor. However, when the index was related to longevity, there was a tendency for species comprising the major orders investigated to occur in groups along the predicted curve. (author)

  13. The phylogeny of Orussidae (Insecta: Hymenoptera) revisited

    DEFF Research Database (Denmark)

    Vilhelmsen, Lars

    2007-01-01

    The phylogeny of the parasitic wasp family Orussidae is analyzed with a slightly expanded version of a previously published data set. The basal splitting events in the family between two fossil taxa and the extant members are not unambiguously resolved. Intergeneric relationships in general...... are poorly supported and change under different analytical conditions. This corroborates earlier fi ndings regarding the phylogeny of the family. A resumé of the evolutionary history of the Orussidae is provided. Leptorussus madagascarensis sp.n. is described. Udgivelsesdato: 7/12...

  14. Origin of samples of Cannabis sativa through insect fragments associated with compacted hemp drug in South America

    Directory of Open Access Journals (Sweden)

    Marcos Patrício Macedo

    2013-06-01

    Full Text Available Origin of samples of Cannabis sativa through insect fragments associated with compacted hemp drug in South America. Insects associated with a seizure of Cannabis sativa L. may indicate the origin of the illicit drug. Nevertheless, no work regarding this subject has been previously published for South America. In the present investigation, seven kilograms of vegetal material (C. sativa were inspected for insect fragments. Three species were identified and used to test the origin of the seizure of cannabis plant material: Euschistus heros (Fabricius, 1794, Thyanta perditor (Fabricius, 1794 (Heteroptera, Pentatomidae, and Cephalotes pusillus (Klug, 1824 (Hymenoptera, Formicidae. These insect species restricted the geographic origin of the drug to the Neotropical region, and their distribution patterns showed an overlap of the State of Mato Grosso (Brazil, Argentina, and Paraguay. Based on this information, two of the three major C. sativa growing areas in South America were excluded: (1 the Colombian territory and (2 northeastern Brazil.

  15. Desenvolvimento do predador Podisus nigrispinus alimentado com Spodoptera frugiperda e Tenebrio molitor Development of the predator Podisus nigrispinus fed on Spodoptera frugiperda and Tenebrio molitor

    Directory of Open Access Journals (Sweden)

    Harley Nonato de Oliveira

    2004-10-01

    Full Text Available Ninfas de Podisus nigrispinus (Heteroptera: Pentatomidae têm sido criadas em laboratório com larvas de Tenebrio molitor L. (Coleoptera: Tenebrionidae. No entanto, não existem relatos sobre a predação, no campo ou em laboratório, de P. nigrispinus em Spodoptera frugiperda (Lepidoptera: Noctuidae, uma das principais pragas de inúmeras culturas no Brasil. Este trabalho teve o objetivo de avaliar o desenvolvimento ninfal e características reprodutivas do percevejo predador P. nigrispinus em lagartas de S. frugiperda e em larvas de T. molitor, em laboratório. A presa S. frugiperda proporcionou ao predador menor longevidade, maior produção e viabilidade de ovos do que as larvas de T. molitor. Esses resultados demonstram que a lagarta S. frugiperda melhora as características reprodutivas de P. nigrispinus, de forma que a sua utilização como presa alternativa pode servir para incrementar a produção massal desse inimigo natural.Nymphys of Podisus nigrispinus (Heteroptera: Pentatomidae have been reared on Tenebrio molitor L. (Coleoptera: Tenebrionidae, in laboratory conditions. However, there are no reports on P. nigrispinus predation, in field or laboratory, on Spodoptera frugiperda (Lepidoptera: Noctuidae, one of the most damaging pests in crops in Brazil. This research had the objective to evaluate nymphal development and reproductive characteristics of the predator P. nigrispinus when reared on caterpillars of S. frugiperda and on larvae of T. molitor, in laboratory conditions. S. frugiperda provided a smaller longevity, higher egg production and viability to predator than T. molitor. The nutricional quality of this caterpillar improves the reproductive characteristics of the predator, so that its utilization as factitious host can increase mass production of this natural enemy.

  16. Primeiro registro de Fulgurodes sartinaria (Lepidoptera: Geometridae em plantas de Eucalyptus cloeziana (Myrtaceae (Nota Científica. First record of Fulgurodes sartinaria (Lepidoptera: geometridae in Eucalyptus cloeziana (Myrtaceae (Scientific Note.

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    Claubert Wagner Guimarães de MENEZES

    2013-03-01

    Full Text Available O objetivo deste trabalho foi registrar a oviposição e o desenvolvimento de uma nova espécie de lepidóptera associada à Eucalyptus cloeziana F. Muell, 1878 (Myrtaceae. Ovos, imaturos e adultos de Fulgurodes sartinaria Guenée, 1858 (Lepidoptera: Geometridae foram encontrados em plantas de E. cloeziana no município de Itamarandiba, Minas Gerais, Brasil. Este trabalho é o primeiro registro desse desfolhador em plantas de eucalipto. Ninfas de Brontocoris tabidus Signoret, 1852 (Heteroptera: Pentatomidae foram também observadas predando as lagartas de F. sartinaria, isto indica que este predador poderá ser um potencial agente de controle biológico da espécie. A ocorrência de F. sartinaria ovipositando e se desenvolvendo em plantas de E. cloeziana mostra que este lepidóptero pode se tornar um desfolhador importante da espécie, sendo recomendável sua inclusão em monitoramentos de pragas do eucalipto visando seu manejo integrado.The aim of this study was to record the oviposition and development of a new species of lepidopteran pests of Eucalyptus cloeziana F. Muell, 1878 (Myrtaceae. Eggs, immatures and adults of Fulgurodes sartinaria Guenée, 1858 (Lepidoptera: Geometridae were found in plants of E. cloeziana in Itamarandiba, Minas Gerais state, Brazil. This work is the first record of this defoliator in eucalyptus plants. Nymphs of the Brontocoris tabidus Signoret, 1852 (Heteroptera: Pentatomidae have also been observed preying on the larvae of F. sartinaria, this indicates that this predator is a probable potential biological control agent of the species. The occurrence of F. sartinaria developing and laying eggs on plants of E. cloeziana shows that this insect can become an important defoliator and it is recommended its inclusion in monitoring pest of eucalyptus for integrated pest management.

  17. A new species of Eritrachys (Hemiptera: Pentatomidae: Ochlerini) from Ecuador (Especie nueva de Eritrachys (Hemiptera: Pentatomidae: Ochlerini) de Ecuador

    Science.gov (United States)

    A new species of to the genus Eritrachys Ruckes, E. brailovskyi, collected in Ecuador, is described and illustrated. The male of E. bituberculata Ruckes is described and illustrated, with new records from Panama and Ecuador. A key to the species of the genus is provided....

  18. Knowledge about useful entomofauna in the county of La Purísima Palmar de Bravo, Puebla State, Mexico

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    D. H. Zetina

    2007-06-01

    Full Text Available Eighteen species of edible insects belonging to 15 families of six orders of Insecta were recorded in the county of La Purísima Palmar de Bravo in Puebla State, Mexico. They had the following taxonomic distribution among the different families: Lygaeidae, Pentatomidae, Membracidae, Cercopidae, Psocidae, Melolonthidae, Curculionidae, Cossidae, Megathymidae, Pyralidae, Geometridae and Apidae, all with a single recorded species; the families Acrididae, Formicidae and Vespidae with two species in each family. The latter were the most abundant families, and Hymenoptera was the most salient order with five species. Three species were reported as new registers of edible insects for Mexico and also for the world. The nutritive value of insects in terms of macro and micronutrients is discussed.

  19. Wantsen van de Nederlandse waddeneilanden III (Hemiptera: Heteroptera)

    NARCIS (Netherlands)

    Aukema, B.; Hermes, D.

    2009-01-01

    De fauna van de Nederlandse waddeneilanden telde volgens het laatste overzicht 336 soorten. Een opsomming wordt gegeven van 158 nieuwe eilandrecords, waaronder 26 soorten, die voor het eerst voor de waddeneilanden worden vermeld. De miride Capsus pilifer wordt van de lijst afgevoerd. In totaal zijn

  20. Wantsen van de Nederlandse Waddeneilanden IV (Hemiptera: Heteroptera)

    NARCIS (Netherlands)

    Aukema, B.; Hermes, D.; Chen, P-p.; Nieser, N.

    2012-01-01

    Het laatste overzicht van de wantsen van de Nederlandse waddeneilanden dateert van 2004 met aanvullingen in 2009. Een opsomming wordt gegeven van 144 nieuwe eilandrecords, waaronder 12 soorten die voor het eerst op de waddeneilanden zijn waargenomen. Pachycoleus pusillimus (Dipsocoridae) is nieuw

  1. Two New Species of Trypanosomatid Parasites Isolated from Heteroptera

    Czech Academy of Sciences Publication Activity Database

    Maslov, D. A.; Yurchenko, V. Y.; Jirků, Milan; Lukeš, Julius

    2010-01-01

    Roč. 57, č. 2 (2010), s. 177-188 ISSN 1066-5234 Institutional research plan: CEZ:AV0Z60220518 Keywords : Blastocrithidia * kinetoplastid * Largidae * Leptomonas * Miridae * phylogeny * taxonomy * Trypanosomatidae Subject RIV: EB - Genetics ; Molecular Biology Impact factor: 2.397, year: 2010

  2. Distributional patterns of the American Peiratinae (Heteroptera: Reduviidae)

    NARCIS (Netherlands)

    Morrone, J.J.; Coscarón, del C M.

    1996-01-01

    Based on distributional data of 40 species of Peiratinae, historical relationships of five Amazonian areas (Paranaense, Atlantic, Pacific, Amazonian, and Cerrado) and two Chacoan areas (Chaco and Caatinga), were investigated through a parsimony analysis of endemicity (PAE). The resulting area

  3. The Tribe Anisoscelini (Hemiptera: Heteroptera, Coreidae) in Argentina.

    Science.gov (United States)

    Coscarón, María Del Carmen; Pall, José Luis

    2015-10-23

    Eight genera and 21 species of the tribe Anisoscelini (Coreidae, Coreinae) are recorded in Argentina: Anisoscelis foliaceus (Fabricius); Coribergia declivicollis (Berg); Dalmatomammurius vandoesburgi (Brailovsky); Holymenia hystrio (Fabricius); Leptoglossus chilensis (Spinola); L. cinctus (Herrich-Schaeffer); L. concolor Walker; L. crassicornis (Dallas); L. dentatus Berg; L. fasciatus (Westwood); L. gonagra (Fabricius); L. impictus (Stål); L. ingens (Mayr); L. neovexillatus Allen; L. quadricollis (Westwood); L. stigma (Herbst); L. vexillatus (Stål); L. zonatus (Dallas); Phthia lunata (Fabricius); Phthiacnemia picta (Drury) and Ugnius kermesinus (Linnaeus). A key to genera belonging to the tribe is provided. L. stigma is recorded for the first time in Argentina with new locality records for La Rioja, Salta and San Juan.

  4. Contamination as the Cause of Erroneous Records of Brochosomes

    Directory of Open Access Journals (Sweden)

    Roman Rakitov

    2011-01-01

    Full Text Available Brochosomes are ultramicroscopic particles produced in large quantities by the Malpighian tubules of leafhoppers (Insecta, Hemiptera, and Cicadellidae and applied by leafhoppers as a coat to their integuments. A recent study has described brochosomes on museum specimens of Heteroptera and Psylloidea, suggesting a wider distribution of brochosomes among Hemiptera. Here, I report that the majority of adult Sthenarus rotermundi (Scholtz (Miridae and Kleidocerys resedae (Panzer (Lygaeidae reared in captivity and handled with clean tools had no brochosomes on them, suggesting that the earlier records of brochosomes in these and perhaps other species outside of the Cicadellidae were due to contamination. Additionally, simple experiments demonstrated that insects can become contaminated with brochosomes via entomological tools that had been in contact with leafhoppers and via preservation in ethanol together with leafhoppers. Contamination of host plants, predators, and parasites of leafhoppers with brochosomes is also expected but remains to be demonstrated.

  5. Cuatro especies nuevas de Lattinestus (Hemiptera: Heteroptera: Cydnidae: Amnestinae Four new species of Lattinestus (Hemiptera: Heteroptera: Cydnidae: Amnestinae

    Directory of Open Access Journals (Sweden)

    María Cristina Mayorga-Martínez

    2012-12-01

    Full Text Available Se describen 4 especies nuevas de Lattinestus de Guatemala (2 y de México (2; se incluyen ilustraciones de algunas estructuras importantes para su identificación y una clave para separar las 7 especies conocidas. La mayoría de los ejemplares fueron recolectados en hojarasca de bosques mesófilos por arriba de los 2 500 metros.Four new species from Guatemala (2 and Mexico (2 are described; illustrations of important structures for identification, and a key to separate the 7 known species are included. Most of the specimens were collected in forest litter above 2 500 m.

  6. Ciclo de vida de Anasa litigiosa (Hemiptera: Heteroptera: Coreidae Life cycle of Anasa litigiosa (Hemiptera: Heteroptera: Coreidae

    Directory of Open Access Journals (Sweden)

    Adriana Chacón-López

    2012-06-01

    Full Text Available El objetivo de este trabajo es el estudio del ciclo de vida de Anasa litigiosa Stål. Se recolectaron ejemplares adultos de esta especie que se encontraban sobre plantas de chayote y fueron cultivados en el laboratorio utilizando hojas, tallos y frutos de la misma planta. Se describen e ilustran en detalle todos los estadios de vida, incluyendo notas sobre su biología. Anasa litigiosa se ha recolectado sobre bromeliáceas y cucurbitáceas y es una plaga importante de estas últimas.The aim of this work was the study of the life cycle of Anasa litigiosa Stål. Adults were collected on chayote and they were reared in laboratory using leaves, stems and fruits of chayote. Descriptions and illustrations of all instars of, and notes on its biology are included. This species has been collected in bromeliads and on cucurbits, it is an important pest of cucurbits in Mexico.

  7. Sensory response of the egg parasitoid Telenomus podisi to stimuli from the bug Euschistus heros Resposta sensorial do parasitóide de ovos Telenomus podisi a estímulos provenientes do percevejo Euschistus heros

    Directory of Open Access Journals (Sweden)

    Cleonor Cavalcante Silva

    2006-07-01

    Full Text Available The objective of this work was to study the foraging behavior of Telenomus podisi Ashmead (Hymenoptera: Scelionidae in the presence of stimuli from its host, Euschistus heros (Heteroptera: Pentatomidae. The stimuli selected were: egg mass; virgin males and females; volatile extracts of sexually mature males and females; components of male sex pheromone; a component of the alarm pheromone, hexane and an empty cage as control. In a closed arena, the parasitoids were given the choice between single and combined stimuli presented to them simultaneously. To find the host egg, T. podisi primarily uses the sensory cues released from the male insects. The orientation toward odors of male chemical extract indicates that a source of kairomone was detected. Gas chromatographic analyses of this substance showed peak of methyl 2,6,10-trimethyltridecanoate, the main component of male sexual pheromone. The sensory response to methyl 2,6,10-trimethyltridecanoate confirms that this compound may act as a kairomone to find host eggs. Females and egg mass stimuli were weakly attractive to the parasitoid.O objetivo deste trabalho foi estudar o comportamento de busca de Telenomus podisi Ashmead (Hymenoptera: Scelionidae, em presença de estímulos provenientes do hospedeiro Euschitus heros (Heteroptera: Pentatomidae. As fontes de estímulos utilizadas foram: massas de ovos, machos e fêmeas virgens, extratos químicos de machos e fêmeas sexualmente maduros, componentes sintéticos do feromônio sexual do macho de E. heros, um composto sintético do feromônio de alarme, hexano e uma gaiola vazia como controle. Os testes foram conduzidos em arenas, onde foi dada a oportunidade para os parasitóides escolherem entre estímulos isolados e estímulos combinados. Para encontrar o hospedeiro, T. podisi utiliza principalmente estímulos olfativos emitidos pelos machos. As respostas sensoriais aos odores liberados pelos extratos químicos do macho indicam que uma fonte de

  8. AVALIAÇÃO DE PERDAS CAUSADAS POR Oebalus spp. (HEMIPTERA: PENTATOMIDAE EM ARROZ DE TERRAS ALTAS EVALUATION OF UPLAND RICE LOSSES CAUSED BY Oebalus spp. (HEMIPTERA: PENTATOMIDAE

    Directory of Open Access Journals (Sweden)

    Daniela Rézio e Silva

    2007-09-01

    Full Text Available

    Para determinar o efeito dos percevejos Oebalus poecilus e O. ypsilongriseus sobre o rendimento e a qualidade dos grãos de arroz de terras altas, panículas de cinco cultivares foram infestadas, isoladamente, pelos seguintes níveis populacionais: zero (tratamento testemunha, dois insetos adultos da primeira espécie, dois insetos adultos da segunda espécie e um inseto adulto de cada espécie. A comparação das cultivares pelas porcentagens de perda de massa por espigueta e de espiguetas vazias não apresentou efeitos diferenciados entre tratamentos, nem interação "tratamentos x cultivares" significativa. A avaliação da atividade alimentar, pela presença de bainhas de estilete, mostrou que o percevejo O. ypsilongriseus foi mais ativo que O. poecilus. Esses afetaram de modo diferente o vigor das cultivares, entretanto, não influenciaram o teor de amilose. Os percevejos também reduziram o rendimento total de arroz beneficiado e aumentaram o número de grãos inteiros manchados, apesar de não terem alterado o número total de grãos inteiros.

    PALAVRAS-CHAVE: Inseto; percevejo das panículas; bainha de estilete.

    To determine the effect of Oebalus poecilus and O. ypsilongriseus on grain yield and quality of five upland rice cultivars, isolated panicles were subjected to four levels of infestation (number of adult insects: zero (control treatment, two O. poecilus, two O. ypsilongriseus and one O. poecilus plus one O. ypsilongriseus. Neither the treatments nor the interaction of the treatments with cultivars had significant effects on percentages of weight loss and empty spikelets. Insect activity, evaluated by the presence of feeding sheaths in the spikelets, demonstrated that O. ypsilongriseus was more active than O. poecilus. Plant vigor was also affected differently according to insect species; however, no differences were observed in grain amylose content. Insect infestation reduced total grain milling yield and increased the number of damaged spikelets but did not alter the percentage of whole kernels.

    KEY-WORDS: Insect; paddy bug; stylet sheath.

  9. Genome size of 14 species of fireflies (Insecta, Coleoptera, Lampyridae

    Directory of Open Access Journals (Sweden)

    Gui-Chun Liu

    2017-11-01

    Full Text Available Eukaryotic genome size data are important both as the basis for comparative research into genome evolution and as estimators of the cost and difficulty of genome sequencing programs for non-model organisms. In this study, the genome size of 14 species of fireflies (Lampyridae (two genera in Lampyrinae, three genera in Luciolinae, and one genus in subfamily incertae sedis were estimated by propidium iodide (PI-based flow cytometry. The haploid genome sizes of Lampyridae ranged from 0.42 to 1.31 pg, a 3.1-fold span. Genome sizes of the fireflies varied within the tested subfamilies and genera. Lamprigera and Pyrocoelia species had large and small genome sizes, respectively. No correlation was found between genome size and morphological traits such as body length, body width, eye width, and antennal length. Our data provide additional information on genome size estimation of the firefly family Lampyridae. Furthermore, this study will help clarify the cost and difficulty of genome sequencing programs for non-model organisms and will help promote studies on firefly genome evolution.

  10. A contribution to mayfly studies of Western Mongolia (Insecta, Ephemeroptera

    Directory of Open Access Journals (Sweden)

    Bolortsetseg Erdenee

    2016-12-01

    Full Text Available Streams in the Mongolian Altai Mountains are mostly fed from glaciers and are extreme conditions for mayflies because of high elevation, low temperatures and low annual precipitation. Previous information about mayflies of Western Mongolia is scarce, but with this study a total of 38 species belonging to 26 genera and subgenera and 8 families of mayflies has been recorded in the Mongolian Altai region. Study material was entirely imagos and collected from 78 sites during expeditions led by the Mongolian Aquatic Insect Survey in 2008, 2009 and 2010. Raptobaetopus tenellus, Caenis luctuosa and C. rivulorum are recorded as new to the fauna of Mongolia, and there are new distribution records for Ameletus montanus, Baetis (Acentrella lapponica, Baetis sibiricus, Baetis (Labiobaetis attrebatinus, Centroptilum luteolum, Procloeon pennulatum, Ephemerella aurivillii, Serratella setigera, Ephemera sachalinensis, Ecdyonurus (Afronurus abracadabrus, Cinygmula kurenzovi, Ecdyonurus (Afghanurus vicinus and Epeorus (Belovius pellucidus from the Mongolian Altai region. Baetis vernus and Ephemerella aurivillii are the most frequently encountered species in this region.

  11. Fossil Chironomidae (Insecta: Diptera) as Paleothermometers in the African Tropics

    Science.gov (United States)

    Eggermont, H.; Heiri, O.; Russell, J.; Vuille, M.; Audenaert, L.; Klaassen, G.; Verschuren, D.

    2008-12-01

    Reconstruction of Africa's temperature history from natural climate archives such as lake sediments is essential to amend the current scarcity of information on natural tropical climate and ecosystem variability. Chironomids are well-established paleothermometers in north-temperate/boreal regions, but their potential in tropical lakes has never before been assessed. We surveyed sub-fossil chironomid assemblages in surface sediments from 65 lakes and permanent pools in southwestern Uganda and central/southern Kenya, spanning elevations between 489 and 4575 m asl. Using various subsets of lakes and corresponding Surface-Water Temperatures (SWTemp) and Mean Annual Air Temperatures (MATemp), we developed a series of inference models for quantitative paleotemperature reconstruction. Models using both low-, mid- and high-elevation sites suffer to some extent from the small number of samples between 2500 and 3500 m asl, and from the presence of ecologically distinct but morphologically indistinguishable taxa. Models confined to mountain sites produce poorer error statistics, but are less prone to the biogeographical and taxonomic complexities associated with long climatic gradients. Overall, error statistics compare favourably with those of inference models developed for temperate regions, indicating that fossil assemblages of African Chironomidae can be valuable indicators of past temperature change. We subsequently used these models to evaluate whether high-elevation lakes in the Rwenzori Mountains (>3000 m asl) have been impacted by climate warming in recent centuries by comparing temperatures inferred from chironomid assemblages in modern sediments with those derived from chironomid assemblages in sediments deposited within or briefly after the Little Ice Age (1270-1850 AD). Depending on the model used, between 44 and 63% of the 16 lakes studied indicate significantly warmer temperatures in recent times (corresponding with an average MATemp rise of 0.88 ° C, and average SWTemp rise of 1.33 ° C), while all but one of the other lakes show temperature changes that are statistically insignificant. We conclude that chironomid communities in Rwenzori lakes adequately record past temperature changes, with potential for evaluating the impacts of past air temperature variation on the long-term dynamics of the Rwenzori glaciers.

  12. Deux nouveaux Ctenophthalmus (Insecta : Siphonaptera : Ctenophthalmidae de Tanzanie

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    Laudisoit A.

    2007-06-01

    Full Text Available Lors d’une étude épidémiologique du foyer pesteux de Lushoto, quelques puces rares ou nouvelles ont été collectées. Nous décrivons ici l’une d’entre elles, Ctenophthalmus (Ethioctenophthalmus teucqae n. sp. L’examen de spécimens de comparaison déposés au National History Museum (Londres, nous permet d’en créer une sous-espèce, C. (E. teucqae shumeensis n. ssp.

  13. Key to Plecoptera nymphs from the Brazilian Amazon (Insecta).

    Science.gov (United States)

    Ribeiro, José Moacir Ferreira; Gorayeb, Inocêncio DE Sousa

    2016-12-19

    Nymphs of 22 species of Plecoptera from the Brazilian Amazon are keyed and illustrated to enhance their usefulness as water quality indicator taxa. Four described species of Anacroneuria, two species of Macrogynoplax, and two species of Enderleina have been associated with adults: Anacroneuria marlieri, A. manauensis, A. minuta, A. singularis, M. delicata, M. pulchra, E. froehlichi, and E. flinti. Nymphs of 14 additional morphospecies not yet associated with adults are included. Characters of the head, pronotum, mesonotum, and metanotum are used to distinguish late instar nymphs.

  14. An annotated checklist of the Greek Stonefly Fauna (Insecta: Plecoptera).

    Science.gov (United States)

    Karaouzas, Ioannis; Andriopoulou, Argyro; Kouvarda, Theodora; Murányi, Dávid

    2016-05-17

    An overview of the Greek stonefly (Plecoptera) fauna is presented as an annotated index of all available published records. These records have resulted in an updated species list reflecting current taxonomy and species distributions of the Greek peninsula and islands. Currently, a total of 71 species and seven subspecies belonging to seven families and 19 genera are reported from Greece. There is high species endemicity of the Leuctridae and Nemouridae, particularly on the Greek islands. The endemics known from Greece comprise thirty species representing 42% of the Greek stonefly fauna. The remaining taxa are typical Balkan and Mediterranean species.

  15. Diversity and distribution of the Caddisflies (Insecta: Trichoptera of Ecuador

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    Blanca Ríos-Touma

    2017-01-01

    Full Text Available Background Aquatic insects and other freshwater animals are some of the most threatened forms of life on Earth. Caddisflies (Trichoptera are highly biodiverse in the Neotropics and occupy a wide variety of freshwater habitats. In Andean countries, including Ecuador, knowledge of the aquatic biota is limited, and there is a great need for baseline data on the species found in these countries. Here we present the first list of Trichoptera known from Ecuador, a country that harbors two global biodiversity “hotspots.” Methods We conducted a literature review of species previously reported from Ecuador and supplemented these data with material we collected during five recent field inventories from about 40 localities spanning both hotspots. Using species presence data for each Ecuadorian province, we calculated the CHAO 2 species estimator to obtain the minimum species richness for the country. Results We recorded 310 species, including 48 new records from our own field inventories for the country. CHAO 2 calculations showed that only 54% of the species have been found. Hydroptilidae and Hydropsychidae were the most species rich families. We report the family Xiphocentronidae for the first time from Ecuador as well as several new records of genera from different families. Discussion As in the neighboring Andean countries of Colombia and Peru, it is common to find undescribed species of caddisflies. There are vast areas of Ecuador and the northern Andes that are completely unexplored, and we expect that hundreds of new species are yet to be discovered.

  16. Diversity and distribution of the Caddisflies (Insecta: Trichoptera) of Ecuador

    OpenAIRE

    Blanca Ríos-Touma; Ralph W. Holzenthal; Jolanda Huisman; Robin Thomson; Ernesto Rázuri-Gonzales

    2017-01-01

    Background Aquatic insects and other freshwater animals are some of the most threatened forms of life on Earth. Caddisflies (Trichoptera) are highly biodiverse in the Neotropics and occupy a wide variety of freshwater habitats. In Andean countries, including Ecuador, knowledge of the aquatic biota is limited, and there is a great need for baseline data on the species found in these countries. Here we present the first list of Trichoptera known from Ecuador, a country that harbors two global b...

  17. Potential Positive Effects of Pesticides Application on (Walker (Lepidoptera: Insecta

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    Guo-Qing Yang

    2014-01-01

    Full Text Available In China, the pink stem borer (PSB Sesamia inferens (Walker (Lepidoptera: Noctuidae has become a rice pest in some rice-producing regions. The cause of this shift from secondary to major pest is unknown. The major purpose of this study was to examine the effect of five commonly used pesticides in rice fields on reproduction of PSB and on biochemical substances of rice plants. The results showed that the weight of pupae developed from 1st instar larvae treated with 2 mg/L triazophos and the number of eggs laid by emerged females from the treatment were significantly greater than those of the control, increasing by 26.2% and 47%, respectively. In addition, a nontarget insecticide, pymetrozine 100 mg/L, and a target insecticide, chlorantraniliprole 2 mg/L, stimulated reproduction of PSB. Biochemical measurement showed that foliar sprays of these pesticides resulted in significant reductions of contents of resistant substances, flavonoids and phenolic acids, in rice plants. For example, flavonoids and phenolic acids of rice plants treated with triazophos reduced by 48.5% and 22.4%, respectively, compared to the control. Therefore, we predicted that the application of some pesticides, eg triazophos and chlorantraniliprole, may be the cause of the increase in the population numbers of PSB in rice fields.

  18. Description of the Puparium of Protocalliphora nourtevai (Insecta: Diptera: Calliphoridae)

    Czech Academy of Sciences Publication Activity Database

    Jamriška, J.; Modrý, David

    2013-01-01

    Roč. 99, č. 5 (2013), s. 896-898 ISSN 0022-3395 Institutional support: RVO:60077344 Keywords : breeding success * Avian blowflies * blood Subject RIV: EA - Cell Biology Impact factor: 1.258, year: 2013

  19. New species of Compsocidae (Insecta, Psocodea) from Cretaceous Burmese amber

    Czech Academy of Sciences Publication Activity Database

    Sroka, Pavel; Nel, A.

    2017-01-01

    Roč. 4320, č. 3 (2017), s. 597-600 ISSN 1175-5326 Institutional support: RVO:60077344 Keywords : Psocoptera * Troctomorpha * Burmacompsocus Subject RIV: EG - Zoology OBOR OECD: Zoology Impact factor: 0.972, year: 2016 https://biotaxa.org/Zootaxa/article/view/zootaxa.4320.3.12

  20. Identification to Lepidoptera Superfamily-under the microscope (Insecta)

    Science.gov (United States)

    There are 160,000 species of described Lepidoptera, or moths and butterflies, on Earth, although it is estimated that the number is closer to 500,000 species. Many moths from all over the world are intercepted at U.S. ports on a wide variety of economically important commodities. The purpose of t...

  1. Nomenclatural problems among Thysanoptera (Insecta of Costa Rica

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    Arturo Goldarazena

    2008-06-01

    Full Text Available We present data to argue that several recent papers on the Thysanoptera of Costa Rica are affected by unsatisfactory technical procedures, including failure to recognize intraspecific structural variation. Fourteen new synonyms are recognized for Costa Rica Thysanoptera, nine generic and five specific. Rev. Biol. Trop. 56 (2: 961-968. Epub 2008 June 30.Presentamos datos para apoyar nuestro argumento de que varios artículos recientes sobre los Thysanoptera de Costa Rica se han visto afectados por procedimientos técnicos insatisfactorios, incluyendo el no reconocer la variación estructural intraespecífica. Presentamos nueve sinonimias en los tisanópteros de Costa Rica: nueve a nivel de género y cinco a nivel de especie.

  2. Odonata (Insecta at a wadi Pool near Nizwa, northern Oman

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    Elaine M. Cowan

    2015-07-01

    Full Text Available Fourteen damselfly and dragonfly species were recorded in 68 visits to a wadi pool in northern Oman, March 2012 to June 2014.  All identifications were based on photographs.  Apparently the pool has a core community of eight resident species.  Paragomphus sinaiticus, globally Near Threatened, was regularly  recorded. 

  3. Trichoptera hydroptilidae (Insecta) from Soviet Union Far-Eastern territories

    NARCIS (Netherlands)

    Botosaneanu, L.; Levanidova, I.M.

    1988-01-01

    This is a contribution to the study of the scarcely known Trichoptera Hydroptilidae from Soviet Far-East (Primorye, Amur River basin, Kuril Islands, Kamtschatka, Chukotka). The discovery of a new species of Stactobia McL. on Kunashir Island, very far from the known distribution area of the genus,

  4. The complete mitochondrial genome of Chrysopa pallens (Insecta, Neuroptera, Chrysopidae).

    Science.gov (United States)

    He, Kun; Chen, Zhe; Yu, Dan-Na; Zhang, Jia-Yong

    2012-10-01

    The complete mitochondrial genome of Chrysopa pallens (Neuroptera, Chrysopidae) was sequenced. It consists of 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA (rRNA) genes, and a control region (AT-rich region). The total length of C. pallens mitogenome is 16,723 bp with 79.5% AT content, and the length of control region is 1905 bp with 89.1% AT content. The non-coding regions of C. pallens include control region between 12S rRNA and trnI genes, and a 75-bp space region between trnI and trnQ genes.

  5. Webspinners in Early Eocene amber from western India (Insecta, Embiodea

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    Michael Engel

    2011-11-01

    Full Text Available The family Scelembiidae (Neoembiodea: Embiomorpha: Archembioidea is recorded from Asia for the first time, based on two individuals preserved in Early Eocene amber from the Cambay Basin, western India. Kumarembia hurleyi Engel & Grimaldi, gen. n. et sp. n., is described, figured, and distinguished from other archembioid genera. The genus shares male genitalic features with scelembiids, otherwise known from South America and Africa.

  6. Biological diversity of the Minnesota caddisflies (Insecta, Trichoptera

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    David Houghton

    2012-05-01

    Full Text Available The caddisfly fauna of Minnesota contains at least 277 species within 21 families and 75 genera. These species are based on examination of 312,884 specimens from 2,166 collections of 937 Minnesota aquatic habitats from 1890 to 2007. Included in these totals is my own quantitative sampling of 4 representative habitat types: small streams, medium rivers, large rivers, and lakes, from each of the 58 major Minnesota watersheds from June through September during 1999–2001. All species are illustrated herein, and their known Minnesota abundances, distributions, adult flight periodicities, and habitat affinities presented. Four species: Lepidostoma griseum (Lepidostomatidae, Psilotreta indecisa (Odontoceridae, and Phryganea sayi and Ptilostomis angustipennis (Phryganeidae are added to the known fauna. An additional 31 dubious species records are removed for various reasons. Of the 5 determined caddisfly regions of the state, species richness per watershed was highest in the Lake Superior and Northern Regions, intermediate in the Southeastern, and lowest in the Northwestern and Southern. Of the 48 individual collections that yielded >40 species, all but 1 were from the Northern Region. Many species, especially within the families Limnephilidae and Phryganeidae, have appeared to decrease in distribution and abundance during the past 75 years, particularly those once common within the Northwestern and Southern Regions. Many species now appear regionally extirpated, and a few have disappeared from the entire state. The loss of species in the Northwestern and Southern Regions, and probably elsewhere, is almost certainly related to the conversion of many habitats to large-scale agriculture during the mid-20th century.

  7. Diseminación de enteroparasitos por Calliphoridae (Insecta, Diptera Disemination of enteroparasites by Calliphoridae (Insecta, Diptera

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    Juan C. Mariluis

    1989-01-01

    Full Text Available It is establish the dissemination enteroparasite by Calliphoridae in a district situated around by Federal Capital of Argentina. The species implicated in this dispersal are: Phaenicia sericata (meigen, 1826; Calliphora vicina Robineau-Desvoidy, 1830; Chrysomya chloropyga (Wiedemann, 1818 and Phaenicia eximia (Wiedemann, 1819. Fifty two flies was studies, thirty four (65% to belong at the family Calliphoridae. Of this thirteen (38% have eggs of taeniid and cysts of Entamoeba coli (Grassi, 1879 and Giardia lamblia Styles, 1915.

  8. ОХРАНЯЕМЫЕ В БЕЛАРУСИ ВИДЫ ЧЕШУЕКРЫЛЫХ НАСЕКОМЫХ (INSECTA: LEPIDOPTERA В ЛАНДШАФТНОМ ЗАКАЗНИКЕ «ЗВАНЕЦ»

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    A. V. Kulak

    2015-08-01

    Full Text Available Приведены сведения о распространении, численности, местах обитания, фенологии 16 видов чешуекрылых насекомых (Insecta: Lepidoptera, обитающих на территории ландшафтного заказника «Званец» (Беларусь, Брестская область, включенных в Красную книгу Республики Беларусь: Rhyparioides metelkana, Pericallia matronula, Callimorpha dominula, Arytrura musculus, Diachrysia zosimi, Chariaspilates formosaria, Scopula caricaria, Gagitodes sagittata, Lycaena dispar, Euphydryas aurinia, Eu. maturna, Melitaea phoebe, M. diamina, M. aurelia, M. britomartis, Coenonympha oedippus. Сведения относительно обитания в заказнике Parnassius mnemosyne предложено считать недостоверными. Также дана информация о Polyommatus daphnis, который ранее был охраняемым видом. Обсуждается влияние выжигания тростника на состояние данных видов в заказнике. Ключевые слова: чешуекрылые, меры охраны, Красная книга, заказник, палы растительности, Беларусь.

  9. Cinco especies nuevas de Pselliopus (Hemiptera: Heteroptera: Reduviidae: Harpactorinae: Harpactorini para México Five new species of Pselliopus (Hemiptera: Heteroptera: Reduviidae: Harpactorinae from Mexico

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    Harry Brailovsky

    2007-06-01

    Full Text Available Se describen 5 especies nuevas de Pselliopus Bergroth (Reduviidae: Harpactorinae recolectadas en México (Guerrero, Hidalgo, Jalisco, Michoacán, Nayarit, Nuevo León, Oaxaca, Puebla, Querétaro, San Luis Potosí, Sinaloa, Sonora y Tamaulipas y en los Estados Unidos de América (Arizona. Pselliopus karlenae Hussey se registra por primera vez para la República Mexicana. Se ilustran caracteres diagnósticos del pronoto, del borde posterior del segmento abdominal VII, de la cápsula genital del macho (pigóforo y parámeros. Se incluye una clave para la identificación de las especies basada principalmente en los genitales masculinos.Five new species of Pselliopus Bergroth (Reduviidae: Harpactorinae from Mexico (Guerrero, Hidalgo, Jalisco,Michoacán, Nayarit, Nuevo León, Oaxaca, Puebla, Querétaro, San Luis Potosí, Sinaloa, Sonora and Tamaulipas and from the United States of America (Arizona are described. Pselliopus karlenae Hussey is a new record for Mexico. Diagnostic taxonomic characters of pronotum, posterior border of abdominal segment VII, male genital capsule (pygophore and parameres are illustrated. An identification key based mainly on the male genitalia is included.

  10. Description of a new species of Pleseobyrsa (Heteroptera: Tingidae from Costa Rica Descripción de una nueva especie de Pleseobyrsa (Heteroptera: Tingidae de Costa Rica

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    Sara I. Montemayor

    2011-06-01

    Full Text Available A new Pleseobyrsa, P. persea n. sp. is described for Costa Rica. The host plant of this new species is Persea americana P. Mill. This corresponds to the second species of the genus known for the country and the third whose host plant is P. americana (avocado. A description of the adult as well as of instar V are provided, together with a key to species, photographs taken in the field, and illustrations of the fifth nymph stage, adult, and the main characters.Se describe una especie nueva de Pleseobyrsa, P. persea n. sp. de Costa Rica, cuya planta huésped es Persea americana P. Mill., siendo ésta la segunda especie del género conocida del país y la tercera cuya planta huésped es P. americana (aguacate. Se describen tanto el adulto como el estadio ninfal V; se agrega una clave modificada de Froeschner para las especies, y se ilustran ejemplares en el campo, el quinto estadio ninfal, adulto y los principales caracteres.

  11. Natural lectin activity in the haemolymph of Panstrogylus megistus (Heteroptera: Reduvidae Atividade lectínica na hemolinfa de Panstrongylus megistus (Heteroptera: Reduviidae

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    Y. M. Gomes

    1988-12-01

    Full Text Available The haemolymph of Panstrongylus megistus showed a natural lectin activity for a wide range of vertebrate erythocytes. Agglutination was observed against all vertebrate erythrocytes tested (human ABO, duck, rabbit, mouse, sheep, chicken and cow. Cow erythrocytes showed the lowest titre. Concerning human erythrocytes, the lectin activity was similar in the types A+,B+ and AB+ while the highest activity was observed in the type O+. Determination of minimal inhibitory concentrations was carried out with human erythrocytes type O+. Agglutination was inhibited by several carbohydrates (rhamnose. D-galatose, raffinose, D-lactose and D-fucose. Rhamnose wasreported as the strongest inhibitor (0.78mM. The results suggest the presence of more than one lection in the haemolymph of P. megistus.A hemolinfa de Panstrongylus megistus mostrou uma atividade lectínica natural para eritrócitos de vários vertebrados e não mostrou especificidade para os diversos tipos de eritrócitos testados (humano ABO, pato, coelho,c amundongo,carneiro, galinha e boi. Com relação aos eritrócitos humanos a atividade lectínica foi similar nos tipos A+, B+ e AB+ enquanto a atividade mais alta foi observada no tipo O+. O título de aglutinação entre eritrócitos animais não mostrou diferença apreciável, excluindo eritrócitos de boi, que apresentaram o título mmais baixo. A determinação da concentração mínima de inibição foi realizada com eritrócitos humanos O+. A aglutinação foi inibida por vários carboidratos (ramnose, D-dalactose, rafinose, D-lactose e D-fucose. A ramnose foi o inibidor mais potente (0,78 mM. Os resultados sugerem a presença de mais de uma lectina na hemolinfa de P. megistus.

  12. Plantas cultivadas e invasoras como habitat para predadores do gênero Orius(Wolff (Heteroptera: anthocoridae Crops and weeds as host plants Orius species (Heteroptera: anthocoridae

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    Luís Cláudio Paterno Silveira

    2003-01-01

    Full Text Available O objetivo deste trabalho foi registrar as espécies de Orius associadas a plantas cultivadas e invasoras presentes em uma localidade de Minas Gerais e três de São Paulo, nos anos de 1999 e 2000. As coletas foram realizadas através de batidas das plantas no interior de sacos plásticos para desalojar os insetos. Posteriormente, as espécies foram separadas em laboratório. O predador Orius insidiosus (Say foi coletado nas culturas de milho (Zea mays L., milheto (Pennisetum glaucum (L. R.Br., sorgo (Sorghum spp., feijão (Phaseolus vulgaris L., girassol (Helianthus annuus L., alfafa (Medicago sativa L., soja [Glycine max (L. Merr.], crisântemo (Chrysanthemum spp., tango (Solidago canadensis L. e cartamus (Carthamus tinctorius L. e nas plantas invasoras picão-preto (Bidens pilosa L., caruru (Amaranthus sp., losna-branca (Parthenium hysterophorus L. e apaga-fogo (Alternanthera ficoidea L.. Orius thyestes Herring foi encontrado nas plantas invasoras picão-preto, caruru e apaga-fogo. Orius perpunctatus (Reuter e Orius sp. foram coletados principalmente nas plantas invasoras picão-preto, caruru e apaga-fogo e no milho. Constatou-se que muitas dessas plantas são reservatórios naturais para esses predadores, em termos de habitat, abrigo, presas e pólen.The aim of this research was to record the Orius species present on some crops and weeds in areas located in the southeast region in Brazil, during 1999 and 2000. The insect collections were made through the tapping method to dislodge the insects from the plant into a plastic bag. The identifications of the specimens was done in the laboratory. Orius insidiosus (Say was collected on the following crops: corn (Zea mays L., pearl millet (Pennisetum glaucum (L. R.Br., sorghum (Sorghum spp., bean (Phaseolus vulgaris L., sunflower (Helianthus annuus L., alfalfa (Medicago sativa L., soybean (Glycine max (L. Merr., chrysanthemum (Chrysanthemum spp., tango (Solidago canadensis L. and carthamus (Carthamus tinctorius L.. On weeds, O. insidiosus was found on farmer's friend (Bidens pilosa L., amaranth (Amaranthus sp., parthenium weed (Parthenium hysterophorus L. and Joseph's coat (Alternanthera ficoidea L.. Orius thyestes Herring was found on weed plants farmer's friend, amaranth and Joseph's coat. Orius perpunctatus (Reuter and Orius sp. were collected mainly on weed plants (farmer's friend, amaranth and Joseph's coat and corn. Many of these plants are natural hosts for these predators, providing refuge, prey and pollen.

  13. Inter and intra-guild interactions in egg parasitoid species of the soybean stink bug complex

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    Sujii Edison Ryoiti

    2002-01-01

    Full Text Available The objective of this research was to evaluate the parasitism behavior of Telenomus podisi Ashmead, Trissolcus basalis (Wollaston e Trissolcus urichi Crawford (Hymenoptera: Scelionidae on eggs of Nezara viridula L., Euschistus heros F., Piezodorus guildinii Westwood and Acrosternum aseadum Rolston (Heteroptera: Pentatomidae, in no choice and multiple choice experiments. For all parasitoid species, the results demonstrated the existence of a main host species that maximizes the reproductive success. The competitive interactions among the parasitoid species were investigated in experiments of sequential and simultaneous release of different combinations of parasitoid pairs on the hosts N. viridula, E. heros and A. aseadum. Exploitative competition was observed for egg batches at the genus level (Telenomus vs. Trissolcus and interference competition at the species level (T. basalis vs. T. urichi. Trissolcus urichi was the most aggressive species, interfering with the parasitism of T. basalis. Generally, T. basalis showed an opportunistic behavior trying to parasitise eggs after T. urichi had abandoned the egg batch. The selection of parasitoid species for use in augmentative biological control programs should take into account the diversity of pentatomids present in soybean in addition to the interactions among the different species of parasitoids.

  14. Sexual Success after Stress? Imidacloprid-Induced Hormesis in Males of the Neotropical Stink Bug Euschistus heros

    Science.gov (United States)

    Haddi, Khalid; Mendes, Marcos V.; Lino-Neto, José; Freitas, Hemerson L.; Guedes, Raul Narciso C.; Oliveira, Eugênio E.

    2016-01-01

    Environmental stress in newly-emerged adult insects can have dramatic consequences on their life traits (e.g., dispersion, survival and reproduction) as adults. For instance, insects sublethally exposed to environmental stressors (e.g., insecticides) can gain fitness benefits as a result of hormesis (i.e., benefits of low doses of compounds that would be toxic at higher doses). Here, we experimentally tested whether sublethal exposure to the insecticide imidacloprid would hormetically affect the sexual fitness of newly-emerged adults of the Neotropical brown stink bug Euschistus heros (Hemiptera: Heteroptera: Pentatomidae), which is the most abundant and prevalent insect pest in Neotropical soybean fields. We evaluated the sexual fitness of four couple combinations: unexposed couples, exposed females, exposed males, and exposed couples. Sublethal exposure to dry residues (i.e., contact) of imidacloprid (at 1% of recommended field rate) did not affect insect survival, but led to higher mating frequencies when at least one member of the couple was exposed. However, the average mating duration was shortened when only females were exposed to imidacloprid. Moreover, exposed males showed higher locomotory (walking) activity, lower respiration rates and induced higher fecundity rates when mated to unexposed females. Although the reproductive tracts of exposed males did not differ morphometrically from unexposed males, their accessory glands exhibited positive reactions for acidic and basic contents. Our findings suggest that males of the Neotropical brown stink bug hormetically increase their sexual fitness when cued by impending insecticidal stress in early adulthood. PMID:27284906

  15. Sexual Success after Stress? Imidacloprid-Induced Hormesis in Males of the Neotropical Stink Bug Euschistus heros.

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    Khalid Haddi

    Full Text Available Environmental stress in newly-emerged adult insects can have dramatic consequences on their life traits (e.g., dispersion, survival and reproduction as adults. For instance, insects sublethally exposed to environmental stressors (e.g., insecticides can gain fitness benefits as a result of hormesis (i.e., benefits of low doses of compounds that would be toxic at higher doses. Here, we experimentally tested whether sublethal exposure to the insecticide imidacloprid would hormetically affect the sexual fitness of newly-emerged adults of the Neotropical brown stink bug Euschistus heros (Hemiptera: Heteroptera: Pentatomidae, which is the most abundant and prevalent insect pest in Neotropical soybean fields. We evaluated the sexual fitness of four couple combinations: unexposed couples, exposed females, exposed males, and exposed couples. Sublethal exposure to dry residues (i.e., contact of imidacloprid (at 1% of recommended field rate did not affect insect survival, but led to higher mating frequencies when at least one member of the couple was exposed. However, the average mating duration was shortened when only females were exposed to imidacloprid. Moreover, exposed males showed higher locomotory (walking activity, lower respiration rates and induced higher fecundity rates when mated to unexposed females. Although the reproductive tracts of exposed males did not differ morphometrically from unexposed males, their accessory glands exhibited positive reactions for acidic and basic contents. Our findings suggest that males of the Neotropical brown stink bug hormetically increase their sexual fitness when cued by impending insecticidal stress in early adulthood.

  16. Estimating potential stylet penetration of southern green stink bug (Hemiptera: Pentatomidae) - A mathematical modeling approach

    Science.gov (United States)

    Southern green stink bugs, Nezara viridula (L.), and related species are significant pests of cotton in the U.S. Cotton Belt. Using their stylets, adults introduce disease pathogens of cotton into cotton bolls, and preliminary data indicates nymphs can also ingest these pathogens. Data is lacking ...

  17. Changes in energy content of Podisus maculiventris (Say (Hemiptera: Pentatomidae in response to different diets

    Directory of Open Access Journals (Sweden)

    Seyed Mohammad Ahsaei

    2014-12-01

    Full Text Available Nymphal instars and adults of the spined soldier bug, Podisus maculiventris, preferably feed on lepidopteran and colopteran larvae. Different prey diets can change fitness including energy reservoirs of the predator. In the present study, effects of different artificial and natural diets as well as starvation was studied on energy contents of the third and fourth nymphal instars of P. maculiventris. Total available energy calculated as the sum of the energy contents of lipids, carbohydrates, glycogen, and proteins did not significantly differ in the third and fourth nymphal instars fed on natural and artificial diets. Among the energy reservoirs, only total lipid storage of the starved nymphal instars was significantly different from that in the bugs fed on the natural diet. In conclusion, total energy reserves cannot be changed in response to artificial diet. A better understanding of the impact of artificial diets on the energy reserves of natural enemies can be considered as a biomarker for more appropriate mass rearing approaches of natural enemies.

  18. Frugivory by Brown Marmorated Stink Bug (Hemiptera: Pentatomidae) Alters Blueberry Fruit Chemistry and Preference by Conspecifics.

    Science.gov (United States)

    Zhou, Yucheng; Giusti, M Monica; Parker, Joyce; Salamanca, Jordano; Rodriguez-Saona, Cesar

    2016-10-01

    The brown marmorated stink bug, Halyomorpha halys (Stål), is an invasive pest from Asia that feeds on many agricultural crops in the United States, including blueberries. Yet, the effects of H. halys feeding on fruit chemistry and induced resistance to insects remain unknown. Here we hypothesized that frugivory by H. halys changes fruit chemical composition, which in turn affects insect feeding behavior. In field experiments, blueberry fruit was either mechanically injured or injured by 0 (control), 2, 5, or 10 H. halys Total soluble solids (°Brix) and anthocyanin and phenolic content in injured and uninjured fruits, as well as their effects on feeding behavior by conspecifics, were measured subsequently in the laboratory. Results showed lower °Brix values in injured fruit as compared with uninjured fruit. Fruit injured by 2 and 5 H. halys also had 32 and 20% higher total phenolics, respectively, than the uninjured controls. The proportions of the anthocyanins derived from delphinidin, cyanidin, and petunidin increased, whereas those from malvidin decreased, in fruit after mechanical wounding and frugivory by H. halys In dual-choice tests, H. halys fed more often on uninjured fruit than those previously injured by conspecifics. These results show that frugivory by H. halys reduces the amounts of soluble solids, alters anthocyanin ratios, and increases levels of phenolics, and, as a result, injured fruits were a less preferred food source for conspecifics. To our knowledge, this is the first study to investigate the effects of frugivory on fruit chemistry and induced fruit resistance against a fruit-eating herbivore. © The Authors 2016. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  19. Cold tolerance of Halyomorpha halys (Hemiptera: Pentatomidae) across geographic and temporal scales

    Science.gov (United States)

    Theresa M. Cira; Robert C. Venette; John Aigner; Thomas Kuhar; Donald E. Mullins; Sandra E. Gabbert; W. D. Hutchison

    2016-01-01

    The brown marmorated stink bug, Halyomorpha halys (Stål), is native to eastern Asia and is presently invading North America. Little is known about the exposure to and effects of winter temperatures in newly invaded regions on H. halys. The overwintering habitats that this species utilizes vary greatly in their thermal buffering...

  20. Enhanced response of Halyomorpha halys (Hemiptera: Pentatomidae) to its aggregation pheromone with ethyl decatrieonate

    Science.gov (United States)

    The invasive stink bug species, Halyomorpha halys (Stål), severely damages multiple agricultural commodities, resulting in disruption of established integrated pest management (IPM) programs. Several semiochemicals have been identified to attract H. halys to traps and monitor their presence, abunda...

  1. Halyomorpha halys (Hemiptera: Pentatomidae) response to pyramid traps baited with attractive light and pheromonal stimuli

    Science.gov (United States)

    Halyomorpha halys is an invasive insect that causes severe economic damage to multiple agricultural commodities. Several monitoring techniques have been developed to monitor H. halys including pheromone and light-baited black pyramid traps. Here, we evaluated the attractiveness of these traps bait...

  2. The chemical volatiles (semiochemicals) produced by neo tropical stink bugs (Hemiptera: Pentatomidae)

    Energy Technology Data Exchange (ETDEWEB)

    Moraes, Maria C.B.; Pareja, Martin; Laumann, Raul A.; Borges, Miguel [EMBRAPA Recursos Geneticos e Biotecnologia, Brasilia, DF (Brazil). Nucleo Tematico Controle Biologico

    2008-09-15

    In recent years the growing concern about environmental changes and how we are using the natural resources have triggered a search for natural products as alternatives to synthetic pesticides. The stink bugs produce a wide variety of chemical compounds (semiochemicals) that show potential to manage these insects. The stink bugs Chinavia impicticornis (Stal), C. ubica (Rolston), Dichelops melacanthus (Dallas), Euschistus heros (F.), Piezodorus guildinii (Westwood), Thyanta perditor (Westwood) and Tibraca limbativentris (Stal) had their blends of defensive compounds evaluated both qualitative and quantitatively. The main compounds identified on the glands of Brazilian stink bugs are: 2-alkenals, mainly the E isomer; saturated aliphatic hydrocarbons; and 4 oxo-(E)-2-alkenals. The first sex attractant determined from a stink bug was obtained from Nezara viridula L., and consists on a mix of two isomers cis - and trans bisabolene-epoxides. Later the soybean stink bug E. heros was also studied and its sex attractant was identified as three esters methyl: 2,6,10-trimethyl decanoate, methyl 2,6,10-trimethyl dodecanoate, and methyl E2, Z4-decadienoate. Recently, three new Brazilian sting bugs were studied and had their sex attractant elucidated. Males of T. perditor produce the ester, methyl 2E, 4Z, 6Z-decatrienoate. Whereas, the stink bug, P. guildinii has as sexual pheromone, the sesquiterpene beta-sesqui phellandrene, and the stink bug T. limbativentris produces as sex attractant the zingiberenol. In this review we discuss the advances obtained on the behaviour and identification of sex and defensive compound of stink bugs from Brazilian crops and the application of this knowledge to manage the stink bugs. (author)

  3. The chemical volatiles (semiochemicals) produced by neo tropical stink bugs (Hemiptera: Pentatomidae)

    International Nuclear Information System (INIS)

    Moraes, Maria C.B.; Pareja, Martin; Laumann, Raul A.; Borges, Miguel

    2008-01-01

    In recent years the growing concern about environmental changes and how we are using the natural resources have triggered a search for natural products as alternatives to synthetic pesticides. The stink bugs produce a wide variety of chemical compounds (semiochemicals) that show potential to manage these insects. The stink bugs Chinavia impicticornis (Stal), C. ubica (Rolston), Dichelops melacanthus (Dallas), Euschistus heros (F.), Piezodorus guildinii (Westwood), Thyanta perditor (Westwood) and Tibraca limbativentris (Stal) had their blends of defensive compounds evaluated both qualitative and quantitatively. The main compounds identified on the glands of Brazilian stink bugs are: 2-alkenals, mainly the E isomer; saturated aliphatic hydrocarbons; and 4 oxo-(E)-2-alkenals. The first sex attractant determined from a stink bug was obtained from Nezara viridula L., and consists on a mix of two isomers cis - and trans bisabolene-epoxides. Later the soybean stink bug E. heros was also studied and its sex attractant was identified as three esters methyl: 2,6,10-trimethyl decanoate, methyl 2,6,10-trimethyl dodecanoate, and methyl E2, Z4-decadienoate. Recently, three new Brazilian sting bugs were studied and had their sex attractant elucidated. Males of T. perditor produce the ester, methyl 2E, 4Z, 6Z-decatrienoate. Whereas, the stink bug, P. guildinii has as sexual pheromone, the sesquiterpene beta-sesqui phellandrene, and the stink bug T. limbativentris produces as sex attractant the zingiberenol. In this review we discuss the advances obtained on the behaviour and identification of sex and defensive compound of stink bugs from Brazilian crops and the application of this knowledge to manage the stink bugs. (author)

  4. Carbohydrases in the digestive system of the spined soldier bug, Podisus maculiventris (Say) (Hemiptera: Pentatomidae).

    Science.gov (United States)

    Ghamari, Mahboob; Hosseininaveh, Vahid; Darvishzadeh, Ali; Chougule, Nanasaheb P

    2014-04-01

    The spined soldier bug, Podisus maculiventris, is a generalist predator of insects and has been used in biological control. However, information on the digestion of food in this insect is lacking. Therefore, we have studied the digestive system in P. maculiventris, and further characterized carbohydrases in the digestive tract. The midgut of all developmental stages was composed of anterior, median, and posterior regions. The volumes of the anterior midgut decreased and the median midgut increased in older instars and adults, suggesting a more important role of the median midgut in food digestion. However, carbohydrase activities were predominant in the anterior midgut. In comparing the specific activity of carbohydrases, α-amylase activity was more in the salivary glands (with two distinct activity bands in zymograms), and glucosidase and galactosidase activities were more in the midgut. Salivary α-amylases were detected in the prey hemolymph, demonstrating the role of these enzymes in extra-oral digestion. However, the catalytic efficiency of midgut α-amylase activity was approximately twofold more than that of the salivary gland enzymes, and was more efficient in digesting soluble starch than glycogen. Midgut α-amylases were developmentally regulated, as one isoform was found in first instar compared to three isoforms in fifth instar nymphs. Starvation significantly affected carbohydrase activities in the midgut, and acarbose inhibited α-amylases from both the salivary glands and midgut in vitro and in vivo. The structural diversity and developmental regulation of carbohydrases in the digestive system of P. maculiventris demonstrate the importance of these enzymes in extra-oral and intra-tract digestion, and may explain the capability of the hemipteran to utilize diverse food sources. © 2014 Wiley Periodicals, Inc.

  5. Attraction of Halyomorpha halys (Hemiptera: Pentatomidae) haplotypes in North America and Europe to baited traps

    Science.gov (United States)

    Halyomorpha halys is a global invasive species native to Southeast Asia that is threatening agriculture in invaded regions. While pheromone-based monitoring tools for H. halys have been validated in North America and South Korea, their efficacy has not been widely evaluated in Europe. Our goals were...

  6. Indirect effect of neem oil on Podisus nigrispinus (Hemiptera, Pentatomidae: biology and predatory capacity

    Directory of Open Access Journals (Sweden)

    Aniele Pianoscki de Campos

    2014-10-01

    Full Text Available This study evaluated the effects on the development and predatory capacity of Podisus nigrispinus fed on Spodoptera frugiperda that have ingested different concentrations of neem oil. The predatory capacity of Podisus nigrispinus was assessed, separating nymphs (fourth instar and adults (males and females. The treatments consisted of S. frugiperda larvae reared in neem oil aqueous solutions (0.077, 0.359 and 0.599%, deltamethrin EC 25 (0.100% and control arranged in a completely randomized design, with ten replicates. Insects were offered three larval densities (one, three and six, in the third or fourth instars. The predated larvae were examined at 24 and 48 hours after the beginning of the experiment. Biological parameters of Podisus nigrispinus were evaluated in groups of ten second-instar nymphs transferred to pots, in five replicates. Insects were offered 2-6 third and/or fourth-instar larvae reared in the same neem oil concentrations in a completely randomized design. The following parameters were evaluated: duration of each nymph stage (days, nymph mortality (%, weight of fifth-instar nymphs (mg, sex ratio, weight of males and females (mg and longevity of unfed adults (days. The predatory capacity of nymphs and adults of Podisus nigrispinus was influenced by the neem oil at the concentrations of 0.359% and 0.599% in the highest density. The concentration of 0.359% lengthened the nymphal stage and the concentration of 0.599% reduced the weight of males.

  7. Landscape effects on reproduction of Euschistus servus (Hemiptera: Pentatomidae), a mobile, polyphagous, multivoltine arthropod herbivore

    Science.gov (United States)

    The brown stink bug is an economic pest of many crops in the southeastern US. In this study we characterized the complexity, land-use intensity and distances between differently-cropped fields on landscapes in two regions of southern Georgia, USA. We estimated brown stink bug reproduction, predator ...

  8. Monitoring stink bugs (Hemiptera: Pentatomidae) in mid-Atlantic apple and peach orchards.

    Science.gov (United States)

    Leskey, T C; Hogmire, H W

    2005-02-01

    Pyramid traps coated with "industrial safety yellow" exterior latex gloss enamel paint and baited with Euschistus spp. aggregation pheromone, methyl (2E,4Z)-decadienoate captured more stink bugs than all other baited and unbaited trap types in both apple and peach orchards in 2002 and 2003. Commercial sources of dispensers of methyl (2E,4Z)-decadienoate deployed in association with pyramid traps had a significant impact on trap captures. Captures in pyramid traps were four-fold greater when baited with lures from IPM Technologies, Inc. (Portland, OR) than with lures from Suterra (Bend, OR). Variation in yellow pyramid trap color ("industrial safety yellow" and "standard coroplast yellow") and material (plywood, plastic, and masonite) did not affect trap captures. Brown stink bug was the predominant species captured (58%), followed by dusky stink bug, Euschistus tristigmus (Say) (20%); green stink bug, Acrosternum hilare (Say) (14%); and other stink bugs (Brochymena spp. and unidentified nymphs) (8%). Captures in baited pyramid traps were significantly correlated with tree beating samples in both managed and unmanaged apple orchards and with sweep netting samples in the unmanaged apple orchard. However, problems associated with trapping mechanisms of pyramid trap jar tops and jar traps likely resulted in reduced captures in baited traps. Improved trapping mechanisms must be established to develop an effective monitoring tool for stink bugs in mid-Atlantic orchards.

  9. Custos ecofisiológicos do cuidado maternal em Antiteuchus sepulcralis (Fabricius) (Hemiptera: Pentatomidae)

    OpenAIRE

    Santos, Adão V.; Albuquerque, Gilberto S.

    2001-01-01

    Para estudar as características biológicas relacionadas com o cuidado maternal em Antiteuchus sepulcralis (Fabricius), foram feitas observações em 28 fêmeas, com suas respectivas posturas, criadas na planta hospedeira Hibiscus pernambucensis Arruda (Malvaceae). As posturas foram individualizadas em gaiolas de filó e verificadas diariamente no período de setembro/97 a maio/98, à temperatura média de 27,7°C. Para observar as estratégias de defesa exibidas pela fêmea, colocaram-se um ou mais ind...

  10. Diapause and different seasonal morphs of Euschistus heros (Fabr.) (Hemiptera: Pentatomidae) in Northern Parana State

    International Nuclear Information System (INIS)

    Mourao, Ana P. M.; Panizzi, Antonio R.

    2000-01-01

    The Neotropical brown stink bug, Euschistus heros (Fabr.), was collected on sunflower [Helianthus annuus (L.)], soybean [Glycine max (L.) Merrill], star bristle [Acanthospermum hispidum (DC.)], and under fallen leaves of mango tree [Mangifera indica (L.)] and privet (Ligustrum lucidum Ait.), during one year, to evaluate the diapause incidence and the occurrence of different seasonal morphs. The majority of the insects (ca. 90%) with mature reproductive organs was observed during the summer (December-March), when E. heros was found on soybean or on sunflower; in the beginning of autumn, most insects (87%) showed immature reproductive organs, and they were found on star bristle and under fallen leaves. Bugs with mature reproductive organs had more developed shoulders (3.23 and 3.27 mm, for males and females, respectively) than bugs with immature organs (2.91 and 2.89 mm, for males and females, respectively). Two distinct body colors, dark brown and reddish brown, were observed. Nevertheless, the reddish brown was the predominant color of both mature and immature adults during all year. Adults were parasitized by Hexacladia smithii (Ashmead) (Hymenoptera: Encyrtidae) and Tachinidae mainly Trichopoda giacomellii (Blanchard) (Diptera: Tachinidae) (80% and 40% of parasitism in male and female, respectively) during summer (December), when the bugs colonized sunflower. In soybean, 12% of males and 10% of females were parasitized, whereas in fallen leaves, the parasitism rate was 5% in both sexes.These results showed that in autumn/winter (shorter photoperiod) the majority of the insects were inactive under fallen leaves, showing immature reproductive organs and less developed shoulders, indicating that, at this time, these bugs were in diapause. (author)

  11. Pseudocromata, a new genus of Ochlerini based on a new species from Ecuador (Discocephalinae: Pentatomidae)

    Science.gov (United States)

    In addition to the carinate metasternum, in Cromata the labrum equals the length of the first labial segment, whereas in Pseudocromata the labrum equals the length of the first two labial segments. The males of Pseudocromata do not have the dorsal process extending from the 7th abdominal tergite fou...

  12. Predation of Halyomorpha halys (Hemiptera: Pentatomidae) from web-building spiders associated with anthropogenic dwellings

    Science.gov (United States)

    The brown marmorated stink bug or Halyomorpha halys is an invasive pest from Asia that causes severe agricultural damage and nuisance problems for homeowners. While the natural enemy community of H. halys has been evaluated in several agroecosystems, it has not been quantified where H. halys overwi...

  13. Seasonal occurrence and impact of Halyomorpha halys (Hemiptera: Pentatomidae) in tree fruit.

    Science.gov (United States)

    Nielsen, Anne L; Hamilton, George C

    2009-06-01

    Halyomorpha halys is an introduced stink bug species from Asia that is spreading throughout the Mid-Atlantic United States. It is native to South Korea, Japan, and eastern China, where it is an occasional pest of tree fruit, including apple and pear. Cage experiments with adults placed on apple and peach during critical plant growth stages demonstrate that it can cause damage to developing fruit during mid- and late season growth periods and that feeding occurs on all regions of the fruit. Feeding that occurred during pit hardening/mid-season and final swell periods were apparent as damage at harvest, whereas feeding at shuck split/petal fall in peaches and apples caused fruit abscission. Tree fruit at two commercial farms were sampled weekly in 2006-2007 to determine H. halys seasonality. Low densities of nymphs in apple suggest that it is an unsuitable developmental host. Both nymphs and adults were found on pear fruits with peak populations occurring in early July and mid-August, the time when pit hardening/mid-season and swell period damage occurs. At both farms, stink bug damage was greater than 25% damaged fruit per tree. We attribute this to H. halys because population densities were significantly higher than native pentatomids at both locations in both beat samples and blacklight trap captures. The data presented here documents the potential for H. halys to cause damage in orchards throughout the Mid-Atlantic United States and shows the need for development of appropriate control strategies.

  14. Catàleg dels Miridae (Heteroptera) del Massís del Garraf

    OpenAIRE

    Goula Goula, Marta

    1989-01-01

    Per a la redacció d'aquest catàleg, s'aporten dades d'observació pròpia al llarg dels anys 1980-1984, així com les troballes publicades per CUNI (1889a,1889b,1889c,1891) i per RIBES (1978a,1978b,1980,1984). Totes aquestes observacions s'han fet en localitats del Massis del Garraf, que será objecte d'una curta descripció.

  15. Lecto- and Paralectotype Designations and Redescription of Arachnocoris alboannulatus Costa Lima, 1927 (Hemiptera: Heteroptera: Nabidae)

    Science.gov (United States)

    Thaynara S. Martins; Felipe F. F. Moreira; Javier E. Mercado; Jorge A. Santiago-Blay

    2016-01-01

    The lecto- and a paralectotype of Arachnocoris alboannulatus Costa Lima, 1927 are designated to enhance nomenclatural stability. A redescription based on the type material from Rio de Janeiro deposited in the Entomological Collection of the Oswaldo Cruz Institute, Brazil, is presented. Specimens are illustrated and measured in detail for the first time.

  16. Leg coordination during turning on an extremely narrow substrate in a bug, Mesocerus marginatus (Heteroptera, Coreidae).

    Science.gov (United States)

    Frantsevich, Leonid I; Cruse, Holk

    2005-10-01

    The turning movement of a bug, Mesocerus marginatus, is observed when it walks upside-down below a horizontal beam and, at the end of the beam, performs a sharp turn by 180 degrees . The turn at the end of the beam is accomplished in three to five steps, without strong temporal coordination among legs. During the stance, leg endpoints (tarsi) run through rounded trajectories, rotating to the same side in all legs. During certain phases of the turn, a leg is strongly depressed and the tarsus crosses the midline. Swing movements rotate to the same side as do leg endpoints in stance, in strong contrast to the typical swing movements found in turns or straight walk on a flat surface. Terminal location is found after the search through a trajectory that first moves away from the body and then loops back to find substrate. When a leg during stance has crossed the midline, in the following swing movement the leg may move even stronger on the contralateral side, i.e. is stronger depressed, in contrast to swing movements in normal walking, where the leg is elevated. These results suggest that the animals apply a different control strategy compared to walking and turning on a flat surface.

  17. Pheromones of milkweed bugs (Heteroptera: Lygaeidae) attract wayward plant bugs: Phytocoris mirid sex pheromone.

    Science.gov (United States)

    Zhang, Qing-He; Aldrich, Jeffrey R

    2003-08-01

    The synthetic aggregation pheromone of the large milkweed bug, Oncopeltus fasciatus (Dallas) (Lygaeinae), also attracted males of the plant bug, Phytocoris difficilis Knight (Miridae). Field testing partial blends against the six-component blend comprising the Oncopeltus pheromone showed that cross-attraction of P. difficilis males was due to synergism between (E)-2-octenyl acetate and (E,E)-2,4-hexadienyl acetate. Hexyl acetate was abundant in the metathoracic scent gland (MSG) secretion of P. difficilis males, but because female P. difficilis could not initially be found in the field, further combinatorial tests were guided by prior research on the pheromones of two Phytocoris species in the western United States. The combination of hexyl, (E)-2-hexenyl, and (E)-2-octenyl acetates was as attractive to P. difficilis males as the milkweed bug pheromone, yet no milkweed bugs were drawn to this blend. Gas chromatographic (GC)-electroantennographic detection (EAD) and GC-mass spectrometric (MS) analyses of female P. difficilis MSGs determined that their secretion contained predominantly hexyl, (E)-2-hexenyl, and (E)-2-octenyl acetates (all strongly EAD-active)-the latter two compounds found only in trace amounts from males-plus five minor female-specific compounds, three of which were EAD-active. (E,E)-2,4-Hexadienyl acetate was not detected from P. difficilis females or males. The blend of the three major components, hexyl, (E)-2-hexenyl, and (E)-2-octenyl acetates (2:1.5:1 by volume), was as attractive as the blend of all six EAD-active compounds identified from females, indicating that this ternary blend constitutes the sex pheromone of P. difficilis. Hexyl acetate with (E)-2-octenyl acetate also attracted males of another species, P. breviusculus Reuter, but addition of (E)-2-hexenyl acetate and/or (E,E)-2,4-hexadienyl acetate inhibited attraction of P. breviusculus males. Attraction of P. difficilis males occurred mainly during the first half of scotophase. The possible neurophysiological basis for this asymmetrical cross-attraction is discussed.

  18. Host plants of the tarnished plant bug (Heteroptera: Miridae) in Central Texas.

    Science.gov (United States)

    Esquivel, J F; Mowery, S V

    2007-08-01

    The tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), has taken on added importance as a pest of cotton in the Cotton Belt after successful eradication efforts for the boll weevil (Anthonomus grandis grandis Boheman). Because the Southern Blacklands region of Central Texas is in advanced stages of boll weevil eradication, blooming weeds and selected row crops were sampled during a 3-yr study to determine lygus species composition and associated temporal host plants. L. lineolaris was the sole lygus species in the region. Thirteen previously unreported host plants were identified for L. lineolaris, of which 69% supported reproduction. Rapistrum rugosum L. Allioni and Ratibida columnifera (Nuttall) Wooton and Standley were primary weed hosts during the early season (17 March to 31 May). Conyza canadensis L. Cronquist variety canadensis and Ambrosia trifida L. were primary weed hosts during the midseason (1 June to 14 August) and late-season (15 August to 30 November), respectively. Sisymbrium irio L. and Lamium amplexicaule L. sustained L. lineolaris populations during the overwintering period (1 December to 16 March). The proportion of females and numbers of nymphs found in R. rugosum, C. canadensis, A. trifida, and S. irio suggests these weeds supported reproductive adults during the early, mid-, and late season and overwintering period, respectively. Medicago sativa L. was the leading crop host for L. lineolaris; Glycine max L. Merrill did not yield L. lineolaris. Few L. lineolaris were collected in Gossypium hirsutum L. These results provide a more comprehensive assessment of host plants contributing to L. lineolaris populations in central Texas.

  19. Observations on some species of the genus Lyramorpha Westw. (Hemiptera Heteroptera)

    NARCIS (Netherlands)

    Schouteden, H.

    1908-01-01

    1. Lyramorpha pallida Westwood and L. rosea Westwood. In his »Catalogue of Hemiptera in the Collection of the Rev. W. F. Hope”, part I, London 1837, Westwood founded the genus Lyramorpha, with two species, L. rosea and L. pallida, both from New Holland.

  20. What do we know about the phylogeny of the semi-aquatic bugs (Hemiptera: Heteroptera: Gerromorpha)?

    DEFF Research Database (Denmark)

    Damgaard, Jakob

    2012-01-01

    The present study summarizes knowledge about phylogenetic relationships of the heteropteran infraorder Gerromorpha. A phylogeny for all families and subfamilies, and for all genera but those assigned to the two most diverse families, Veliidae and Gerridae, is compiled from the many studies by the...

  1. Review of Ptilomera (Ptilomera) (Hemiptera: Heteroptera: Gerridae) from India, with description of a new species.

    Science.gov (United States)

    Jehamalar, E Eyarin; Chandra, Kailash; Basu, Srimoyee; Selvakumar, C

    2018-01-15

    The subgenus Ptilomera (Ptilomera) Amyot Serville, 1843 of India is reviewed and Ptilomera (P.) nagalanda Jehamalar Chandra, sp. nov. is described from Peren District, Nagaland, India. The new species can clearly be distinguished from its congeners in India by the presence of silvery white setae on the sub-lateral region of the meso- and metanota and the presence of a fringe of fine short setae of different lengths on the flexor region of the mid femur reaching beyond the middle in the male. Detailed illustrations of the apterous male of the new species and male and female of other species of Ptilomera, except P. occidentalis Zettel, are given. Distribution maps and a key to all known species of Ptilomera (Ptilomera) in India are given.

  2. Cream and albinotic – two new mutations affecting body colour in Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

    Czech Academy of Sciences Publication Activity Database

    Socha, Radomír

    2011-01-01

    Roč. 108, č. 1 (2011), s. 17-24 ISSN 1210-5759 R&D Projects: GA ČR GAP501/10/1215 Institutional research plan: CEZ:AV0Z50070508 Keywords : firebug * body- colour mutants * albinotic Subject RIV: EB - Genetics ; Molecular Biology Impact factor: 1.061, year: 2011 http://www.eje.cz/scripts/viewabstract.php?abstract=1582

  3. Corixidae (Hemiptera, Heteroptera en el lago urbano del parque Tezozomoc, Azcapotzalco, México, D. F.

    Directory of Open Access Journals (Sweden)

    G. Contreras-Rivero

    2005-01-01

    Full Text Available Los estudios ecológicos sobre la familia Corixidae (Hemiptera en México son escasos y fragmentados, por lo que se analiza su variación espacial y temporal en un lago urbano con algunas variables ambientales. Los muestreos se realizaron mensualmente, de julio de 2000 a junio de 2001, ubicando tres estaciones litorales de muestreo; en cada una se determinó: profundidad, transparencia, temperatura, oxígeno, pH, conductividad, dureza y alcalinidad. Los coríxidos se capturaron con red de cuchara de forma rectangular. Se efectuó un análisis de correlación simple entre la abundancia total de los coríxidos y las variables físicas y químicas registradas. Se registraron tres especies: Graptocorixa abdominalis (Say, 1832, con 53% de abundancia; Corisella edulis (Champion, 1901 con 43% y Krizousacorixa femorata (Guérin, 1857 con 1%. De un total de 2423 organismos capturados, la mayor abundancia se registró en marzo, junto con los valores más altos de profundidad y oxígeno. La menor abundancia se presentó en junio, con los valores más bajos de alcalinidad. La correlación de variables y abundancia total fue positiva y significativa con profundidad, oxígeno y conductividad. La Estación I presentó la mayor abundancia de coríxidos y la estación III la menor abundancia. Las variaciones registradas en la abundancia se deben al aporte de agua y a la ubicación de las estaciones de muestreo.

  4. Stephanitis takeyai and S. rhododendri (Heteroptera: Tingidae in Slovakia: first record and economic importance

    Directory of Open Access Journals (Sweden)

    Barta Marek

    2016-04-01

    Full Text Available This is the first report on the occurrence of andromeda lace bug, Stephanitis (Stephanitis takeyai Drake and Maa, 1955, and rhododendron lace bug, Stephanitis (Stephanitis rhododendri Horvath, 1905, in Slovakia. Syntopic colonies of both species were found on rhododendron shrubs (Rhododendron sp. in south-western Slovakia in 2015. The feeding of the lace bugs resulted in damage to infested rhododendrons. Leaves turned yellow and brown, prematurely dropped what led to continuous drying up of twigs and the whole plants. Details on morphology of adult stages of the two species, description of damage symptoms and economic importance of these pests are presented and discussed.

  5. Life history of the invasive bug Oxycarenus lavaterae (Heteroptera: Oxycarenidae) in Bulgaria

    Czech Academy of Sciences Publication Activity Database

    Nedvěd, Oldřich; Chehlarov, E.; Kalushkov, P.

    2014-01-01

    Roč. 66, č. 2 (2014), s. 203-208 ISSN 0324-0770 Institutional support: RVO:60077344 Keywords : size * weight * sexual dimorphism Subject RIV: EH - Ecology, Behaviour Impact factor: 0.532, year: 2014 http://www.acta-zoologica-bulgarica.eu/downloads/acta-zoologica-bulgarica/2014/66-2-203-208.pdf

  6. A Deep Insight Into the Sialotranscriptome of the Chagas Disease Vector, Panstrongylus megistus (Hemiptera: Heteroptera)

    Czech Academy of Sciences Publication Activity Database

    Ribeiro, J.M.C.; Schwarz, Alexandra; Francischetti, I.M.B.

    2015-01-01

    Roč. 52, č. 3 (2015), s. 351-358 ISSN 0022-2585 R&D Projects: GA MŠk LH12002; GA ČR GPP302/11/P798 Institutional support: RVO:60077344 Keywords : Chagas disease * vector biology * salivary gland * transcriptome * medical entomology Subject RIV: FN - Epidemiology, Contagious Diseases ; Clinical Immunology Impact factor: 1.712, year: 2015

  7. A new genus and two new species of Tingidae (Heteroptera) from Central America.

    Science.gov (United States)

    Montemayor, Sara I

    2008-04-01

    A new genus, Ceratotingis, distributed in Central America, is described to accommodate two new species, C. rafaeli from Panama and C. costarriquense from Costa Rica and to include Macrotingis zeteki from Panama. This paper includes descriptions of the new genus and its species, a redescription of C. zeteki, an identification key, and habitus photographs.

  8. Phylogenetic isolation of host trees affects assembly of local Heteroptera communities

    NARCIS (Netherlands)

    Vialatte, A.; Bailey, R.; Vasseur, C.; Matocq, A.; Gossner, M.; Everhart, D.; Vitrac, X.; Belhadj, A.; Ernoult, A.; Prinzing, A.

    2010-01-01

    A host may be physically isolated in space and then may correspond to a geographical island, but it may also be separated from its local neighbours by hundreds of millions of years of evolutionary history, and may form in this case an evolutionarily distinct island. We test how this affects the

  9. Joseocoris, new genus and two new species of Ceratocapsini (Heteroptera: Miridae: Orthotylinae from Argentina and Brazil

    Directory of Open Access Journals (Sweden)

    Thomas J. HENRY

    2013-01-01

    Full Text Available Se describe un nuevo género de Ceratocapsini (Miridae, Orthotylinae, Joseocoris para ubicar a dos especies nuevas: J. carpinteroi de Corrientes, Argenti - na, y J. costai de Rio de Janeiro, Brasil. Se presentan diagnosis, ilustraciones de las estructuras genitales masculinas, fotografías del macho y de la hembra de ambas especies y fotografías de microscopio electrónico, que ayudan a distinguir al nuevo género y a las dos nuevas especies de otros miembros de la tribu Ceratocapsini.

  10. The effect of adipokinetic hormone on midgut characteristics in Pyrrhocoris apterus L. (Heteroptera)

    Czech Academy of Sciences Publication Activity Database

    Kodrík, Dalibor; Vinokurov, Konstantin; Tomčala, Aleš; Socha, Radomír

    2012-01-01

    Roč. 58, č. 1 (2012), s. 194-204 ISSN 0022-1910 R&D Project s: GA ČR GAP501/10/1215; GA ČR GAP502/10/1734 Grant - others: project MOBITAG(CZ) GA 229518 Institutional research plan: CEZ:AV0Z50070508; CEZ:AV0Z40550506 Keywords : adipokinetic hormone * AKH * digestion Subject RIV: ED - Physiology Impact factor: 2.379, year: 2012

  11. A Mitochondrial Genome of Rhyparochromidae (Hemiptera: Heteroptera) and a Comparative Analysis of Related Mitochondrial Genomes.

    Science.gov (United States)

    Li, Teng; Yang, Jie; Li, Yinwan; Cui, Ying; Xie, Qiang; Bu, Wenjun; Hillis, David M

    2016-10-19

    The Rhyparochromidae, the largest family of Lygaeoidea, encompasses more than 1,850 described species, but no mitochondrial genome has been sequenced to date. Here we describe the first mitochondrial genome for Rhyparochromidae: a complete mitochondrial genome of Panaorus albomaculatus (Scott, 1874). This mitochondrial genome is comprised of 16,345 bp, and contains the expected 37 genes and control region. The majority of the control region is made up of a large tandem-repeat region, which has a novel pattern not previously observed in other insects. The tandem-repeats region of P. albomaculatus consists of 53 tandem duplications (including one partial repeat), which is the largest number of tandem repeats among all the known insect mitochondrial genomes. Slipped-strand mispairing during replication is likely to have generated this novel pattern of tandem repeats. Comparative analysis of tRNA gene families in sequenced Pentatomomorpha and Lygaeoidea species shows that the pattern of nucleotide conservation is markedly higher on the J-strand. Phylogenetic reconstruction based on mitochondrial genomes suggests that Rhyparochromidae is not the sister group to all the remaining Lygaeoidea, and supports the monophyly of Lygaeoidea.

  12. Checklist and new records of Notonectidae (Hemiptera: Heteroptera: Nepomorpha from Goiás, Brazil

    Directory of Open Access Journals (Sweden)

    Julianna Freires Barbosa

    2017-04-01

    Resumo. A savanna brasileira, chamada de Cerrado, possui a maior riqueza de flora dentre as savannas mundiais, e o Estado de Goiás encontra-se dentro dos limites deste bioma. Apresentamos aqui uma lista de espécies para Goiás baseada em literatura e espécimes coletados, com 18 espécies de Notonectidae, incluindo registros novos de distribuição de Martarega membranacea White, 1879, e o primeiro registro no Estado de Buenoa konta Nieser & Pelli, 1994; Buenoa pseudomutabilis Barbosa, Ribeiro & Nessimian, 2010; Buenoa tarsalis Truxal, 1953; Martarega bentoi Truxal, 1949 e Martarega brasiliensis Truxal, 1949. Esta lista destaca uma lacuna no conhecimento de Notonectidae e a grande necessidade de desenvolvimento de artigos com foco na diversidade de Notonectidae em Goiás.

  13. Mirid (Hemiptera: Heteroptera) specialists of sticky plants: adaptations, interactions, and ecological implications.

    Science.gov (United States)

    Wheeler, Alfred G; Krimmel, Billy A

    2015-01-07

    Sticky plants-those having glandular trichomes (hairs) that produce adhesive, viscous exudates-can impede the movement of, and entrap, generalist insects. Disparate arthropod groups have adapted to these widespread and taxonomically diverse plants, yet their interactions with glandular hosts rarely are incorporated into broad ecological theory. Ecologists and entomologists might be unaware of even well-documented examples of insects that are sticky-plant specialists. The hemipteran family Miridae (more specifically, the omnivorous Dicyphini: Dicyphina) is the best-known group of arthropods that specializes on sticky plants. In the first synthesis of relationships with glandular plants for any insect family, we review mirid interactions with sticky hosts, including their adaptations (behavioral, morphological, and physiological) and mutualisms with carnivorous plants, and the ecological and agricultural implications of mirid-sticky plant systems. We propose that mirid research applies generally to tritrophic interactions on trichome-defended plants, enhances an understanding of insect-plant interactions, and provides information useful in managing crop pests.

  14. EFFECTS OF AZADIRACHTIN ON THE SUNN PEST, EURYGASTER INTEGRICEPS PUT. (HETEROPTERA, SCUTELLERIDAE IN THE LABORATORY

    Directory of Open Access Journals (Sweden)

    Müjgan KIVAN

    2006-02-01

    Full Text Available To investigate the effect of azadirachtin on different stages of the sunn pest, Eurygaster integriceps Put. (Het., Scutelleridae in the laboratory, a commercial neem insecticide (NeemAzal T/S was applied at dose of 0.5 % by dipping insects. No effect was observed for 1. instar nymphs at 1 day after application, although adults had slightly effect (20 %. Adults and nymphs were infl uenced 7 days after the treatment and mortality rates for adults and nymphs were recorded 44.0 and 51.9 %, respectively. The hatching of treated eggs was reduced than control. These results indicate that NeemAzal T/S may be used in integrated sunn pest management, but should be evaluated for fi eld efficacy.

  15. Morphology and neurophysiology of tarsal vibration receptors in the water strider Aquarius paludum (Heteroptera: Gerridae).

    Science.gov (United States)

    Perez Goodwyn, Pablo; Katsumata-Wada, Ayako; Okada, Koutaroh

    2009-09-01

    Substrate vibratory information receptors are extensively studied in insects and spiders, however for water surface dwelling species little data is available. We studied the vibration receptive organs in tarsi of the water strider Aquarius paludum, using light, transmission and scanning electron microscopes, and recorded the neural activity of the organs in response to vibrational stimuli, which were afterwards analysed with a custom made spike sorting program. We found that the tarsal chordotonal organ has one set of three scoloparia: one in the tarsomere I and two in the tarsomere II, all of which consisted of a few scolopidia. The chordotonal organ clearly responded to vibratory stimulation. Furthermore, we found that a pair of large subapical emergent dorsal setae, which had been deemed mechanosensory by previous authors, are not so. In turn, four ventral subapical trichobothria that are in direct contact with the water surface during locomotion, proved to be mechanosensory. The anatomical and ultrastructural observations support these electro-physiological results.

  16. A taxonomic revision of the new world species of Sirthenea (Heteroptera: Reduviidae: Peiratinae)

    NARCIS (Netherlands)

    Willemse, L.

    1985-01-01

    The American species of Sirthenea are revised and keys to the 12 species and seven subspecies are given. Four new species and two new subspecies are described viz., S. ater (Brazil: Minas Geraes), S. dubia (Panama; Paraguay: Caaguazu. Argentina: Misiones; Entre Rios), S. ferdinandi (Argentina:

  17. Seasonal alterations in host range and fidelity in the polyphagous mirid bug, Apolygus lucorum (Heteroptera: Miridae.

    Directory of Open Access Journals (Sweden)

    Hongsheng Pan

    Full Text Available In herbivorous insects, host plant switching is commonly observed and plays an important role in their annual life cycle. However, much remains to be learned about seasonal host switching of various pestiferous arthropods under natural conditions. From 2006 until 2012, we assessed Apolygus lucorum (Meyer-Dür host plant use in successive spring, summer and winter seasons at one single location (Langfang, China. Data were used to quantify changes in host plant breadth and host fidelity between seasons. Host fidelity of A. lucorum differed between seasons, with 87.9% of spring hosts also used in the summer and 36.1% of summer hosts used in winter. In contrast, as little as 25.6% host plant species were shared between winter and spring. Annual herbaceous plants are most often used for overwintering, while perennial woody plants are relatively important for initial population build-up in the spring. Our study contributes to an improved understanding of evolutionary interactions between A. lucorum and its host plants and lays the groundwork for the design of population management strategies for this important pest in myriad crops.

  18. The Heteroptera of the Netherlands Antilles – V Tingidae (Lace Bugs)

    NARCIS (Netherlands)

    Drake, Carl J.; Cobben, R.H.

    1960-01-01

    The present paper is based upon the lace bugs, Family Tingidae, collected by the junior author in the West Indies, on the islands of Aruba, Curaçao, Bonaire, St. Martin, Saba, and St. Eustatius. This collection of several tingids comprises 17 species, including the five new forms described below.

  19. Seasonal Occurrence and Interspecific Interactions of Egg Parasitoids of Megacopta cribraria (Heteroptera: Plataspidae) in Japan.

    Science.gov (United States)

    Hoshino, Keisuke; Adati, Tarô; Olson, Dawn M; Takasu, Keiji

    2017-06-01

    We conducted a field study to determine seasonal egg parasitism rates of the kudzu bug Megacopta cribraria (F.) on the kudzu plant, Pueraria montana (Lour.) Merr. var. lobata (Willd.) Maesen et Almeida ex Sanjappa and Pradeep, in Tokyo, Japan, during the period from May 2014 to September 2014. The eggs of M. cribraria per 1 m2 of kudzu at four locations in Tokyo were collected weekly and parasitism rates were assessed. Eggs of M. cribraria were laid on the kudzu plant from May to September. Megacopta cribraria eggs were parasitized by two parasitoid species, Paratelenomus saccharalis (Dodd) and Ooencyrtus nezarae Ishii. Paratelenomus saccharalis first appeared in May, and its parasitism rates peaked in July and September. Ooencyrtus nezarae first appeared in June and its parasitism rates peaked in July. Except for one location which could not be statistically analyzed because of the small sample size, occurrence of parasitism by P. saccharalis and O. nezarae in M. cribraria egg masses was independent at one location and positively associated at two locations, suggesting that the use of host egg masses by P. saccharalis and O. nezarae is not mutually exclusive. Parasitism rates by P. saccharalis and O. nezarae were significantly lower for egg masses parasitized by both species than for those parasitized by a single species. The proportion of males among O. nezarae progeny was significantly higher for egg masses parasitized by O. nezarae together with P. saccharalis than for those parasitized by O. nezarae alone. These results suggest that parasitism of host egg masses by the two species is influenced by their interspecific interactions. © The Authors 2017. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  20. Autoradiographic studies on glucose metabolism in the salivary gland of Lygaeus SP. (Heteroptera, Lygalidae)

    International Nuclear Information System (INIS)

    Kumar, D.

    1985-01-01

    Autoradiographic studies using 3H-glucose in the salivary glands of Lygaeus sp.were carried out. It has been observed that the radioactivity appears in the cell cytoplasm and lumen within a short period of incubation and attains its peak after 30 min of incubation. Afterwards, the radioactivity is exhausted from the cell and lumen suggesting a very high rate of glucose metabolism in this species. (author) [pt

  1. Phylogenetically Diverse Burkholderia Associated with Midgut Crypts of Spurge Bugs, Dicranocephalus spp. (Heteroptera: Stenocephalidae).

    Science.gov (United States)

    Kuechler, Stefan Martin; Matsuura, Yu; Dettner, Konrad; Kikuchi, Yoshitomo

    2016-06-25

    Diverse phytophagous heteropteran insects, commonly known as stinkbugs, are associated with specific gut symbiotic bacteria, which have been found in midgut cryptic spaces. Recent studies have revealed that members of the stinkbug families Coreidae and Alydidae of the superfamily Coreoidea are consistently associated with a specific group of the betaproteobacterial genus Burkholderia, called the "stinkbug-associated beneficial and environmental (SBE)" group, and horizontally acquire specific symbionts from the environment every generation. However, the symbiotic system of another coreoid family, Stenocephalidae remains undetermined. We herein investigated four species of the stenocephalid genus Dicranocephalus. Examinations via fluorescence in situ hybridization (FISH) and transmission electron microscopy (TEM) revealed the typical arrangement and ultrastructures of midgut crypts and gut symbionts. Cloning and molecular phylogenetic analyses of bacterial genes showed that the midgut crypts of all species are colonized by Burkholderia strains, which were further assigned to different subgroups of the genus Burkholderia. In addition to the SBE-group Burkholderia, a number of stenocephalid symbionts belonged to a novel clade containing B. sordidicola and B. udeis, suggesting a specific symbiont clade for the Stenocephalidae. The symbiotic systems of stenocephalid bugs may provide a unique opportunity to study the ongoing evolution of symbiont associations in the stinkbug-Burkholderia interaction.

  2. The Pentatomoidea (Hemiptera: Heteroptera) of Sub-Saharan Africa : a database

    NARCIS (Netherlands)

    Robertson, I.A.D.

    2009-01-01

    Introduction The purpose of this database is to list all the taxonomic publications on this Superfamily in Sub-Saharan Africa until the year 2000. It is also intended to give an indication of the kind of information contained in each paper. No attempt has been made to change or criticise what

  3. New species and new records of Notonecta (Hemiptera: Heteroptera: Notonectidae from Brazil

    Directory of Open Access Journals (Sweden)

    Julianna F. Barbosa

    2013-12-01

    Full Text Available Notonecta itatiaia sp. nov. is described from the state of Rio de Janeiro. Like other Notonecta species that occurs in Brazil, N. itatiaia has no remarkable diagnostic features than the shape of genital capsule. Along with the first description of a Notonecta from Brazil in eighty years, N. disturbata is newly recorded from the states of Pará, Piauí and São Paulo, and N. pulchra from Pará. A key to species of Notonecta (males occurring in Brazil is given.

  4. Comparative analysis of overwintering physiology in nine species of semi-aquatic bugs (Heteroptera: Gerromorpha)

    Czech Academy of Sciences Publication Activity Database

    Ditrich, T.; Košťál, Vladimír

    2011-01-01

    Roč. 36, č. 3 (2011), s. 261-270 ISSN 0307-6962 R&D Projects: GA ČR GA206/07/0269 Institutional research plan: CEZ:AV0Z50070508 Keywords : cold tolerance * overwintering * risk-spreading Subject RIV: ED - Physiology Impact factor: 1.330, year: 2011

  5. Venoms of Heteropteran Insects: A Treasure Trove of Diverse Pharmacological Toolkits

    Science.gov (United States)

    Walker, Andrew A.; Weirauch, Christiane; Fry, Bryan G.; King, Glenn F.

    2016-01-01

    The piercing-sucking mouthparts of the true bugs (Insecta: Hemiptera: Heteroptera) have allowed diversification from a plant-feeding ancestor into a wide range of trophic strategies that include predation and blood-feeding. Crucial to the success of each of these strategies is the injection of venom. Here we review the current state of knowledge with regard to heteropteran venoms. Predaceous species produce venoms that induce rapid paralysis and liquefaction. These venoms are powerfully insecticidal, and may cause paralysis or death when injected into vertebrates. Disulfide-rich peptides, bioactive phospholipids, small molecules such as N,N-dimethylaniline and 1,2,5-trithiepane, and toxic enzymes such as phospholipase A2, have been reported in predatory venoms. However, the detailed composition and molecular targets of predatory venoms are largely unknown. In contrast, recent research into blood-feeding heteropterans has revealed the structure and function of many protein and non-protein components that facilitate acquisition of blood meals. Blood-feeding venoms lack paralytic or liquefying activity but instead are cocktails of pharmacological modulators that disable the host haemostatic systems simultaneously at multiple points. The multiple ways venom is used by heteropterans suggests that further study will reveal heteropteran venom components with a wide range of bioactivities that may be recruited for use as bioinsecticides, human therapeutics, and pharmacological tools. PMID:26907342

  6. Formation of Mesoherpetobionts Communities on a Reclamated Coal Open Pit Dump

    Science.gov (United States)

    Luzyanin, Sergey; Eremeeva, Natalya

    2017-11-01

    The structure of the mesoherpetobionts arthropod communities of the reclamated dump of the Krasnobrodsky coal pit (Kemerovo region, Russia) has been studied. It was established that the pioneer grouping of mesoherpetobionts arthropod represented by classes of Chilopoda, Arachnida and Insecta-Ectognatha has been formed on the dump for two years after the soil deposition. From the Arachnida, the species of the order Aranei are the most active in the stocking of the dumps. From the class Chilopoda, the species of Lithobiomorpha appear the first on the dump. Insects from the following three orders, Heteroptera, Hymenoptera and especially Coleoptera take the main part in the expansion of dumps and the formation of primary communities. Among the Coleoptera, the beetles of the family of Carabidae (44 species, dynamic density 22.9 specimens/10 trapped per day) dominate. From them, small or medium-sized species are mainly involved in stocking the dumps. There are significant differences in the complexes of ground dump carabid beetles in comparison with the control group, differing in species composition of dominant species, species richness and species diversity parameters

  7. THE ECONOMIC IMPORTANCE OF THE BIODIVERSITY OF THE INVERTEBRATES FAUNA IN THE CORN CULTURE SOIL IN COPSA MICA (SIBIU COUNTY ROMANIA

    Directory of Open Access Journals (Sweden)

    Iuliana ANTONIE

    2014-10-01

    Full Text Available The goal of our researches is in bringing the scientific arguments of the necessity of including the biologic parameters, mainly of the invertebrates in the soil, in the evaluation studies of the impact upon the environment and the national strategies of monitoring of the soils quality. If the chemical analysis measure the quantity of the polluters, the invertebrates in the soil, especially the insects, reflect intensively the anthropologic influences, emphasizing the intensifications or inhibitions of their activity under the stress conditions. The study upon the invertebrates’ fauna was carried on in Copsa Mica area (Sibiu County in the corn agricultural ecosystem. The properties of the soil in this area are strongly changed by the industrial activity as a result of an accumulation of great quantities of heavy metals (lead, cadmium. The researches in this area are a part of a greater study upon the invertebrates’ fauna in the corn culture soil of the Sibiu County, researches that took place during 2011-2013. The technology applied in this area is a semi intensive one. For collecting the invertebrates there were used two methods: drilling the soil and pitfall traps. There were identified invertebrates belonging to 4 classes (Annelida, Arachnida, Chilopoda, Insecta and 11 orders (Haplotaxida, Aranea, Acari, Lithobiomorpha, Geophilomorpha, Collembola, Orthoptera, Heteroptera, Hymenoptera, Coleoptera, Diptera.

  8. Venoms of Heteropteran Insects: A Treasure Trove of Diverse Pharmacological Toolkits.

    Science.gov (United States)

    Walker, Andrew A; Weirauch, Christiane; Fry, Bryan G; King, Glenn F

    2016-02-12

    The piercing-sucking mouthparts of the true bugs (Insecta: Hemiptera: Heteroptera) have allowed diversification from a plant-feeding ancestor into a wide range of trophic strategies that include predation and blood-feeding. Crucial to the success of each of these strategies is the injection of venom. Here we review the current state of knowledge with regard to heteropteran venoms. Predaceous species produce venoms that induce rapid paralysis and liquefaction. These venoms are powerfully insecticidal, and may cause paralysis or death when injected into vertebrates. Disulfide-rich peptides, bioactive phospholipids, small molecules such as N,N-dimethylaniline and 1,2,5-trithiepane, and toxic enzymes such as phospholipase A2, have been reported in predatory venoms. However, the detailed composition and molecular targets of predatory venoms are largely unknown. In contrast, recent research into blood-feeding heteropterans has revealed the structure and function of many protein and non-protein components that facilitate acquisition of blood meals. Blood-feeding venoms lack paralytic or liquefying activity but instead are cocktails of pharmacological modulators that disable the host haemostatic systems simultaneously at multiple points. The multiple ways venom is used by heteropterans suggests that further study will reveal heteropteran venom components with a wide range of bioactivities that may be recruited for use as bioinsecticides, human therapeutics, and pharmacological tools.

  9. Venoms of Heteropteran Insects: A Treasure Trove of Diverse Pharmacological Toolkits

    Directory of Open Access Journals (Sweden)

    Andrew A. Walker

    2016-02-01

    Full Text Available The piercing-sucking mouthparts of the true bugs (Insecta: Hemiptera: Heteroptera have allowed diversification from a plant-feeding ancestor into a wide range of trophic strategies that include predation and blood-feeding. Crucial to the success of each of these strategies is the injection of venom. Here we review the current state of knowledge with regard to heteropteran venoms. Predaceous species produce venoms that induce rapid paralysis and liquefaction. These venoms are powerfully insecticidal, and may cause paralysis or death when injected into vertebrates. Disulfide-rich peptides, bioactive phospholipids, small molecules such as N,N-dimethylaniline and 1,2,5-trithiepane, and toxic enzymes such as phospholipase A2, have been reported in predatory venoms. However, the detailed composition and molecular targets of predatory venoms are largely unknown. In contrast, recent research into blood-feeding heteropterans has revealed the structure and function of many protein and non-protein components that facilitate acquisition of blood meals. Blood-feeding venoms lack paralytic or liquefying activity but instead are cocktails of pharmacological modulators that disable the host haemostatic systems simultaneously at multiple points. The multiple ways venom is used by heteropterans suggests that further study will reveal heteropteran venom components with a wide range of bioactivities that may be recruited for use as bioinsecticides, human therapeutics, and pharmacological tools.

  10. Environ: E00537 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available PD:C00249], Oleic acid [CPD:C00712], trans-2-Decenal, Octenal, Hexanal Aspongopus chinensis, Aspongopus [TAX:236666], Nezara... antennata, Nezara [TAX:85309] ... Pentatomidae Aspongopus chinensis (dried) Others: Pentatomidae Nezara antennata (dried) ...

  11. Contribución al conocimiento de los Machiloidea de Colombia (Archaeognatha: Insecta Contribución al conocimiento de los Machiloidea de Colombia (Archaeognatha: Insecta

    Directory of Open Access Journals (Sweden)

    Sturm Helmut

    1983-09-01

    Full Text Available Se describen cuatro nuevas especies y una subespecie de Meinertellidae recolectadas en Colombia y en un bosque pluvial cerca de Manaos, Brasil. Son las siguientes: Meinertellus adisi, M. bogotensis santaemartae, Neomachilellus aboucbaari, N. amazonicus y N. rangeli. Se discute la posición sistemática de los ejemplares recolectados cerca de Bogotá, en el valle del río Magdalena y en la Cordillera Oriental cerca de Neiva. Se da una clave para los géneros suramericanos de la familia.Four new species and one new subspecies of Meinertellidae occurring respectively in Colombia and in the rain forest near Manaus, Brazil, are described:  Meinertellus adisi, M. bogotensis santaemartae , Neomachilellus abouchaari, N. amazonicus and N. rangeli. The systematical position of specimens collected near Bogota, in the Magdalena Valley and in the Eastern Andes near Neiva is discussed. A key for the South American genera of the family is given.

  12. Comunidades de insetos galhadores (Insecta em diferentes fisionomias do cerrado em Minas Gerais, Brasil Galling insect (Insecta communities in different "cerrado" physiognomies in Minas Gerais, Brazil

    Directory of Open Access Journals (Sweden)

    Silmary J. Gonçalves-Alvim

    2001-07-01

    Full Text Available Studies on the communities of galling insects and their host plants were performed in three "cerrado" physiognomies that occur in Minas Gerais: "campo sujo", "cerrado" sensu strictu, and "cerradão". Galls and host plants were collected along transects in a total of 3,000 herbs, 300 shrubs and 135 trees in each physiognomy. Ninety two species of galling insects (morphotypes on 62 host plant species of 28 families were found. The highest galling insect richness was observed in the "cerrado". Approximately 75.0% of galling insects belonged to the Cecidomyiidae (Diptera. The highest gall frequency was found on leaves (58.70% of the host plants, and was glabrous (83.70%. Most gall shape were elliptic (30.43%. A low similarity in galling insect species was observed among the three sampled physiognomies - the highest similarity index was observed between "cerrado" and "campo sujo" (SΦrensen index = 0.20, indicating that the presence of rare species of galling insects might be common in these environments.

  13. Neither silverfish nor fowl: the enigmatic Carboniferous Carbotriplura kukalovae Kluge, 1996 (Insecta: Carbotriplurida) is the putative fossil sister group of winged insects (Insecta: Pterygota)

    Czech Academy of Sciences Publication Activity Database

    Staniczek, A. H.; Sroka, Pavel; Bechly, G.

    2014-01-01

    Roč. 39, č. 4 (2014), s. 619-632 ISSN 0307-6970 EU Projects: European Commission(CZ) FP7/2007-2013 Program:FP7 Institutional support: RVO:60077344 Keywords : Carbotriplura kukalovae Subject RIV: EG - Zoology Impact factor: 2.784, year: 2014 http://onlinelibrary.wiley.com/doi/10.1111/syen.12076/pdf

  14. Aves silvestres infestadas por Phthiraptera (Insecta na Zona da Mata Norte de Pernambuco, Brasil Wild birds infested by Phthiraptera (Insecta in Pernambuco North Zona da Mata

    Directory of Open Access Journals (Sweden)

    Sônia Aline Roda

    1999-01-01

    Full Text Available Studies were carried out on the relationship between Phthiraptera and wild birds captured by mist nets at the Engenho Independência, at Vicência's county. Three families of Phthiraptera were identified. The Menoponidae were the one with the highest number of hosts. They were specially found in the dorsal face of the remiges. The Trochiloecetidae were only seen infesting the neck of birds belonging to the hummingbirds. The Philopteridae were observed on birds from three orders showing the highest variety of distribution on the birds.

  15. NEEM OIL ANTIFEEDANT AND INSECTICIDAL EFFECTS ON Oebalus poecilus (HEMIPTERA: PENTATOMIDAE MALES AND FEMALES EFEITO INSETICIDA E DETERRENTE DO ÓLEO DE NIM EM MACHOS E FÊMEAS DE Oebalus poecilus (HEMIPTERA: PENTATOMIDAE

    Directory of Open Access Journals (Sweden)

    Patricia Valle Pinheiro

    2010-10-01

    Full Text Available

    The antifeedant and insecticidal effects of two commercial neem (Azadirachta indica oil formulations (Dalneem and Nim-I-Go to Oebalus poecilus were evaluated on irrigated rice. To evaluate the antifeedant effect, both formulations were tested at 1% and 2% (v/v concentration levels. The insecticidal effect was evaluated at 0.5%, 1%, 2%, and 4% (v/v concentrations of Dalneem, by ingestion. Both experiments were conducted with four replications by treatment, containing one panicle and adult insects segregated by gender (two insects per plot for the antifeedant effect and five for the insecticidal effect. Both products were efficient, reducing the damage caused by insects. Insects fed less on the panicles treated with neem oil, causing lower number of feeding sheaths per panicle and lower percentage of damaged grains than the control. Spikelets weight was higher in panicles treated with neem oils. Females caused significantly higher damage than males in controls, for numbers of feeding sheaths and for the feeding deterrence index. Only at the 4% (v/v concentration level, Dalneem caused adult mortality higher than in the control. Results showed that neem oil formulations, at >= 1% (v/v concentration, can be used to reduce the quantitative and qualitative damages caused by O. poecilus in lowland rice.

    KEY-WORDS: Small rice stink bug; Azadirachta indica; qualitative damages; Oryza sativa; botanical extract.

    Avaliou-se o efeito das formulações comerciais de óleo de nim (Azadirachta indica Dalneem e Nim-I-Go sobre a alimentação e sobrevivência de O. poecilus, em arroz irrigado. O efeito sobre a alimentação foi avaliado nas concentrações de 1% e 2% (v/v das formulações. O efeito inseticida foi avaliado nas concentrações de 0,5%; 1%; 2%; e 4% (v/v de Dalneem, por ingestão. Os experimentos foram realizados com quatro repetições por tratamento, contendo uma panícula e insetos adultos separados por sexo (dois insetos por parcela, para o efeito sobre a alimentação, e cinco, para o efeito inseticida. Os dois produtos foram igualmente eficientes na redução dos danos causados pelos insetos. Os insetos alimentaram-se menos das panículas tratadas, causando menor número de bainhas de estilete/grão e menos grãos danificados do que no controle. A massa das espiguetas foi maior nas panículas tratadas. Na testemunha, as fêmeas causaram danos significativamente maiores que os machos, para número de bainhas de estilete e Índice de Deterrência da Alimentação. Apenas na concentração de 4% (v/v, o Dalneem causou mortalidade de adultos significativamente superior à da testemunha. Conclui-se que os óleos de nim testados, em concentrações >= 1% (v/v, podem ser utilizados para reduzir os danos quantitativos e qualitativos causados por O. poecilus, em arroz.

    PALAVRAS-CHAVE: Percevejo da panícula; Azadirachta indica; danos qualitativos; Oryza sativa; extrato botânico.

  16. Diapause and different seasonal morphs of Euschistus heros (Fabr.) (Hemiptera: Pentatomidae) in Northern Parana State; Diapausa e diferentes formas sazonais em Euschistus heros (Fabr.) (Hemiptera: Pentatomidae) no Norte do Parana, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Mourao, Ana P. M. [Universidade Estadual de Londrina, PR (Brazil). Dept. de Agronomia; Panizzi, Antonio R. [EMBRAPA, Londrina, PR (Brazil). Centro Nacional de Pesquisa de Soja

    2000-06-15

    The Neotropical brown stink bug, Euschistus heros (Fabr.), was collected on sunflower [Helianthus annuus (L.)], soybean [Glycine max (L.) Merrill], star bristle [Acanthospermum hispidum (DC.)], and under fallen leaves of mango tree [Mangifera indica (L.)] and privet (Ligustrum lucidum Ait.), during one year, to evaluate the diapause incidence and the occurrence of different seasonal morphs. The majority of the insects (ca. 90%) with mature reproductive organs was observed during the summer (December-March), when E. heros was found on soybean or on sunflower; in the beginning of autumn, most insects (87%) showed immature reproductive organs, and they were found on star bristle and under fallen leaves. Bugs with mature reproductive organs had more developed shoulders (3.23 and 3.27 mm, for males and females, respectively) than bugs with immature organs (2.91 and 2.89 mm, for males and females, respectively). Two distinct body colors, dark brown and reddish brown, were observed. Nevertheless, the reddish brown was the predominant color of both mature and immature adults during all year. Adults were parasitized by Hexacladia smithii (Ashmead) (Hymenoptera: Encyrtidae) and Tachinidae mainly Trichopoda giacomellii (Blanchard) (Diptera: Tachinidae) (80% and 40% of parasitism in male and female, respectively) during summer (December), when the bugs colonized sunflower. In soybean, 12% of males and 10% of females were parasitized, whereas in fallen leaves, the parasitism rate was 5% in both sexes.These results showed that in autumn/winter (shorter photoperiod) the majority of the insects were inactive under fallen leaves, showing immature reproductive organs and less developed shoulders, indicating that, at this time, these bugs were in diapause. (author)

  17. Descrição dos estágios imaturos e biologia de Chinavia pengue (Rolston (Hemiptera, Pentatomidae Description of the immature stages and biology of Chinavia pengue (Rolston (Hemiptera, Pentatomidae

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    Viviana C. Matesco

    2007-03-01

    Full Text Available Adultos de Chinavia pengue (Rolston, 1983 foram coletados em Garopaba, SC, e criados em laboratório sob condições controladas (24 ± 1°C; UR 70 ± 10%; 12hL:12hE. Como alimento, adultos e ninfas receberam vagens verdes de feijão (Phaseolus vulgaris L.. Os ovos de C. pengue seguem o padrão de coloração e esculturação do cório e coloração e forma dos processos aero-micropilares descrito para as espécies neotropicais de Chinavia. Ninfas de 1º instar possuem uma mancha ovalada no dorso da cabeça e tórax, característica das espécies de Chinavia. Em C. pengue, essa mancha tem coloração laranja-avermelhada, e as manchas abdominais (4+4 manchas laterais e uma mediana são brancas. Características exclusivas das ninfas de 2º a 5º ínstares de C. pengue são a coloração laranja-avermelhada das manchas do pro- e mesotórax e das manchas circulares no centro das placas abdominais laterais. Não se observou sobreposição nas medidas da largura da cabeça entre os cinco ínstares. Cada fêmea depositou 15,9 ± 4,18 posturas e 218,8 ± 48,60 ovos, sendo 14 ovos/postura o arranjo mais freqüente. A fertilidade foi de 70,0% ± 19,01; a mortalidade no 2º ao 5º estádio foi de 1,6% ± 4,49. A razão sexual obtida foi de 1 macho: 1 fêmea. A duração da fase imatura (ovo a adulto foi de 45,7 ± 2,99 dias.Adults of Chinavia pengue (Rolston, 1983 were collected in Garopaba county, SC, and used to establish a laboratory culture under controlled conditions (24 ± 1°C; 70 ± 10% RH; 12hL:12hD. Adults and nymphs were fed with green beans (Phaseolus vulgaris L.. Eggs of C. pengue follow the pattern of coloration, chorion sculpture, color and shape of the aero-micropylar processes described to other neotropical Chinavia species. The first instar has the dorsal macula of the head and thorax characteristic of Chinavia species. In C. pengue, this macula is orange-red, and the abdominal maculae (4+4 lateral maculae and one median are white. From second to fifth instars diagnostic characteristics are orange-red maculae at pro and mesothorax, and at middle of abdominal lateral plates. There was no overlapping of the head-capsule measurements between the five instars of C. pengue. Each female laid an average of 15.9 ± 4.18 egg masses and 218.8 ± 48.60 eggs; there was a marked peak at 14 eggs per egg mass. Mean egg fertility was 70.0% ± 19.01; mortality in the second to fifth stadium was 1.6% ± 4.49. Sex ratio was 1 male: 1 female. The mean duration of the immature stage (egg to adult was 45.7 ± 2.99 days.

  18. Identification of multiple ear-colonizing insect and disease resistance in CIMMYT maize inbred lines with varying levels of silk maysin.

    Science.gov (United States)

    Ni, Xinzhi; Krakowsky, Matthew D; Buntin, G David; Rector, Brian G; Guo, Baozhu; Snook, Maurice E

    2008-08-01

    Ninety four corn inbred lines selected from International Center for the Improvement of Maize and Wheat (CIMMYT) in Mexico were evaluated for levels of silk maysin in 2001 and 2002. Damage by major ear-feeding insects [i.e., corn earworm, Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae); maize weevil, Sitophilus zeamais (Motschulsky) (Coleoptera: Curculionidae); brown stink bug, Euschistus servus (Say); southern green stink bugs, Nezara viridula (L.) (Heteroptera: Pentatomidae)], and common smut [Ustilago maydis DC (Corda)] infection on these inbred lines were evaluated in 2005 and 2006 under subtropical conditions at Tifton, GA. Ten inbred lines possessing good agronomic traits were also resistant to the corn earworm. The correlation between ear-feeding insect damage or smut infection and three phenotypic traits (silk maysin level, husk extension, and husk tightness of corn ears) was also examined. Corn earworm and stink bug damage was negatively correlated to husk extension, but not to either silk maysin levels or husk tightness. In combination with the best agronomic trait ratings that show the least corn earworm and stink bug damage, lowest smut infection rate, and good insect-resistant phenotypic traits (i.e., high maysin and good husk coverage and husk tightness), 10 best inbred lines (CML90, CML92, CML94, CML99, CML104, CML108, CML114, CML128, CML137, and CML373) were identified from the 94 lines examined. These selected inbred lines will be used for further examination of their resistance mechanisms and development of new corn germplasm that confers multiple ear-colonizing pest resistance.

  19. Competitive release and outbreaks of non-target pests associated with transgenic Bt cotton.

    Science.gov (United States)

    Zeilinger, Adam R; Olson, Dawn M; Andow, David A

    2016-06-01

    The adoption of transgenic Bt cotton has, in some cases, led to environmental and economic benefits through reduced insecticide use. However, the distribution of these benefits and associated risks among cotton growers and cotton-growing regions has been uneven due in part to outbreaks of non-target or secondary pests, thereby requiring the continued use of synthetic insecticides. In the southeastern USA, Bt cotton adoption has resulted in increased abundance of and damage from stink bug pests, Euschistus servus and Nezara viridula (Heteroptera: Pentatomidae). While the impact of increased stink bug abundance has been well-documented, the causes have remained unclear. We hypothesize that release from competition with Bt-susceptible target pests may drive stink bug outbreaks in Bt cotton. We first examined the evidence for competitive release of stink bugs through meta-analysis of previous studies. We then experimentally tested if herbivory by Bt-susceptible Helicoverpa zea increases stink bug leaving rates and deters oviposition on non-Bt cotton. Consistent with previous studies, we found differences in leaving rates only for E servus, but we found that both species strongly avoided ovipositing on H. zea-damaged plants. Considering all available evidence, competitive release of stink bug populations in Bt cotton likely contributes to outbreaks, though the relative importance of competitive release remains an open question. Ecological risk assessments of Bt crops and other transgenic insecticidal crops would benefit from greater understanding of the ecological mechanisms underlying non-target pest outbreaks and greater attention to indirect ecological effects more broadly.

  20. Changes in nutritional composition of soybean seed caused by feeding of pentatomid (Hemiptera: Pentatomidae) and alydid bugs (Hemiptera: Alydidae).

    Science.gov (United States)

    Bae, Soon Do; Kim, Hyun Ju; Mainali, Bishwo Prasad

    2014-06-01

    Changes in protein, lipid, and carbohydrate content, and the weight loss of soybean seeds caused by the feeding of 6- to 7-d-old unmated male adults of the pentatomids Peizodorous hybneri (Gmelin) and Halymorpha halys (Stål), and an alydid, Riptortus pedestris (F.), were examined in the laboratory. Our goals were to determine which species had the greatest capacity to damage soybean seed and to measure the effect of that damage on the nutritional composition of soybean seed. Individuals of the three species were provided with a preweighed dry soybean seed and allowed to feed for 0, 4, 8, 12, 16, 20, and 24 d, after which the remaining seed was analyzed for any change in weight, protein, lipid, and carbohydrate concentration. Lipids, carbohydrates, and seed weights were reduced by bug feeding, and the reduction was directly proportional to feeding duration. H. halys was found to be the most voracious feeder, reducing soybean seed weight by 42% after 24 d of feeding. There was a significant interaction between species and feeding duration for changes in nutritional components. Seeds fed on by H. halys had the highest incremental increase in protein content (13%) after 24 d of feeding, followed by those fed on by R. pedestris and P. hybneri. However, carbohydrates and lipid content of the soybean seeds fed by the tested insect species were found to decrease significantly. Soybean pods at mature stages remain in the field for a long period, and findings of our study suggest that longer exposure of the mature soybean pods to these pest species in the field may lead to low-quality seeds and lower yields, and may even affect the germination potential of the seeds.

  1. Development and reproduction of Podisus nigrispinus (Hemiptera: Pentatomidae fed with Thyrinteina arnobia (Lepidoptera: Geometridae reared on guava leaves

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    Harley Nonato de Oliveira

    2011-06-01

    Full Text Available The aim of this study was to evaluate the development and reproduction of P. nigrispinus in laboratory when fed with T. arnobia reared on guava leaves. This predator showed nymphal stage of 21.11 days, survival of 60% and periods of pre-oviposition, number of eggs/mass and eggs/female and egg viability of 6.10 days, 26.24 eggs, 314.90 eggs and 82.65%, respectively. These results demonstrated that T. arnobia fed with guava leaves was an adequate supply of food to P.nigrispinus.

  2. Development and reproduction of Podisus nigrispinus (Hemiptera: Pentatomidae) fed with Thyrinteina arnobia (Lepidoptera: Geometridae) reared on guava leaves

    OpenAIRE

    Oliveira, Harley Nonato de; Espindula, Marcelo Curitiba; Duarte, Marcela Marcelino; Pereira, Fabrício Fagundes; Zanuncio, José Cola

    2011-01-01

    The aim of this study was to evaluate the development and reproduction of P. nigrispinus in laboratory when fed with T. arnobia reared on guava leaves. This predator showed nymphal stage of 21.11 days, survival of 60% and periods of pre-oviposition, number of eggs/mass and eggs/female and egg viability of 6.10 days, 26.24 eggs, 314.90 eggs and 82.65%, respectively. These results demonstrated that T. arnobia fed with guava leaves was an adequate supply of food to P.nigrispinus.

  3. Biochemical characterisation of the tissue degrading enzyme, collagenase, in the spined soldier bug, Podisus maculiventris (Hemiptera: Pentatomidae

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    Ghamari Mahboob

    2014-07-01

    Full Text Available Podisus maculiventris (Say is a generalist predator attacking many insect species from different orders. The bug injects saliva into its prey's body. The ingested hemolymph and liquefied internal tissues pass through the bug's alimentary tract. Collagenase working on peptide bonds of collagen and basement membrane proteins, leads to the disintegration of the prey's internal organs. As yet, there is an almost complete lack of knowledge on the collagenase activity in P. maculiventris. The collagenase activity of the salivary glands and midgut was optimum at pH 8.0 which was congruent with the optimal pH of the total proteolytic activity of the salivary glands. More collagenolytic activity was determined in the posterior lobe of the salivary glands and anterior midgut. Significant inhibition of collagenolytic activity by ethylenediaminetetraacetic acid (EDTA revealed the enzyme is a metalloproteinase. The collagenase activity notably decreased when the bug went hungry. The salivary gland collagenase is a vital enzyme in extra-oral digestion and facilitates the action of other digestive enzymes. The midgut collagenase may be involved in the digestion of the ingested muscle fibers. The collagenase probably acts as an intoxicating agent in the saliva (venom of P. maculiventris. Paralysing toxins are present in the salivary gland secretion.

  4. Ingestion of a marked bacterial pathogen of cotton conclusively demonstrates feeding by first instar southern green stink bug (Hemiptera: Pentatomidae)

    Science.gov (United States)

    Long-held dogma dictates that 1st instars of Nezara viridula (L.) do not feed, yet recent observations of stylet activity within a food source suggest otherwise. As a cosmopolitan pest of cotton and other high-value cash crops, confirmation of feeding by 1st instars may ultimately influence the biol...

  5. Use of black light traps to monitor the abundance, spread, and flight behavior of Halyomorpha halys (Hemiptera: Pentatomidae).

    Science.gov (United States)

    Nielsen, Anne L; Holmstrom, Kristian; Hamilton, George C; Cambridge, John; Ingerson-Mahar, Joseph

    2013-06-01

    Monitoring the distribution and abundance of an invasive species is challenging, especially during the initial years of spread when population densities are low and basic biology and monitoring methods are being investigated. Brown marmorated stink bug (Halyomorpha halys (Stål)) is an invasive agricultural and urban pest that was first detected in the United States in the late 1990s. At the time of its detection, no method was available to effectively track H. halys populations, which are highly mobile and polyphagous. One possible solution was the utilization of black light traps, which are nonspecific traps attractive to night flying insects. To determine if black light traps are a reliable monitoring tool for H. halys, a state-wide network of 40-75 traps located on New Jersey farms were monitored from 2004 to 2011 for H. halys. This proved to be a highly effective method of monitoring H. halys populations and their spread at the landscape level. The total number of brown marmorated stink bug caught in New Jersey increased exponentially during this period at a rate of 75% per year. Logistic regression estimates that 2.84 new farms are invaded each year by H. halys. The results indicate that black light traps are attractive to early season populations as well as at low population densities. Weekly trap catch data are being used to generate state-wide population distribution maps made available to farmers in weekly newsletters and online. While no economic threshold currently exists for brown marmorated stink bug, the maps provide farmers with a tool to forecast pest pressure and plan management.

  6. Toxicity of essential oils from leaves of Piperaceae species in rice stalk stink bug eggs, Tibraca limbativentris (Hemiptera: Pentatomidae

    Directory of Open Access Journals (Sweden)

    Diones Krinski

    Full Text Available ABSTRACT Tibraca limbativentris to is an important rice pest and occurs in all rice-growing regions of Latin America. The control this insect is accomplished with synthetic chemical insecticides, however, new approaches are needed to reduce risks to the environment, to the natural enemies and also to avoid the onset of insecticides resistance. This study was designed to assess the toxicity of essential oils (EOs from leaves of Piper aduncum, P. gaudichaudianum, P. malacophyllum, P. marginatum and P. tuberculatum (Piperaceae on rice stalk stink bug eggs, T. limbativentris. Essential oils were extracted with steam distillation and dilutions were made for bioassays at concentrations of 0.25; 0.5; 1.0; 2.0 and 4.0%. Essential oils from all species of Piperaceae displayed ovicidal activity. The LC50 values indicated that both younger and older eggs were susceptible to these oils. Ovicidal activity is related to the potential toxicity of several compounds, especially dilapiolle, myristicin, cubebene, α-guaiene, longifolene, prezizane, spathulenol, sabinene and δ-2-carene. Thus, EOs tested showed promising results for use as biorational botanical insecticides.

  7. Monitoramento do percevejo marrom Euschistus heros (Hemiptera: Pentatomidae por feromônio sexual em lavoura de soja

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    Valvenarg Pereira da Silva

    2014-11-01

    Full Text Available O objetivo deste trabalho foi avaliar a eficiência das formulações septo de borracha e lure do feromônio sexual do percevejo marrom Euschistus heros e compará-la ao método do pano de batida, para o monitoramento dessa praga em lavoura de soja. Os tratamentos foram: feromônio em septo de borracha, feromônio em lure e amostragem com pano de batida. As amostragens foram realizadas semanalmente durante a fase reprodutiva da soja (dez semanas. Para estimar a densidade populacional de percevejos e compará-la à captura nas armadilhas de feromônio, foram efetuados quatro panos de batida por semana em todas as parcelas; além disso, foi determinado o número de percevejos capturados nas armadilhas por semana. Os danos provocados pelos percevejos nas sementes foram analisados pelo teste de tetrazólio. As formulações do feromônio foram eficientes na captura de E. heros, e a formulação em lure capturou mais percevejos. O controle precoce da população, indicado pelo nível de controle nas armadilhas com feromônio, resultou em sementes com maior qualidade do que as provenientes das parcelas monitoradas pelo pano de batida. Assim, as armadilhas com feromônio são mais eficientes que o pano de batida para o monitoramento das populações de percevejos durante a fase crítica do ataque deste inseto nas lavouras de soja.

  8. Avaliação de óleo essencial de Eucalyptus urograndis(Myrtaceae no controle de Pentatomidae

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    Taciany Ferreira de Souza

    Full Text Available O objetivo dessa pesquisa foi avaliar o potencial inseticida do óleo essencial de Eucalyptus urograndis para o controle de ninfas e adultos de Euschistus heros (Fabricius, 1794 em bioensaios de laboratório. Foram avaliados quatro parâmetros em ninfas e adultos dessa espécie: exposição por aplicação tópica, exposição em superfície de contato, fagoinibição sem chance de escolha e fagoinibição com dupla chance de escolha. A avaliação, observando-se o número de indivíduos vivos e mortos, foi feita no período de 24 e 48 horas. Constatou-se que óleo essencial de E. urograndis é tóxico para ninfas e adultos de E. heros. Tanto as Doses Letais (DL como as Concentrações Letais (CL determinadas para o óleo diminuíram à medida que aumentou o tempo de exposição dos insetos e a dose aplicada do óleo essencial, indicando uma dependência com o tempo de exposição. Verificou-se que as sementes tratadas com óleo essencial provocaram ação fagoinibidora reduzindo os pontos de alimentação, mostrando-se promissor para o controle alternativo desse inseto.

  9. Use of artificial substrates of different colors for oviposition by the brown stink bug Euschistus heros (Hemiptera, Pentatomidae

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    Diones Krinski

    2013-09-01

    Full Text Available Aiming to contribute to a rearing methodology for the brown stink bug, Euschistus heros, in the laboratory, we evaluated oviposition on artificial substrates of different colors. During six days, oviposition was evaluated daily, by counting the total number of eggs, number of clutches, and eggs/clutch. Females laid 12,463 eggs, in 1,677 clutches, resulting in an average of 7.28 ± 0.44 eggs/clutch. Black, brown, and green felt had the most eggs and clutches. The results demonstrated that many colors are suitable as oviposition substrate for E. heros, providing information for the mass rearing of this insect.

  10. Revision of Ascra with proposition of the bifida species group and description of two new species (Hemiptera: Pentatomidae: Edessinae).

    Science.gov (United States)

    Santos, Bianca Tamires Silva Dos; Silva, Valeria Juliete Da; Fernandes, Jose Antonio Marin

    2015-10-30

    Edessa is comprised of six subgenera, Aceratodes, Ascra, Dorypleura, Edessa, Hypoxys and Pygoda. Ascra is here elevated to genus status based on characteristics of the male and female genitalia and the gibbous pronotum. This genus is comprised of eight species previously placed in Edessa-E. bifida, E. cordifera, E. petersii, E. abdita, E. championi, E. privata, E. conspersa and E. morbosa, as well as six new species. The genus Ascra was further divided into two groups of species bifida and privata separated by a different pattern of punctuation on body and pygophore. Here we present only the bifida species group formed by A. bifida, A. cordifera, A. petersii, A. abdita, and A. championi, as well as two new species-A. vluteum and A. flavoscutellata. Lectotypes of Aceratodes sigillatus, Edessa abdita, E. championi, E. cornuta, E. densata and E. petersii are designated. Aceratodes sigillatus, Edessa cornuta, E. densata, E. picata, and E. florida are considered junior synonyms of A. bifida. Interestingly, some species of this genus are considered edible in Mexico.

  11. Performance of reproductive system of Dichelops melacanthus (Hemiptera: Pentatomidae subjected to buprofezin and pyriproxyfen: morphological analysis of ovarioles and testes

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    Paulo Sérgio Gimenez Cremonez

    2017-08-01

    Full Text Available The use of insecticides known as insect growth regulators, which are considered more selective to natural enemies, may be an alternative to integrated pest management of stink bugs of the main crops in Brazil. The objective of this study was to evaluate histological changes in the reproductive system of Dichelops melacanthus as well as female fecundity and egg fertility after use of growth-regulating insecticides. The insecticides used were buprofezin (a chitin biosynthesis inhibitor at a sublethal concentration (LC30 of 2.99 g L-1 and pyriproxyfen (a juvenile hormone analog at a sublethal concentration (LC30 of 8.35 mL L-1. A completely randomized experimental design was used, with 10 repetitions and 10 insects per experimental unit. Two bioassays were performed: in the first bioassay, fecundity (eggs/female and fertility (nymph eclosion of the insects that survived the insecticides were evaluated; in the second bioassay, morphological alterations of the ovarioles of adult females and of the testes of adult male insects that survived the insecticides were evaluated. Buprofezin and pyriproxyfen did not affect the adult sex ratio or female fecundity. Pyriproxyfen reduced the percentage of ecloded nymphs (71.6% compared with that of the control and buprofezin (96.4 and 90.6%, respectively treatments and had an ovicidal effect, with direct and indirect action on embryogenesis. Morphological changes were observed in both treatments with buprofezin and pyriproxyfen. The alterations observed in female and male reproductive systems may occur by the action of buprofezin and pyriproxyfen on the morphology of both ovarioles and testes.

  12. Adjacent habitat influence on stink bug (Hemiptera: Pentatomidae) densities and the associated damage at field corn and soybean edges.

    Science.gov (United States)

    Venugopal, P Dilip; Coffey, Peter L; Dively, Galen P; Lamp, William O

    2014-01-01

    The local dispersal of polyphagous, mobile insects within agricultural systems impacts pest management. In the mid-Atlantic region of the United States, stink bugs, especially the invasive Halyomorpha halys (Stål 1855), contribute to economic losses across a range of cropping systems. Here, we characterized the density of stink bugs along the field edges of field corn and soybean at different study sites. Specifically, we examined the influence of adjacent managed and natural habitats on the density of stink bugs in corn and soybean fields at different distances along transects from the field edge. We also quantified damage to corn grain, and to soybean pods and seeds, and measured yield in relation to the observed stink bug densities at different distances from field edge. Highest density of stink bugs was limited to the edge of both corn and soybean fields. Fields adjacent to wooded, crop and building habitats harbored higher densities of stink bugs than those adjacent to open habitats. Damage to corn kernels and to soybean pods and seeds increased with stink bug density in plots and was highest at the field edges. Stink bug density was also negatively associated with yield per plant in soybean. The spatial pattern of stink bugs in both corn and soybeans, with significant edge effects, suggests the use of pest management strategies for crop placement in the landscape, as well as spatially targeted pest suppression within fields.

  13. Adjacent habitat influence on stink bug (Hemiptera: Pentatomidae densities and the associated damage at field corn and soybean edges.

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    P Dilip Venugopal

    Full Text Available The local dispersal of polyphagous, mobile insects within agricultural systems impacts pest management. In the mid-Atlantic region of the United States, stink bugs, especially the invasive Halyomorpha halys (Stål 1855, contribute to economic losses across a range of cropping systems. Here, we characterized the density of stink bugs along the field edges of field corn and soybean at different study sites. Specifically, we examined the influence of adjacent managed and natural habitats on the density of stink bugs in corn and soybean fields at different distances along transects from the field edge. We also quantified damage to corn grain, and to soybean pods and seeds, and measured yield in relation to the observed stink bug densities at different distances from field edge. Highest density of stink bugs was limited to the edge of both corn and soybean fields. Fields adjacent to wooded, crop and building habitats harbored higher densities of stink bugs than those adjacent to open habitats. Damage to corn kernels and to soybean pods and seeds increased with stink bug density in plots and was highest at the field edges. Stink bug density was also negatively associated with yield per plant in soybean. The spatial pattern of stink bugs in both corn and soybeans, with significant edge effects, suggests the use of pest management strategies for crop placement in the landscape, as well as spatially targeted pest suppression within fields.

  14. Effects of environmental and architechtural diversity of Caryocar brasiliense (Malpighiales: Caryocaraceae on Edessa ruformaginata (Hemiptera: Pentatomidae and its biology

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    Germano Leao Demolin Leite

    2016-01-01

    Full Text Available We studied the effect of environmental complexity and plant architecture on the abundance of the Edessa rufomarginata bugs in pastures and cerrado areas and its biology. We observed higher number of bugs on Caryocar brasiliense trees in the cerrado than pasture areas. Bugs were more abundant on leaves and branches rather than fruits. Caryocar brasiliense had greatest fruit production on pasture than in the cerrado areas. The abundance of bugs was correlated positively with aluminum, organic matter, and tree height, but negatively correlated by soil pH. Productivity of C. brasiliense were negatively correlated with aluminum, pH, and number of bugs, but positively correlated with phosphorus and calcium. The number of eggs per clutch was 14.3, their viability was 93% and the embryonic period was 6.9 days. The respective length and width of each instar were: first instar 3.3 mm and 2.4 mm, second 4.1 mm and 3.0 mm, third 6.7 mm and 3.0mm, and fourth 11.5 mm and 3.5 mm. The respective length and width of adults were: males, 15.8 mm and 8.6 mm and females, 17.3 mm and 9.1 mm. The sex ratio was 0.43, and the total duration of the life cycle of E. rufomarginata was 156 days.

  15. Optical illusions in scanning electron micrographs: the case of the eggshell of Acrosternum (Chinavia) marginatum (Hemiptera: Pentatomidae).

    Science.gov (United States)

    Wolf, Klaus W; Reid, Walton; Schrauf, Michael

    2003-01-01

    Scanning electron microscopy revealed that-as is common in this family of the Hemiptera-the eggs of the green stink bug Acrosternum (Chinavia) marginatum are roughly barrel-shaped and possess at their apical pole a row of slender extensions, the aero-micropylar processes. The outer surface of the eggshell carries hexagonally arranged pits. The analysis of cross-fractured eggshells showed that the pits have slender basal extensions with transverse diaphragms. When scanning electron micrographs of the egg surface of A. marginatum are viewed upside down, the perception flips and the pits appear as elevations to all observers addressed. Thus, we are dealing with an optical illusion, which is known as the 'shape-from-shading effect'. The perceived dents remain robust to changes in the angle of recording (zero to ca. 60 degrees tilt), the magnification (ca. x100 to x1400), and the number of pits included in the micrograph (one to several hundred). When through appropriate positioning of the specimen under the electron beam, contrast is significantly reduced and the distinct shadows at the slope of the pits are eliminated, the optical illusion does not appear. It is inferred that shades provide the decisive clue that determines whether bumps or dents will be perceived. Owing to the low resolution of their compound eyes, the shape-from-shading effect on the eggshell of the bug is in all likelihood not perceived by insects.

  16. Taxonomía y distribución del género Leptoscelis en Costa Rica (Hemiptera: Heteroptera: Coreidae: Leptoscelini Taxonomy and distribution of the genus Leptoscelis in Costa Rica (Hemiptera: Heteroptera: Coreidae: Leptoscelini

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    Harry Brailovsky

    2012-03-01

    Full Text Available Se revisa el género Leptoscelis Laporte (Coreidae: Leptoscelini para Costa Rica y se describe una especie nueva, L. conspicuus. Se discuten sus relaciones con L. quadrisignatus (Distant y L. tricolor Westwood. Leptoscelis bisbimaculata Breddin es sinonimizada con L. quadrisignatus. Se cita por primera vez L. tricolor para Costa Rica. El trabajo incluye nuevos datos de distribución para el género, ilustraciones de las especies y de los parámeros y una clave para la identificación de las especies costarricenses.The genus Leptoscelis Laporte (Coreidae: Leptoscelini from Costa Rica is revised. One new species, L. conspicuus, is described and compared with L. quadrisignatus (Distant and L. tricolor Westwood. Leptoscelis bisbimaculata Breddin is synonymized with L. quadrisignatus. Leptoscelis tricolor is recorded for the first time from Costa Rica. New distribution records are presented. Habitus illustrations and drawings of parameres are provided. A key to the known Costarican species is presented.

  17. Description of the immature stages of Sigara (Tropocorixa jensenhaarupi (Hemiptera: Heteroptera: Corixidae: Corixini, with ecological notes Descripción de los estadios larvales de Sigara (Tropocorixa jensenhaarupi (Heteroptera: Corixidae, con notas acerca de su ecología

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    María Cecilia Melo

    2011-03-01

    Full Text Available Sigara (Tropocorixa jensenhaarupi Jaczewski is the smallest species of the subgenus ranging from 4.2-4.7 mm, and it is characterized by the absence of a strigil, the small and narrow genital capsule with a short hypandrium in males, and the shape of the abdominal tergite VII in females. This species is endemic to the Patagonian subregion (Andean region in Argentina. A monthly sampling study was performed during a year in northern Mendoza, and additional material was collected in southern Mendoza, more precisely from Bañado Carilauquen in the Llancanelo Lake Reserve (Malargüe Department. Since little is known about the ecological requirements of S. (T. jensenhaarupi, herein we describe its habitat, the environmental conditions and its association with other macroinvertebrates. Also, we provide a morphological description of larval stages, and provide new records of this species.Sigara (Tropocorixa jensenhaarupi Jaczewski es la especie más pequeña del subgénero (4.2-4.7 mm, y se caracteriza por la ausencia de estrigilo, la cápsula genital masculina pequeña y angosta con el hipandro corto, y la forma característica del tergito abdominal VII en las hembras. Esta especie es endémica de la subregión Patagónica (región Andina en Argentina. Se realizaron muestreos mensuales durante un año en el norte de la provincia de Mendoza, material adicional fue recolectado en el sur de la provincia, más precisamente en el Bañado Carilauquen en la Reserva Laguna Llancanelo (Departamento de Malargüe. Poco se conoce acerca de los requerimientos ecológicos de S. (T. jensenhaarupi, por lo que en este trabajo describimos su hábitat, las condiciones ambientales y su asociación con otros macroinvertebrados. Además, describimos los estadios larvales y damos nuevos registros de esta especie.

  18. Diversity of Ephemeroptera (Insecta of the Serra da Mantiqueira and Serra do Mar, southeastern Brazil

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    Ana Emilia Siegloch

    2012-12-01

    Full Text Available The aim of this study was to inventory the mayfly fauna, based on nymphal and alate stages, in Serra da Mantiqueira and in Serra do Mar, São Paulo State, as well as to present information about habitats used by the genera. Nymphs were collected in several streams and mesohabitats with a Surber sampler and the winged stages with light attraction methods, entomological nets, and Malaise traps. In all, eight families and 33 genera were recorded, representing a very significant portion of the Brazilian fauna (80% of families and 49% of genera. Furthermore, it was possible to identify 11 species, of which two are new records for the state: Tricorythodes santarita Traver and Caenis reissi Malzacher. Despite the high diversity recorded, the accumulation curves presented an ascending form, indicating an increase in the number of genera with additional sampling effort. The high richness found in these areas are in agreement with the high biodiversity of the Atlantic Forest biome and the sampling effort employed, which included the use of different methods, the collection of both nymphs and winged stages, and the sampling of a large area with diverse streams and habitats.

  19. Psocoptera (Insecta: Psocodea from the National Natural Park Gorgona, Cauca, Colombia

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    Fabio Sarria-S

    2014-02-01

    Full Text Available La fauna de Psocoptera (Psocodea del Parque Nacional Natural Gorgona, consiste de 75 especies en 42 géneros y 21 familias. 1 730 especimenes fueron recolectados en el periodo entre noviembre de 2007 y junio de 2011. Cinco familias, 20 géneros y nueve especies son nuevos registros para Colombia, y dos géneros y diez especies son nuevos para la ciencia. La fauna de Psocoptera de la isla constituye una extensión de la fauna continental.

  20. New predatory cockroaches (Insecta: Blattaria: Manipulatoridae fam.n.) from the Upper Cretaceous Myanmar amber

    Science.gov (United States)

    Vršanský, Peter; Bechly, Günter

    2015-04-01

    We describe a new extinct lineage Manipulatoridae (new family) of cockroaches from the Upper Cretaceous (Cenomanian) amber of Myanmar. Manipulator modificaputis gen. et sp. n. is a morphologically unique extinct cockroach that represents the first (of a total of 29 known worldwide) cockroach family reported exclusively from the Myanmar amber. This family represents an early side branch of the stem group of Mantodea (most probably a sister group of Eadiidae within Blattaria/Corydioidea) because it has some synapomorphies with the Mantodea (including the stem group and Eadiidae). This family also retains symplesiomorphies that exclude a position in the crown group, and furthermore has unique autapomorphies that exclude a position as a direct ancestor of Mantodea. The unique adaptations such as strongly elongated extremities and freely movable head on a long neck suggest that these animals were pursuit predators. Five additional specimens (including two immatures) reported from the Myanmar amber suggest that this group was relatively rare but belonged to the indigenous and autochthonous inhabitants of the ancient amber forest of the Myanmar region.

  1. New taxonomic and faunistic data on the dusty wings from Senegal (Insecta, Neuroptera, Coniopterygidae

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    Monserrat, V. J.

    2006-06-01

    Full Text Available New data on the taxonomy, biology, distribution and/or morphology of eight dusty wing species from Senegal are given. None had previously been recorded from this country. In this African area (where the Afrotropical and Palaearctic Biogeographical Regions contact a great number of species can be found, mostly afrotropical elements, but also some palaearctic elements and species with a wide circumsaharan distribution are present. A great faunistic similarity between the Senegalese Fauna and the SW Arabian Peninsula fauna is noted, and both areas show many common elements present in the East-West Afrotropical northern borders. Some new synonymies are proposed as follow: Aleuropteryx felix Meinander, 1977 = (Aleuropteryx teleki Sziráki, 1990 = Aleuropteryx transvaalensis Meinander, 1998, Aleuropteryx Arabica Meinander, 1977 = (Aleuropteryx cruciata Sziráki, 1990, Coniocompsa silvestriana Enderlein, 1914 = (Coniocompsa arabica Sziráki, 1992 = Coniocompsa fimbrata Tjeder, 1957, Coniopteryx (Coniopteryx greenpeace Monserrat, 1995 = (Coniopteryx (Coniopteryx sclerotica Meinander, 1998, Coniopteryx (Xeroconiopteryx triantennata Monserrat, 1995 = (Coniopteryx (Xeroconiopteryx sestertia Meinander, 1998 and Nimboa marroquina Monserrat, 1985 = (Nimboa manselli Meinander, 1998. Also a replacement name: Coniopteryx (Xeroconiopteryx conviventibus nom. nov. is proposed for Coniopteryx (Xeroconiopteryx furcata Meinander, 1998 nec Coniopteryx (Scotoconiopteryx furcata Meinander, 1983.

    Se anotan nuevos datos sobre la taxonomía, biología, distribución y /o morfología de ocho especies de coniopterígidos recolectados en Senegal. Ninguna de ellas había sido citada en este país. Al igual que ocurre en el SO de la Península Arábiga, esta zona del Continente Africano (donde confluyen las Regiones Biogeográficas Afrotropical y Paleártica es especialmente rica en especies, la mayoría son afrotropicales, pero también están presentes algunos elementos paleárticos y otros de amplia distribución circumsahariana. Se anota una marcada similitud faunística entre ambas zonas con elementos comunes que alcanzan las zonas septentrionales que al este y el oeste limitan la Región Afrotropical. Se proponen como nuevas sinonimias a: Aleuropteryx felix Meinander, 1977 = (Aleuropteryx teleki Sziráki, 1990 = Aleuropteryx transvaalensis Meinander, 1998, Aleuropteryx arabica Meinander, 1977 = (Aleuropteryx cruciata Sziráki, 1990, Coniocompsa silvestriana Enderlein, 1914 = (Coniocompsa arabica Sziráki, 1992 = Coniocompsa fimbrata Tjeder, 1957, Coniopteryx (Coniopteryx greenpeace Monserrat, 1995 = (Coniopteryx (Coniopteryx sclerotica Meinander, 1998, Coniopteryx (Xeroconiopteryx triantennata Monserrat, 1995 = (Coniopteryx (Xeroconiopteryx sestertia Meinander, 1998 y Nimboa marroquina Monserrat, 1985 = (Nimboa manselli Meinander, 1998 y se propone un nombre de reemplazo a: Coniopteryx (Xeroconiopteryx conviventibus nom. nov. para Coniopteryx (Xeroconiopteryx furcata Meinander, 1998 nec Coniopteryx (Scotoconiopteryx furcata Meinander, 1983.

  2. Review of the genus Namadytes Hesse, 1969 (Insecta: Diptera: Mydidae: Syllegomydinae

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    Torsten Dikow

    2014-03-01

    Full Text Available The Mydidae genus Namadytes Hesse, 1969 is reviewed. It is known from five species, primarily occurring in Namibia. The study of newly available material from both Namibia and South Africa deposited in several natural history collections results in the recognition of three species and new synonymy of two, i.e., Namadytes pallidus Hesse, 1972 is a new junior synonym of Namadytes maculiventris (Hesse, 1969 and Namadytes prozeskyi Hesse, 1969: 282 is a new junior synonym of Namadytes vansoni Hesse, 1969: 280. All three species are re-described and comments on sexual dimorphism and intraspecific variation are made, a dichotomous key for their identification is presented, and illustrations and photographs are provided to support the descriptions and facilitate future identification. Distribution, occurrence in biodiversity hotspots sensu Conservation International, and seasonal incidence with associated weather and climatic data are discussed for all species. A morphological structure ventral to the halter and posterior to the metathoracic spiracle, the infra-halter sclerite, is here newly termed.

  3. Centrioles to basal bodies in the spermiogenesis of Mastotermes darwiniensis (Insecta, Isoptera).

    Science.gov (United States)

    Riparbelli, Maria Giovanna; Callaini, Giuliano; Mercati, David; Hertel, Horst; Dallai, Romano

    2009-05-01

    In addition to their role in centrosome organization, the centrioles have another distinct function as basal bodies for the formation of cilia and flagella. Centriole duplication has been reported to require two alternate assembly pathways: template or de novo. Since spermiogenesis in the termite Mastotermes darwiniensis lead to the formation of multiflagellate sperm, this process represents a useful model system in which to follow basal body formation and flagella assembly. We present evidence of a possible de novo pathway for basal body formation in the differentiating germ cell. This cell also contains typical centrosomal proteins, such as centrosomin, pericentrin-like protein, gamma-tubulin, that undergo redistribution as spermatid differentiation proceeds. The spermatid centrioles are long structures formed by nine doublet rather than triplet microtubules provided with short projections extending towards the surrounding cytoplasm and with links between doublets. The sperm basal bodies are aligned in parallel beneath the nucleus. They consist of long regions close to the nucleus showing nine doublets in a cartwheel array devoid of any projections; on the contrary, the short region close to the plasma membrane, where the sperm flagella emerge, is characterized by projections similar to those observed in the centrioles linking the basal body to the plasma membrane. It is hypothesized that this appearance is in connection with the centriole elongation and further with the flagellar axonemal organization. Microtubule doublets of sperm flagellar axonemes are provided with outer dynein arms, while inner arms are rarely visible. (c) 2009 Wiley-Liss, Inc.

  4. Asymmetric larval head and mandibles of Hydrophilus acuminatus (Insecta: Coleoptera, Hydrophilidae): Fine structure and embryonic development.

    Science.gov (United States)

    Sato, Shun'ichi; Inoda, Toshio; Niitsu, Shuhei; Kubota, Souichirou; Goto, Yuji; Kobayashi, Yukimasa

    2017-11-01

    The larvae of a water scavenger beetle, Hydrophilus acuminatus, have strongly asymmetric mandibles; the right one is long and slender, whereas the left one is short and stout. The fine structure and embryonic development of the head capsule and mandibles of this species were examined using light and scanning electron microscopy, and asymmetries in shape were detected in these structures applying an elliptic Fourier analysis. The larval mandibles are asymmetric in the following aspects: whole length, the number, structure and arrangement of retinacula (inner teeth), and size and shape of both the molar and incisor regions. The larval head is also asymmetric; the left half of the head capsule is larger than the right, and the left adductor muscle of the mandible is much thicker than the right. The origin and developmental process of asymmetric mandibles were traced in developing embryos whose developmental period is about 270 h and divided into 10 stages. Mandibular asymmetries are produced by the cumulative effects of six stepwise modifications that occur from about 36% of the total developmental time onward. The significance of these modifications was discussed with respect to the functional advantages of asymmetries and the phylogeny of members of the Hydrophilidae. Copyright © 2017 Elsevier Ltd. All rights reserved.

  5. Melittofauna and Other Potential Pollinators in Wetland and Uplands in South Central Nebraska (Insecta: Apoidea).

    Science.gov (United States)

    Park, Cynthia N; Overall, Lisa M; Smith, Loren M; Lagrange, Ted; McMurry, Scott

    2017-03-10

    Our objective was to document potential wild pollinating insects in south central Nebraska. This intensively cultivated region is known as the Rainwater Basin and contains some of the most endangered wetland systems in North America. We used blue vane traps to passively collect insects and insect nets to actively collect on flowering plants from April through October in 2014 and 2015. Habitat types included playa wetlands, adjacent mixed and tallgrass prairies, and agricultural fields. Over 112,000 insects were collected; Hymenoptera represented 78% of the total, and the families Apidae and Halictidae comprised 99% of the total melittofauna. Insects from 13 orders were collected, but Hymenoptera, Diptera, and Coleoptera were the most abundant potential pollinators.

  6. METABOLISMUS EKDYSTEROIDŮ U HMYZU (Insecta) A VÝZNAM HMYZÍ STŘEVNÍ MIKROFLÓRY

    Czech Academy of Sciences Publication Activity Database

    Pavlík, Milan; Ryšavá, Hana; Wimmer, Zdeněk

    2010-01-01

    Roč. 104, č. 9 (2010), s. 831-837 ISSN 0009-2770 R&D Projects: GA MŠk 2B06024 Institutional research plan: CEZ:AV0Z50380511 Keywords : intestinal symbiotic microbiota * bioassays 20-hydroxyecdysone * pesticide Subject RIV: CC - Organic Chemistry Impact factor: 0.620, year: 2010 http://www.chemicke-listy.cz/common/article-vol_104-issue_9-page_831.html

  7. New species and new records of Mydidae from the Afrotropical and Oriental regions (Insecta, Diptera, Asiloidea

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    Torsten Dikow

    2010-10-01

    Full Text Available New Mydidae species are described from the Afrotropical and Oriental regions including the first records of this family from several countries in eastern Africa (Kenya, Tanzania, and Uganda and Mauritania in western Africa as well as Nepal and Thailand in Asia. The new species are, Leptomydinae: Leptomydas notos sp. n. (south-western India, Leptomydas rapti sp. n. (south-central Nepal, Leptomydas tigris sp. n. (north-central Thailand; Syllegomydinae: Mydaselpidini: Mydaselpis ngurumani sp. n. (south-eastern Kenya, north-eastern Tanzania, Vespiodes phaios sp. n. (south-eastern Kenya; Syllegomydinae: Syllegomydini: Syllegomydas (Notobates astrictus sp. n. (Kenya, Syllegomydas (Notobates heothinos sp. n. (Kenya and Uganda, Syllegomydas (Syllegomydas elachys sp. n. (northern Zimbabwe. Syllegomydas (Syllegomydas proximus Séguy, 1928 is recorded from western Mauritania and re-described. Syllegomydas (Notobates dispar (Loew, 1852, which was previously listed as incertae sedis in the Afrotropical Diptera catalogue, is re-described and illustrated based on examination of the type specimens and several additional specimens from Mozambique. Cephalocera annulata Brunetti, 1912 and Syllegomydas bucciferus Séguy, 1928, described from north-eastern India and previously unplaced in the Oriental Diptera catalogue, are newly combined with Leptomydas Gerstaecker, 1868 and together with Leptomydas indianus Brunetti, 1912, also from north-eastern India, placed in Leptomydinae. Comments on the possible synonymy of the genera of Mydaselpidini are made. Illustrations and photographs are provided to support the descriptions and future identification. A provisional dichotomous key to Mydidae genera occurring in eastern Africa (Kenya, Malawi, Mozambique, Somalia, Tanzania, Uganda and the Oriental Region is provided. Distribution, occurrence in biodiversity hotspots and high-biodiversity wilderness areas, and seasonal incidence are discussed for all species.

  8. Revision of the Neotropical bark mantis genus Liturgusa Saussure, 1869 (Insecta, Mantodea, Liturgusini).

    Science.gov (United States)

    Svenson, Gavin J

    2014-01-01

    The praying mantis genus Liturgusa Saussure, 1869 occurs only in Central and South America and represents the most diverse genus of Neotropical Liturgusini (Ehrmann 2002). The genus includes bark dwelling species, which live entirely on the trunks and branches of trees and run extremely fast. All species included within the genus Liturgusa are comprehensively revised with a distribution stretching from central Mexico, the island of Dominica to the southeastern regions of Brazil and southern Bolivia. All known species are redescribed to meet the standards of the new treatment of the genus (11 species). Three new genera are described including Fuga gen. n., Velox gen. n., and Corticomantis gen. n. for species previously included in Liturgusa as well as Hagiomantis. Liturgusa mesopoda Westwood, 1889 is moved to within the previously described genus Hagiomantis Audinet Serville, 1838. A total of 19 species are newly described within Liturgusa, Fuga, and Velox including L. algorei sp. n., L. bororum sp. n., L. cameroni sp. n., L. cura sp. n., L. dominica sp. n., L. fossetti sp. n., L. kirtlandi sp. n., L. krattorum sp. n., L. manausensis sp. n., L. maroni sp. n., L. milleri sp. n., L. neblina sp. n., L. purus sp. n., L. stiewei sp. n., L. tessae sp. n., L. trinidadensis sp. n., L. zoae sp. n., F. grimaldii sp. n., and V. wielandi sp. n. Four species names are synonymized: Liturgusa peruviana Giglio-Tos, 1914, syn. n. = Liturgusa nubeculosa Gerstaecker, 1889 and Hagiomantis parva Piza, 1966, syn. n., Liturgusa sinvalnetoi Piza, 1982, syn. n., and Liturgusa parva Giglio-Tos, 1914, syn. n. = Mantis annulipes Audinet Serville, 1838. Lectotypes are designated for the following two species: Liturgusa maya Saussure & Zehntner, 1894 and Fuga annulipes (Audinet Serville, 1838). A male neotype is designated for Liturgusa guyanensis La Greca, 1939. Males for eight species are described for the first time including Liturgusa cayennensis Saussure, 1869, Liturgusa lichenalis Gerstaecker, 1889, Liturgusa guyanensis La Greca, 1939, Liturgusa maya Saussure & Zehntner, 1894, Liturgusa nubeculosa Gerstaecker, 1889, Fuga annulipes (Audinet Serville, 1838), Corticomantis atricoxata (Beier, 1931), and Hagiomantis mesopoda (Westwood, 1889). The female of Fuga fluminensis (Piza, 1965) is described for the first time. Complete bibliographic histories are provided for previously described species. The spelling confusion surrounding Liturgusa/Liturgousa is resolved. Full habitus images for males and females are provided for nearly all species. Habitus and label images of type specimens are provided when possible. Diagnostic illustrations of the head and pronotum for males and females are provided for all species when possible. Illustrations of male genital structures are provided for all species for which males are known. Measurement data, including ranges and averages, are provided for males and females of all species. Combined male and female genus and species level dichotomous keys are provided with a Spanish translation. A complete table of all examined specimens lists label data, museum codes, repositories, and other specimen specific information. A KML file with all georeferenced locality records is downloadable from mantodearesearch.com for viewing in Google Earth. Natural history information is provided for species observed by the author.

  9. A new species of Dystacta Saussure, 1871 from Nyungwe National Park, Rwanda (Insecta, Mantodea, Dystactinae).

    Science.gov (United States)

    Tedrow, Riley; Nathan, Kabanguka; Richard, Nasasira; Svenson, Gavin J

    2014-01-01

    A recent targeted entomological survey in the Republic of Rwanda has produced two conspecific male and female specimens of an undescribed species of praying mantis (Mantodea). The specimens were collected in Nyungwe National Park in May of 2013. The species is closest morphologically to Dystacta alticeps (Schaum, 1853). Therefore, a new species is described, Dystacta tigrifrutex sp. n., along with the first instar nymphs and ootheca. In addition, the previously monotypic genus Dystacta Saussure, 1871 is re-described to provide a broader definition of the genus group. Habitus images, measurement data, a key to species, natural history information, and locality data are provided.

  10. Mantis indica Mukherjee, 1995: a synonym of Statilia nemoralis (Saussure, 1870 (Insecta: Mantodea

    Directory of Open Access Journals (Sweden)

    P. Chatterjee

    2014-10-01

    Full Text Available Mantis indica (Mukherjee, 1995 was erected on the basis of some distinctive characters. Based on morphological characters, it was supposed to belong to the genus Statilia (Roy (1999: 163. However, in the absence of the knowledge of the structure of genitalia, its species status remained confusing. A further study on the structure of genitalia revealed that Mantis indica (Mukherjee, 1995 is undoubtedly a synonym of Statilia nemoralis (Saussure, 1870. A table is provided to compare significant features of related species. Colour photographs of holotype and genitalia of comparable species are also provided.

  11. A new genus and new species of Philippine stick insects (Insecta: Phasmatodea) and phylogenetic considerations.

    Science.gov (United States)

    Gottardo, Marco

    2011-07-01

    Based on characters of both sexes, a new genus and species of the basal euphasmatodean lineage Aschiphasmatidae is described and figured from the Philippines. Dallaiphasma eximius gen. et sp. n. displays interesting features for the group, including: a cone-shaped vertex, which is notably raised above the pronotum; the tibial area apicalis represented by a depressed membranous posterior lateral region, and a strongly sclerotized central apical region; the euplantulae consisting of smooth-type attachment pads; the pretarsal claws pectination reduced to minute denticulations; and the well-differentiated boundary between the metanotum and the first abdominal tergum. The phylogenetic information content of the new findings is discussed. Furthermore, as a result of this study, the Aschiphasmatidae are newly recorded from Mindoro island, and now include five genera and six species of the Philippines. Copyright © 2011 Académie des sciences. Published by Elsevier SAS. All rights reserved.

  12. Complete mitochondrial genome of Taharana fasciana (Insecta, Hemiptera: Cicadellidae) and comparison with other Cicadellidae insects.

    Science.gov (United States)

    Wang, Jiajia; Li, Hu; Dai, Renhuai

    2017-12-01

    Here, we describe the first complete mitochondrial genome (mitogenome) sequence of the leafhopper Taharana fasciana (Coelidiinae). The mitogenome sequence contains 15,161 bp with an A + T content of 77.9%. It includes 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes, and one non-coding (A + T-rich) region; in addition, a repeat region is also present (GenBank accession no. KY886913). These genes/regions are in the same order as in the inferred insect ancestral mitogenome. All protein-coding genes have ATN as the start codon, and TAA or single T as the stop codons, except the gene ND3, which ends with TAG. Furthermore, we predicted the secondary structures of the rRNAs in T. fasciana. Six domains (domain III is absent in arthropods) and 41 helices were predicted for 16S rRNA, and 12S rRNA comprised three structural domains and 24 helices. Phylogenetic tree analysis confirmed that T. fasciana and other members of the Cicadellidae are clustered into a clade, and it identified the relationships among the subfamilies Deltocephalinae, Coelidiinae, Idiocerinae, Cicadellinae, and Typhlocybinae.

  13. The Complete Mitochondrial Genome of Mindarus keteleerifoliae (Insecta: Hemiptera: Aphididae) and Comparison with Other Aphididae Insects.

    Science.gov (United States)

    Wang, Yuan; Chen, Jing; Jiang, Li-Yun; Qiao, Ge-Xia

    2015-12-17

    The mitogenome of Mindarus keteleerifoliae Zhang (Hemiptera: Aphididae) is a 15,199 bp circular molecule. The gene order and orientation of M. keteleerifoliae is similarly arranged to that of the ancestral insect of other aphid mitogenomes, and, a tRNA isomerism event maybe identified in the mitogenome of M. keteleerifoliae. The tRNA-Trp gene is coded in the J-strand and the same sequence in the N-strand codes for the tRNA-Ser gene. A similar phenomenon was also found in the mitogenome of Eriosoma lanigerum. However, whether tRNA isomers in aphids exist requires further study. Phylogenetic analyses, using all available protein-coding genes, support Mindarinae as the basal position of Aphididae. Two tribes of Aphidinae were recovered with high statistical significance. Characteristics of the M. keteleerifoliae mitogenome revealed distinct mitogenome structures and provided abundant phylogenetic signals, thus advancing our understanding of insect mitogenomic architecture and evolution. But, because only eight complete aphid mitogenomes, including M. keteleerifoliae, were published, future studies with larger taxon sampling sizes are necessary.

  14. Ovipositor setation in oldest insects (Insecta: Archaeognatha) revealed by SEM and He-ion microscopy.

    Science.gov (United States)

    Matushkina, Nataliia A

    2017-10-01

    Archaeognatha represent the oldest living lineage of true insects (=Ectognatha), which are remarkable, among others, for plesiomorphic genital morphology and complicated mating behaviour. I used scanning electron microscopy and He-ion microscopy to examine the ovipositor morphology of seven species, in order to describe the cuticle microsculpture. The species studied are characterised by different types of the ovipositor setation pattern, which are considered an important taxonomic feature for Archaeognatha. The common and well discernible elements of ovipositor setation in Archaeognatha are: (1) non-articulated terminal seta, (2) grooved type I basiconic sensillum with apical pore, (3) multiporous type II basiconic sensillum, (4) articulated setae of different length. Coeloconica-like sensilla and campaniform sensilla demonstrate a variety of transient morphology. Results of this study provide morphological evidence of presence of olfactory receptors on the ovipositor in Archaeognatha. The possible functions of the ovipositor setation in Archaeognatha are discussed. Copyright © 2017 Elsevier Ltd. All rights reserved.

  15. Reticulate evolution in stick insects: the case of Clonopsis (Insecta Phasmida).

    Science.gov (United States)

    Milani, Liliana; Ghiselli, Fabrizio; Pellecchia, Marco; Scali, Valerio; Passamonti, Marco

    2010-08-25

    Phasmids show noteworthy abilities to overcome species-specific reproductive isolation mechanisms, including hybridization, polyploidy, parthenogenesis, hybridogenesis and androgenesis. From an evolutionary standpoint, such tangled reproductive interactions lead to the complex phyletic relationships known as "reticulate evolution". Moroccan stick insects of the genus Clonopsis include one bisexual (C. felicitatis) and two closely related parthenogenetic forms (C. gallica, C. soumiae), which represent a polyploid series in chromosome number, but with apparent diploid karyotypes. Moreover, two Clonopsis strains of ameiotic males have been described, C. androgenes-35 and C. androgenes-53. As a consequence, Clonopsis stick insects may have experienced complex micro-evolutionary events, which we try to disentangle in this study. Mitochondrial cox2 analysis supports a recent divergence of Clonopsis, while AFLPs evidence genetic differentiation not linked to karyotypes, so that parthenogenetic C. gallica and C. soumiae appear to be a mix of strains of polyphyletic origin rather than single parthenogenetic species. Moreover, an admixed hybrid origin seems to be confirmed for C. androgenes. On the whole, Clonopsis is an intriguing case of reticulate evolution. Actually, complex cladogenetic events should be taken into account to explain the observed genetic structure, including diploidization of polyploid karyotypes, possibly coupled with hybridization and androgenesis. We also proposed a "working hypothesis" to account for the observed data, which deserves further studies, but fits the observed data very well.

  16. Cryptic diversity in Australian stick insects (Insecta; Phasmida) uncovered by the DNA barcoding approach.

    Science.gov (United States)

    Velonà, A; Brock, P D; Hasenpusch, J; Mantovani, B

    2015-05-18

    The barcoding approach was applied to analyze 16 Australian morphospecies of the order Phasmida, with the aim to test if it could be suitable as a tool for phasmid species identification and if its discrimination power would allow uncovering of cryptic diversity. Both goals were reached. Eighty-two specimens representing twelve morphospecies (Sipyloidea sp. A, Candovia annulata, Candovia sp. A, Candovia sp. B, Candovia sp. C, Denhama austrocarinata, Xeroderus kirbii, Parapodacanthus hasenpuschorum, Tropidoderus childrenii, Cigarrophasma tessellatum, Acrophylla wuelfingi, Eurycantha calcarata) were correctly recovered as clades through the molecular approach, their sequences forming monophyletic and well-supported clusters. In four instances, Neighbor-Joining tree and barcoding gap analyses supported either a specific (Austrocarausius mercurius, Anchiale briareus) or a subspecific (Anchiale austrotessulata, Extatosoma tiaratum) level of divergence within the analyzed morphospecies. The lack of an appropriate database of homologous coxI sequences prevented more detailed identification of undescribed taxa.

  17. Differences in Mating Propensity Between Immature Female Color Morphs in the Damselfly Ischnura elegans (Insecta : Odonata)

    NARCIS (Netherlands)

    Hammers, Martijn; Ana Sanchez-Guillen, Rosa; Van Gossum, Hans

    Female-limited color polymorphisms occur in a variety of animal taxa where excessive male sexual harassment may explain the coexistence of multiple female color morphs. In the color polymorphic damselfly Ischnura elegans, mature and immature female color morphs coexist at the mating site where males

  18. New and interesting records of Plecoptera (Insecta) from Slovakia and several autecology notes:

    OpenAIRE

    Krno, Il'ja; Žiak, Matej

    2014-01-01

    During the last five years several important discoveries of stoneflies from Slovakia were recorded, including Leuctra dalmoni Vincon & Murányi 2007, a recently described species and Rhabdiopteryx hamulata (Klapálek 1902), an uncommon Balkan species. We also recorded a curious find of the imago of the endangered species, Capnopsis schilleri (Rostock 1892), after 60 years.

  19. Dragonfly (insecta: odonata) diversity in two use of soils in a tropical dry forest

    International Nuclear Information System (INIS)

    Altamiranda S, Mariano

    2009-01-01

    Dragonfly diversity was estimated in the Agricultural Center Cotove (Santafe de Antioquia-Colombia). Active capture using an entomological net was used. Each transect was located perpendicular to the water body, for a length of approximately 200 m and a lateral extension of 8 m. Twenty Odonata species were registered, from 5 families and 15 genus. Libellulidae showed the biggest abundance and richness, with 65 specimens that represent 53.7% of the total abundance, and 12 species that represent 60% of the registered community. The diversity was high in the forest in reference at crop; however, the low abundances register highlight the need for greater sampling effort in cultivating, for a better estimate of ? diversity; the diversity was of 12 species and the complementary index was of 0.6, it indicates that the Odonata's fauna is characteristic and distinctive for each use of soil.

  20. Preparing sternorrhynchous insects (Insecta: Hemiptera: Sternorrhyncha) for microscope examination: Hoyer’s mounting medium

    Science.gov (United States)

    Proper identification of aphids, scale insects, psyllids, and whitefles (Hemiptera: Sternorrhyncha) require preparation of the specimen on a microscope slide. This training video provides visual instruction on how to prepare sternorrhynchous specimens on microscope slides for examination and identi...

  1. Neoelmis guarani Shepard & Barr, a sexually dimorphic new species from Paraguay (Insecta: Coleoptera: Elmidae: Elminae).

    Science.gov (United States)

    Shepard, William D; Barr, Cheryl B

    2016-02-22

    Neoelmis guarani new species is described and illustrated from specimens collected in streams of the Cordillera de los Altos, southeast of Asunción and near the towns of Piribebuy and Chololó, Paraguay. Males and females of this species exhibit strong secondary sexual dimorphism not found in other known species of Neoelmis. Males have striking modifications of the pro- and mesothoracic legs and bear a pair of ventrally projecting processes on both the mesoventrite and the second abdominal ventrite. Females have the elytra modified with a pair of dorsal projections.

  2. Diurnal flight behavior of Ichneumonoidea (Insecta: Hymenoptera) related to environmental factors in a tropical dry forest.

    Science.gov (United States)

    González-Moreno, A; Bordera, S; Leirana-Alcocer, J; Delfín-González, H

    2012-06-01

    The biology and behavior of insects are strongly influenced by environmental conditions such as temperature and precipitation. Because some of these factors present a within day variation, they may be causing variations on insect diurnal flight activity, but scant information exists on the issue. The aim of this work was to describe the patterns on diurnal variation of the abundance of Ichneumonoidea and their relation with relative humidity, temperature, light intensity, and wind speed. The study site was a tropical dry forest at Ría Lagartos Biosphere Reserve, Mexico; where correlations between environmental factors (relative humidity, temperature, light, and wind speed) and abundance of Ichneumonidae and Braconidae (Hymenoptera: Ichneumonoidea) were estimated. The best regression model for explaining abundance variation was selected using the second order Akaike Information Criterion. The optimum values of temperature, humidity, and light for flight activity of both families were also estimated. Ichneumonid and braconid abundances were significantly correlated to relative humidity, temperature, and light intensity; ichneumonid also showed significant correlations to wind speed. The second order Akaike Information Criterion suggests that in tropical dry conditions, relative humidity is more important that temperature for Ichneumonoidea diurnal activity. Ichneumonid wasps selected toward intermediate values of relative humidity, temperature and the lowest wind speeds; while Braconidae selected for low values of relative humidity. For light intensity, braconids presented a positive selection for moderately high values.

  3. Erotylidae (Insecta, Coleoptera of Poland – problematic taxa, updated keys and new records

    Directory of Open Access Journals (Sweden)

    Rafal Ruta

    2011-10-01

    Full Text Available New data concerning the occurrence of pleasing fungus beetles (Coleoptera: Erotylidae in Poland are given, with a focus on rare and difficult to identify Central European taxa. Cryptophilus cf. integer (Heer (Cryptophilinae is reported from the Polish territory for the first time based on adult and larval specimens collected in the Wielkopolska-Kujawy Lowland. Identification problems concerning species of Cryptophilus introduced to Europe are discussed. Triplax carpathica Reitter (Erotylinae is recorded from the Białowieża Primeval Forest, which is the first known non-Carpathian finding of this species, located in the close proximity of the Polish-Belarussian UNESCO World Heritage Site “Białowieża Forest”. Discussion of T. carpathica being conspecific with Siberian T. rufiventris Gebler is provided. New Polish localities of several other Erotylidae are reported, and an updated key to Central European species of Triplax is given. The Triplax key is supplemented with dorsal and ventral habitus images of all treated Triplax species. One of the rarest Central European erotyline species Combocerus glaber (Schaller is recorded from xerothermic grasslands in North-West Poland.

  4. Erotylidae (Insecta, Coleoptera) of Poland - problematic taxa, updated keys and new records.

    Science.gov (United States)

    Ruta, Rafał; Jałoszyński, Paweł; Sienkiewicz, Paweł; Konwerski, Szymon

    2011-01-01

    New data concerning the occurrence of pleasing fungus beetles (Coleoptera: Erotylidae) in Poland are given, with a focus on rare and difficult to identify Central European taxa. Cryptophilus cf. integer (Heer) (Cryptophilinae) is reported from the Polish territory for the first time based on adult and larval specimens collected in the Wielkopolska-Kujawy Lowland. Identification problems concerning species of Cryptophilus introduced to Europe are discussed. Triplax carpathica Reitter (Erotylinae) is recorded from the Białowieża Primeval Forest, which is the first known non-Carpathian finding of this species, located in the close proximity of the Polish-Belarussian UNESCO World Heritage Site "Białowieża Forest". Discussion of Triplax carpathica being conspecific with Siberian Triplax rufiventris Gebler is provided. New Polish localities of several other Erotylidae are reported, and an updated key to Central European species of Triplax is given. The Triplax key is supplemented with dorsal and ventral habitus images of all treated Triplax species. One of the rarest Central European erotyline species Combocerus glaber (Schaller) is recorded from xerothermic grasslands in North-West Poland.

  5. Erotylidae (Insecta, Coleoptera) of Poland – problematic taxa, updated keys and new records

    Science.gov (United States)

    Ruta, Rafał; Jałoszyński, Paweł; Sienkiewicz, Paweł; Konwerski, Szymon

    2011-01-01

    Abstract New data concerning the occurrence of pleasing fungus beetles (Coleoptera: Erotylidae) in Poland are given, with a focus on rare and difficult to identify Central European taxa. Cryptophilus cf. integer (Heer) (Cryptophilinae) is reported from the Polish territory for the first time based on adult and larval specimens collected in the Wielkopolska-Kujawy Lowland. Identification problems concerning species of Cryptophilus introduced to Europe are discussed. Triplax carpathica Reitter (Erotylinae) is recorded from the Białowieża Primeval Forest, which is the first known non-Carpathian finding of this species, located in the close proximity of the Polish-Belarussian UNESCO World Heritage Site “Białowieża Forest”. Discussion of Triplax carpathica being conspecific with Siberian Triplax rufiventris Gebler is provided. New Polish localities of several other Erotylidae are reported, and an updated key to Central European species of Triplax is given. The Triplax key is supplemented with dorsal and ventral habitus images of all treated Triplax species. One of the rarest Central European erotyline species Combocerus glaber (Schaller) is recorded from xerothermic grasslands in North-West Poland. PMID:22140339

  6. Diversity of Hymenoptera (Insecta) on different ages of oil palm in Lekir Plantation, Perak

    Science.gov (United States)

    Azhari, Muhammad Luqman Hakim; Hazmi, Izfa Riza

    2018-04-01

    This study was conducted to determine the diversity of Hymenoptera on the different ages of oil palm namely plot 12, 9 and 5 years old. Sampling was carried out from November 2015 to February 2016 at Ladang Lekir, Perak using Malaise traps and Window trap. A total of 3052 individuals Hymenopteran consisting of 58 morphospecies and 35 subfamilies of 17 families were successfully collected. The most abundant species recorded was the Pimplinae.sp4 with 447 individuals (relative abundance, RA=14.51%). According to the plot, plot 9 years old have the highest reading for all three Peilou Equality Index (E'=0.983), Shannon Diversity Index (H'=3.939) and Simpson Diversity Index (D'=0.9795) with 55 species have been recorded. The t-tests showed that there were no significant difference in term of the diversity index (H') between palm plots 9 years old and 12 years old, while there were significant differences between the two plot (9 years old and 12 years old) with 5 old palm plot. The species accumulation curve showed that only 5 old palm plot nearly asymptotic. This study is expected to help the management to provide basic information for future research and as well, to develop and implement tools, methods, strategies in farm management practices of the oil palm plantations in Malaysia.

  7. Inconsistency in the analysis of morphological deformities in chironomidae (Insecta: Diptera) larvae.

    Science.gov (United States)

    Salmelin, Johanna; Vuori, Kari-Matti; Hämäläinen, Heikki

    2015-08-01

    The incidence of morphological deformities of chironomid larvae as an indicator of sediment toxicity has been studied for decades. However, standards for deformity analysis are lacking. The authors evaluated whether 25 experts diagnosed larval deformities in a similar manner. Based on high-quality digital images, the experts rated 211 menta of Chironomus spp. larvae as normal or deformed. The larvae were from a site with polluted sediments or from a reference site. The authors revealed this to a random half of the experts, and the rest conducted the assessment blind. The authors quantified the interrater agreement by kappa coefficient, tested whether open and blind assessments differed in deformity incidence and in differentiation between the sites, and identified those deformity types rated most consistently or inconsistently. The total deformity incidence varied greatly, from 10.9% to 66.4% among experts. Kappa coefficient across rater pairs averaged 0.52, indicating insufficient agreement. The deformity types rated most consistently were those missing teeth or with extra teeth. The open and blind assessments did not differ, but differentiation between sites was clearest for raters who counted primarily absolute deformities such as missing and extra teeth and excluded apparent mechanical aberrations or deviations in tooth size or symmetry. The highly differing criteria in deformity assignment have likely led to inconsistent results in midge larval deformity studies and indicate an urgent need for standardization of the analysis. © 2015 SETAC.

  8. A revised annotated checklist of the Chironomidae (Insecta: Diptera) of the southeastern United States

    Science.gov (United States)

    Caldwell, Broughton A.; Hudson, Patrick L.; Lenat, David R.; Smith, David

    1997-01-01

    A revised annotated checklist for the chironomid midges (Diptera: Chironomidae) of the southeastern United States is presented that includes the states of Alabama, Florida, Georgia, North Carolina, South Carolina, and Tennessee. Much of the information concerns occurrence and habitat preference records based upon the authors' data, as well as published and unpublished data. Some information is also presented that includes aspects of biology, habitat preference, bibliographic sources, and nomenclatorial changes. Based upon the present work, the chironomid fauna of the southeastern states is comprised of 189 genera (172 described, 17 informally or unofficially described) and 754 species (505 described, 17 informally or unofficially described, 33 that are assumed for generic or subgeneric presence only, 197 estimated species, and 2 species groups). Several new species synonyms and generic placements are recognized. Thirty-eight genera known from the Nearctic region remain unknown from the southeastern states. Diversity of species was greatest in the subfamily Chironominae, considering named as well as unnamed and estimated species. There were no significant changes in overall regional distribution patterns of subfamilies or habitat preferences form that which has been previously reported. The greatest totals for regional records, habitat types, and state occurrences were the Coastal Plain (378), streams (271), and North Carolina (373), respectively.

  9. Madicolous Chironomidae from the Brazilian Atlantic Forest: a checklist with notes on altitudinal distributions (Diptera, Insecta)

    Science.gov (United States)

    Shimabukuro, Erika Mayumi; Trivinho-Strixino, Susana

    2018-01-01

    Abstract Thin layers of water running over rocky surfaces are characteristic of madicolous habitats, which harbor a peculiar Chironomidae community. However, information on the identity, distribution, and ecology of madicolous chironomids in the Neotropical region are still sparse. The main purpose of this research is to reveal and contribute to the ecology of madicolous Chironomidae species, especially regarding their altitudinal distribution in the Atlantic Forest. Sampling was performed using our own designed emergence traps deployed from 0 to 2700 m a.s.l. in 70 sites in three mountains in southeastern Brazil. Sixty taxa of chironomids were collected and identified, of which only 22 are known to science. Most of the species showed a wider distribution than previously known, both in terms of geographic and altitudinal ranges, while others showed significant association with particular altitudinal bands (as evidenced by the indicator species analysis). Atlantic Forest mountainous regions are known to harbor one of the richest fauna in the world and have been suffering from several types of environmental impacts, including climate change, which will especially affect taxa living in specialized habitats. The narrow range of tolerance to environmental conditions verified for mountain species, and the fact that many of them are rare and endemic, make the conservation efforts in these areas indispensable. PMID:29706784

  10. A DNA Barcode Library for Korean Chironomidae (Insecta: Diptera) and Indexes for Defining Barcode Gap

    Science.gov (United States)

    Kim, Sungmin; Song, Kyo-Hong; Ree, Han-Il; Kim, Won

    2012-01-01

    Non-biting midges (Diptera: Chironomidae) are a diverse population that commonly causes respiratory allergies in humans. Chironomid larvae can be used to indicate freshwater pollution, but accurate identification on the basis of morphological characteristics is difficult. In this study, we constructed a mitochondrial cytochrome c oxidase subunit I (COI)-based DNA barcode library for Korean chironomids. This library consists of 211 specimens from 49 species, including adults and unidentified larvae. The interspecies and intraspecies COI sequence variations were analyzed. Sophisticated indexes were developed in order to properly evaluate indistinct barcode gaps that are created by insufficient sampling on both the interspecies and intraspecies levels and by variable mutation rates across taxa. In a variety of insect datasets, these indexes were useful for re-evaluating large barcode datasets and for defining COI barcode gaps. The COI-based DNA barcode library will provide a rapid and reliable tool for the molecular identification of Korean chironomid species. Furthermore, this reverse-taxonomic approach will be improved by the continuous addition of other speceis’ sequences to the library. PMID:22138764

  11. Tabla de vida y parámetros poblacionales de Lacertinella australis (Insecta-Hemiptera-Fulgoromorpha

    Directory of Open Access Journals (Sweden)

    Maria F. ROSSI BATIZ

    2016-01-01

    Full Text Available Lacertinella australis ha sido capturada en 11 provincias de la Argentina y fue mencionada como una especie de interés fitosanitario por su potencial para vehiculizar fitopatógenos. Atendiendo al amplio rango de distribución, su potencial importancia fitosanitaria y el carácter invasivo de su principal planta hospedera, Cor - taderia spp., se evaluaron aspectos del ciclo de vida a través de una tabla de vida vertical bajo condiciones controladas en el laboratorio y se confeccionó una segunda tabla de vida sobre la base de un muestreo de una población natural. Se estimaron los atributos poblacionales: tasa reproductiva básica o tasa de reemplazo ( R 0 , tasa finita de crecimiento poblacional ( λ , capacidad de incremento poblacional ( r c , valor reproductivo ( V x , tiempo generacional de la cohorte ( T c y el promedio del tiempo de desarrollo por estadios. Se mencionan y comparan aspectos comportamentales y de la bionomía de L. australis compartidos con las dos especies de la tribu cuya biología se conoce: Saccharosydne procerus y Saccharosydne saccharivora.

  12. Prolamin proteins alteration in durum wheat by species of the genus Eurygaster and Aelia (Insecta, Hemiptera)

    Energy Technology Data Exchange (ETDEWEB)

    Salis, L.; Goula, M.; Valero, J.; Gordun, E.

    2010-07-01

    Wheat bugs are widely distributed in various areas of Europe, Asia and North Africa. Species belonging to the genus Eurygaster and Aelia pierce wheat kernels affecting protein quality. The effects of these insects feeding activity have been studied mainly in bread wheat (Triticum aestivum L.). This study provides information on the degradation of prolamin proteins (glutenins and gliadins) of bug-damaged durum wheat (Triticum turgidum L. var durum) in six cultivars grown in Sardinia (Italy). Samples of whole flour mixture of 70% sound wheat and 30% damaged wheat were hydrated and incubated at two temperatures (45 and 4 degree centigrade), for different periods of time (0, 1 and 3 h). Glutenin and gliadin content was analysed using free zone capillary electrophoresis. The presence of bug-damaged kernels had influence on the quality of durum wheat proteins. Glutenins were rapidly degraded independently to incubation temperature. Gliadin degradation, however, took place with dependence on temperature and incubation time. Therefore glutenin degradation was possibly not due solely to the activity of proteolytic enzymes but also to some other as yet unknown factor linked to wheat bugs feeding activity. (Author) 35 refs.

  13. The Hemiptera (Insecta) of Canada: Constructing a Reference Library of DNA Barcodes

    Science.gov (United States)

    Gwiazdowski, Rodger A.; Foottit, Robert G.; Maw, H. Eric L.; Hebert, Paul D. N.

    2015-01-01

    DNA barcode reference libraries linked to voucher specimens create new opportunities for high-throughput identification and taxonomic re-evaluations. This study provides a DNA barcode library for about 45% of the recognized species of Canadian Hemiptera, and the publically available R workflow used for its generation. The current library is based on the analysis of 20,851 specimens including 1849 species belonging to 628 genera and 64 families. These individuals were assigned to 1867 Barcode Index Numbers (BINs), sequence clusters that often coincide with species recognized through prior taxonomy. Museum collections were a key source for identified specimens, but we also employed high-throughput collection methods that generated large numbers of unidentified specimens. Many of these specimens represented novel BINs that were subsequently identified by taxonomists, adding barcode coverage for additional species. Our analyses based on both approaches includes 94 species not listed in the most recent Canadian checklist, representing a potential 3% increase in the fauna. We discuss the development of our workflow in the context of prior DNA barcode library construction projects, emphasizing the importance of delineating a set of reference specimens to aid investigations in cases of nomenclatural and DNA barcode discordance. The identification for each specimen in the reference set can be annotated on the Barcode of Life Data System (BOLD), allowing experts to highlight questionable identifications; annotations can be added by any registered user of BOLD, and instructions for this are provided. PMID:25923328

  14. Effect of oil palm on the Plecoptera and Trichoptera (Insecta) assemblages in streams of eastern Amazon.

    Science.gov (United States)

    de Paiva, Carina Kaory Sasahara; de Faria, Ana Paula Justino; Calvão, Lenize Batista; Juen, Leandro

    2017-08-01

    The production of oil palm is expected to increase in the Amazon region. However, expansion of oil palm plantation leads to significant changes in the physical structure of aquatic ecosystems, mainly through the reduction of riparian vegetation that is essential for aquatic biodiversity. Here, we evaluated the effects of oil palm on the physical habitat structure of Amazonian stream environments and assemblages of Plecoptera and Trichoptera (PT), ​both found in these streams. We compared streams sampled in oil palm plantations (n = 13) with natural forest areas ("reference" streams, n = 8), located in the eastern Amazon, Brazil. Our results showed that oil palm streams were more likely to be in close proximity to roads, had higher pH values, and higher amounts of fine substrate deposited in the channel than reference streams. Further, these environmental changes had important effects on the aquatic invertebrate assemblages, reducing the abundance and richness of PT. Nevertheless, the genera composition of the assemblages did not differ between reference and oil palm (PERMANOVA, pseudo-F (1,19)  = 1.891; p = 0.111). We conclude that oil palm production has clear negative impacts on aquatic environments and PT assemblages in Amazonian streams. We recommend that oil palm producers invest more in planning of road networks to avoid the construction of roads near to the riparian vegetation. This planning can minimize impacts of oil palm production on aquatic systems in the Amazon.

  15. a new record of zoraptera (insecta) from kenya, with remarks on their

    African Journals Online (AJOL)

    ... Kenyan species has rather fine, short, and comparatively simple metafemoral spines ... The structure found in the current species might be related to this type of .... D.K. Yeates, K. Yoshizawa, Q. Zhang, R. Zhang, W. Zhang, Y. Zhang, J. Zhao,.

  16. Occurrence of Temnocephala (Platyhelminthes: Temnocephalida in Immatures of Kempnyia reticulata (Enderlein (Insecta: Plecoptera: Perlidae

    Directory of Open Access Journals (Sweden)

    Fernanda Avelino-Capistrano

    2013-04-01

    Full Text Available First register of Temnocephala (Platyhelminthes: Temnocephalida in immature of Kempnyia reticulata (Enderlein (Plecoptera: Perlidae. The insects were collected in rivers of Estação Biológica de Santa Lúcia, Santa Teresa, Espirito Santo, Brazil.

  17. The first two mitochondrial genomes from Taeniopterygidae (Insecta: Plecoptera): Structural features and phylogenetic implications.

    Science.gov (United States)

    Chen, Zhi-Teng; Du, Yu-Zhou

    2018-05-01

    The complete mitochondrial genomes (mitogenomes) of Taeniopteryx ugola and Doddsia occidentalis (Plecoptera: Taeniopterygidae) were firstly sequenced from the family Taeniopterygidae. The 15,353-bp long mitogenome of T. ugola and the 16,020-bp long mitogenome of D. occidentalis each contained 37 genes including 13 protein-coding genes (PCGs), 22 transfer RNA genes (tRNAs), two ribosomal RNA genes (rRNAs) and a control region (CR). The mitochondrial gene arrangement of the two taeniopterygids and other stoneflies was identical with the putative ancestral mitogenome of Drosophila yakuba. Most PCGs used standard ATN start codons and TAN termination codons. Twenty-one of the 22 tRNAs in each mitogenome could fold into the cloverleaf secondary structures, while the dihydrouridine (DHU) arm of trnSer (AGN) was reduced or absent. Stem-loop (SL) structures, poly-T stretch, poly-[AT] n stretch and tandem repeats were found in the CRs of the two mitogenomes. The phylogenetic analyses using Bayesian inference (BI) and maximum likelihood methods (ML) generated identical results, both supporting the monophyly of all stonefly families and the two infraorders, Systellognatha and Euholognatha. Taeniopterygidae was grouped with another two families from Euholognatha. The relationships within Plecoptera were recovered as (((Perlidae+Peltoperlidae)+((Pteronarcyidae+Chloroperlidae)+Styloperlidae))+((Capniidae+Taeniopterygidae)+Nemouridae))+Gripopterygidae. Copyright © 2017 Elsevier B.V. All rights reserved.

  18. The first fossil salmonfly (Insecta: Plecoptera: Pteronarcyidae), back to the Middle Jurassic.

    Science.gov (United States)

    Cui, Yingying; Béthoux, Olivier; Kondratieff, Boris; Shih, Chungkun; Ren, Dong

    2016-10-18

    The fossil record of Plecoptera (stoneflies) is considered relatively complete, with stem-groups of each of the three major lineages, viz. Antarctoperlaria, Euholognatha and Systellognatha (and some of their families) represented in the Mesozoic. However, the family Pteronarcyidae (the salmonflies; including two genera, Pteronarcys and Pteronarcella) has no fossil record to date, and the family has been suggested to have diverged recently. In this paper, we report on a set of specimens belonging to a new fossil species of stonefly, discovered from the Middle Jurassic Daohugou locality (China). Our comparative analysis of wing venation and body characters demonstrates that the new species belongs to the Pteronarcyidae, and is more closely related to Pteronarcys than to Pteronarcella. However, it differs from all known species of the former genus. It is therefore assigned to a new genus and named Pteroliriope sinitshenkovae gen. et sp. nov. under the traditional nomenclatural procedure. The cladotypic nomenclatural procedure is also employed, with the resulting combination Pteroliriope nec Pteronarcys sinitshenkovae sp. nov. The first discovery of a fossil member of the Pteronarcyidae demonstrates that the corresponding lineage is not a very recent offshoot but was already present ca. 165 million years ago. This discovery concurs with the view that divergence of most stonefly families took place very early, probably in the Triassic, or even in the Permian. This contribution demonstrates the need for (re-)investigations of the systematics of fossil stoneflies to refine divergence date estimates for Plecoptera lineages.

  19. Baltileuctra gen. nov., a new genus of Leuctridae (Insecta: Plecoptera) in Baltic amber.

    Science.gov (United States)

    Chen, Zhi-Teng

    2018-04-10

    A new genus and species of the stonefly family Leuctridae, Baltileuctra foraminis gen. et sp. nov., is described and illustrated based on a well-preserved male specimen from the Eocene Baltic amber. The new genus possesses typical characters of Leuctridae but has diagnostic characters of the thoracic sclerites and terminalia. The relationship between the new genus and other leuctrids is briefly discussed.

  20. Two new species of the stonefly genus Amphinemura (Insecta, Plecoptera, Nemouridae) from China.

    Science.gov (United States)

    Ji, Xiao-Yu; Du, Yu-Zhou; Wang, Zhi-Jie

    2014-01-01

    Two new species of the genus Amphinemura Ris from China are described and illustrated, i.e. A. annulata Du & Ji, sp. n. from Zhejiang, Shanxi, Shaanxi and Guizhou Province, and A. lingulata Du & Wang, sp. n. from Shaanxi and Sichuan Province. A. annulata is similar to A. tricintusidens Wang & Zhu in having an apical cavity of the epiproct, but the epiproct ventral sclerite and the median paraproct lobe of the two species are different. A. lingulata is related to A. didyma Zhu & Yang in having the similar epiproct, but they differ mostly in paraproct median and outer lobes.

  1. An illustrated key to nymphs of Perlidae (Insecta, Plecoptera genera in Central Amazonia, Brazil

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    Hamada Neusa

    2003-01-01

    Full Text Available An illustrated key to nymphs of Perlidae collected in streams of Central Amazonia, Brazil is provided. Three genera are reported for this region: Macrogynoplax Enderlein, Anacroneuria Klapálek and Enderleina Jewett. Additional diagnostic characters are provided for Enderleina nymphs.

  2. Two new species of genus Rhopalopsole (Insecta, Plecoptera, Leuctridae from China

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    Qian Yuhan

    2011-12-01

    Full Text Available Two new species of Rhopalopsole Klapálek from China are described: R. exiguspina Du & Qian, sp. n. and R. ampulla Du & Qian, sp. n., which were collected in Guizhou province, China.

  3. Two new species of genus Rhopalopsole (Insecta, Plecoptera, Leuctridae) from China

    Science.gov (United States)

    Yu-Han, Qian; Yu-Zhou, Du

    2011-01-01

    Abstract Two new species of Rhopalopsole Klapálek from China are described: Rhopalopsole exiguspina Du & Qian, sp. n. and Rhopalopsole ampulla Du & Qian, sp. n., which were collected in Guizhou province, China. PMID:22287913

  4. Checklist de Plecoptera (Insecta do Estado do Mato Grosso do Sul, Brasil

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    Lucas Silveira Lecci

    Full Text Available Resumo Apresentamos aqui uma lista das espécies da ordem Plecoptera encontradas no Estado do Mato Grosso do Sul baseados na literatura até março de 2015. Foram registrados uma família (Perlidae, um gênero ( Anacroneuria e 10 espécies.

  5. New species of the genus Cheumatopsyche Wallengren 1891 (Insecta: Trichoptera: Hydropsychidae) from Indian Himalaya.

    Science.gov (United States)

    Pandher, Manpreet Singh; Malicky, Hans; Parey, Sajad H

    2018-02-15

    Three new species belonging to genus Cheumatopsyche Wallengren are described and illustrated. The newly described species are Cheumatopsyche nigrocephala sp. nov. and Ch. similis sp. nov. both from Uttarakhand, and Ch. meghalayaensis sp. nov. from Meghalaya. Cheumatopsyche guadunica Li Dudgeon 1988 is reported for the first time from India. Cheumatopsyche ningmapa Schmid 1975 and Ch. galahittigama Schmid 1958 are also redescribed and reillustrated based on Indian specimens (males only). Due to insufficient description five species described by the Navás are considered to be nomina dubia (Cheumatopsyche chlorogastra (Navás 1932), Ch. indica (Navás 1932), Ch. lebasi (Navás 1932), Ch. stenocyta (Navás 1932), Ch. suffusa (Navás 1932). Previously, this genus was represented by 23 species and, with the addition of 3 new species and one new country record, there are now 27 species known from India.

  6. The ovipositor apparatus of basal Hymenoptera (Insecta): phylogenetic implications and functional morphology

    DEFF Research Database (Denmark)

    Vilhelmsen, Lars

    2000-01-01

      The skeleto-musculature of the ovipositor apparatus and the external sculpture of the 1st and 2nd valvulae was studied in representatives from all ‘symphytan' families. Nineteen informative characters were coded and scored. The distribution of character states are discussed with reference to re...

  7. Critical Structure for Telescopic Movement of Honey bee (Insecta: Apidae) Abdomen: Folded Intersegmental Membrane.

    Science.gov (United States)

    Zhao, Jieliang; Yan, Shaoze; Wu, Jianing

    2016-01-01

    The folded intersegmental membrane is a structure that interconnects two adjacent abdominal segments; this structure is distributed in the segments of the honey bee abdomen. The morphology of the folded intersegmental membrane has already been documented. However, the ultrastructure of the intersegmental membrane and its assistive role in the telescopic movements of the honey bee abdomen are poorly understood. To explore the morphology and ultrastructure of the folded intersegmental membrane in the honey bee abdomen, frozen sections were analyzed under a scanning electron microscope. The intersegmental membrane between two adjacent terga has a Z-S configuration that greatly influences the daily physical activities of the honey bee abdomen. The dorsal intersegmental membrane is 2 times thicker than the ventral one, leading to asymmetric abdominal motion. Honey bee abdominal movements were recorded using a high-speed camera and through phase-contrast computed tomography. These movements conformed to the structural features of the folded intersegmental membrane. © The Authors 2016. Published by Oxford University Press on behalf of Entomological Society of America.

  8. The complete mitochondrial genome of the invasive Africanized Honey Bee, Apis mellifera scutellata (Insecta: Hymenoptera: Apidae).

    Science.gov (United States)

    Gibson, Joshua D; Hunt, Greg J

    2016-01-01

    The complete mitochondrial genome from an Africanized honey bee population (AHB, derived from Apis mellifera scutellata) was assembled and analyzed. The mitogenome is 16,411 bp long and contains the same gene repertoire and gene order as the European honey bee (13 protein coding genes, 22 tRNA genes and 2 rRNA genes). ND4 appears to use an alternate start codon and the long rRNA gene is 48 bp shorter in AHB due to a deletion in a terminal AT dinucleotide repeat. The dihydrouracil arm is missing from tRNA-Ser (AGN) and tRNA-Glu is missing the TV loop. The A + T content is comparable to the European honey bee (84.7%), which increases to 95% for the 3rd position in the protein coding genes.

  9. THRIPS SPECIES (INSECTA: THYSANOPTERA OF ORNAMENTAL PLANTS FROM THE PARKS AND GREENHOUSES OF ADP PITESTI

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    Daniela Bărbuceanu

    2012-04-01

    Full Text Available The observations carried-out in 2008/2010 to ornamental plants from parks and greenhouses of ADP Pitesti relieve 12 species of thrips. One species of them, Frankliniella occidentalis was identified in greenhouses on Rosa sp., Dianthus sp. and Zantedeschia sp. In parks, the thrips species belong to 12 species, dominated by Frankliniella intonsa. All of them are polypfagous and divided in two throphic levels: primary and secondary consumers. The thrips species are mentioned for the first time in Romania on this host plant. In greenhouses are necessary intensive chemical treatments and methods of cultural hygiene to limit the F. occidentalis populations.

  10. Familial Clarification of Saucrosmylidae stat. nov. and New Saucrosmylids from Daohugou, China (Insecta, Neuroptera.

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    Hui Fang

    Full Text Available Saucrosmylids are characterized by the typically large body size, complicated venation and diverse wing markings, which were only discovered in Middle Jurassic of Daohugou, Ningcheng county, Inner Mongolia, China.Saucrosmylinae Ren, 2003, originally included as a subfamily in the Osmylidae, was transferred and elevated to family rank based on the definitive synapomorphic character. The updated definition of Saucrosmylidae stat. nov. was outlined in detail: presence of nygma and trichosors; diverse markings on membrane; complicated cross-veins; distal fusion of Sc and R1; expanded space between R1 and Rs having 2-7 rows of cells that should be a synapomorphic character of the family; proximal MP fork. And the previous misuses of Saucrosmylidae are also clarified. Furthermore, a new genus with a new species and an indeterminate species of Saucrosmylidae are described as Ulrikezza aspoeckae gen. et sp. nov. and Ulrikezza sp. from the Middle Jurassic of Daohugou, Inner Mongolia, China. A key to genera of Saucrosmylidae is provided.The intriguing group represents a particular lineage of Neuroptera in the Mesozoic Era. The familial status of Saucrosmylidae was firstly advanced that clarified the former incorrect citation and use of the family name. As an extinct clade, many species of the saucrosmylids were erected just based on a single fore- or hindwing, and it should be realized that providing more stable characters is necessary when describing new lacewing taxa just based on an isolated hindwing. It is vital for the systematics of Saucrosmylidae.

  11. Diversity and distribution of Chironomidae (Insecta: Diptera of protected areas in North Tunisia

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    Boulaaba S.

    2014-01-01

    Full Text Available In North Africa seasonal streams called wadi are an unique habitats with serve hydrological and thermal regime. Non-biting midges take an important part of freshwater biodiversity in North Africa. We present new data on the distribution and diversity of Chironomidae in North Tunisia. Larvae, pupal exuviae and adult males of chironomids were collected from a various freshwater ecosystems from May 2005 till April 2006. The aim of this study was to recognize the pattern of midge diversity in North Tunisia to estimate ecological value of running waters in the region. In total, 79 taxa were identified. Nearly all of the taxa were typical representatives of the Palaearctic and Mediterranean complexes. The majority of the investigated sites belonged to the protected areas in North Tunisia, such as the Ichkeul National Park, the Kroumerie Mountains and the El Feija National Park, part of the Intercontinental Reserve of the Mediterranean Biosphere. Altitudinal zonation of the communities composition was found in the lowland (250 m a.s.l. with maximum of 760 m. Whereas among the data 39 species are recorded from Tunisia for the first time, the species richness of Chironomidae is higher than previously estimated.

  12. Exposure to exogenous enkephalins disrupts reproductive development in the Eastern lubber grasshopper, Romalea microptera (Insecta: Orthoptera.

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    Sandeep Kumar

    Full Text Available Enkephalins play a major role in reproductive physiology in crustaceans; however their role in reproductive development in insects is largely unknown. We investigated the effect of exposure to exogenous leucine-enkephalin (Leu-Enk, methionine-enkephalin (Met-Enk, and the opioid antagonist naloxone on gonad development in the Eastern lubber grasshopper, Romalea microptera. Injection of either Leu-Enk or naloxone alone significantly increased the testicular index and testicular follicular diameter in males, and the ovarian index, oocyte length, and oocyte diameter in females. In contrast, injection of Met-Enk inhibited all measures of reproductive development in both sexes. Surprisingly, co-injection of naloxone with either enkephalin enhanced the effect associated with administration of the enkephalin alone. This study clearly demonstrates the ability of enkephalins to disrupt insect sexual development and also suggests the existence of conserved enkephaline-dependent regulatory mechanisms in insects and crustaceans.

  13. [Generic diversity of Trichoptera (Insecta) of Paramo Rabanal (Cundinamarca-Boyacá, Colombia)].

    Science.gov (United States)

    Latorre-Beltrán, Ivonne T; Novelo-Gutiérrez, Rodolfo; Favila, Mario E

    2014-04-01

    Trichopterans are considered an important and diverse biotic element in continental aquatic ecosystems. The purpose of this study was to evaluate the assemblages of the order Trichoptera in two subwatersheds with a gradient of disturbance. Four sampling events were conducted in two subwatersheds in the Eastern Mountain Range of the Colombian Andes. For the analysis we used rarefaction curves, Bray-Curtis Index and Partitioning Diversity and total richness and Shannon's diversity as metrics. Although total richness was similar between both subwatersheds, abundance was always highest in streams within the conserved subwatershed. Each subwatershed was dominated by different genera, except Ochrotrichia, which was abundant at all sites. Alpha diversity was similar among streams in the conserved watershed, while a reduction in diversity potentially associated with the disturbance gradient was observed in streams of the disturbed subwatershed. Beta diversity (0Dbeta and 1Dbeta) between subwatersheds and among conserved streams was similar, while in disturbed streams a similar gradient to that of alpha diversity was found. The similitude analysis clustered streams according to their conservation status. Differences found in trichopteran assemblages do confirm that the use of their attributes is adequate to assess the conservation status of stream ecosystems. Rev. Biol. Trop. 62 (Suppl. 2): 97-110. Epub 2014 April 01.

  14. Morphology and Histology of the Female Reproductive System of Abedus ovatus Stal (Belostomatidae: Hemiptera: Insecta

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    Lalitha TG

    1997-01-01

    Full Text Available In Abedus ovatus Stal, the female reproductive system consists of a pair of ovaries leading to oviduct and opens out by genital aperture. Each ovary is composed of five telotrophic ovarioles, with four different regions, terminal filament, germarium, vitellarium and pedicel. Germarium and vitellarium are the germ tubes in which the development of oocyte occurs. In the germarium, the differentiation of trophocytes into young oocytes was observed in three zones, ZI, ZII and ZIII. Further development of oocytes in the vitellarium could be divided into seven stages, STI STVII. The developed eggs are lodged in the pedicel

  15. Evidence for gene flow between two sympatric mealybug species (Insecta; Coccoidea; Pseudococcidae.

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    Hofit Kol-Maimon

    Full Text Available Occurrence of inter-species hybrids in natural populations might be evidence of gene flow between species. In the present study we found evidence of gene flow between two sympatric, genetically related scale insect species--the citrus mealybug Planococcus citri (Risso and the vine mealybug Planococcus ficus (Signoret. These species can be distinguished by morphological, behavioral, and molecular traits. We employed the sex pheromones of the two respective species to study their different patterns of male attraction. We also used nuclear ITS2 (internal transcribed spacer 2 and mitochondrial COI (Cytochrome c oxidase sub unit 1 DNA sequences to characterize populations of the two species, in order to demonstrate the outcome of a possible gene flow between feral populations of the two species. Our results showed attraction to P. ficus pheromones of all tested populations of P. citri males but not vice versa. Furthermore, ITS2 sequences revealed the presence of 'hybrid females' among P. citri populations but not among those of P. ficus. 'hybrid females' from P. citri populations identified as P. citri females according to COI sequences. We offer two hypotheses for these results. 1 The occurrence of phenotypic and genotypic traits of P. ficus in P. citri populations may be attributed to both ancient and contemporary gene flow between their populations; and 2 we cannot rule out that an ancient sympatric speciation by which P. ficus emerged from P. citri might have led to the present situation of shared traits between these species. In light of these findings we also discuss the origin of the studied species and the importance of the pherotype phenomenon as a tool with which to study genetic relationships between congener scale insects.

  16. Prolamin proteins alteration in durum wheat by species of the genus Eurygaster and Aelia (Insecta, Hemiptera)

    International Nuclear Information System (INIS)

    Salis, L.; Goula, M.; Valero, J.; Gordun, E.

    2010-01-01

    Wheat bugs are widely distributed in various areas of Europe, Asia and North Africa. Species belonging to the genus Eurygaster and Aelia pierce wheat kernels affecting protein quality. The effects of these insects feeding activity have been studied mainly in bread wheat (Triticum aestivum L.). This study provides information on the degradation of prolamin proteins (glutenins and gliadins) of bug-damaged durum wheat (Triticum turgidum L. var durum) in six cultivars grown in Sardinia (Italy). Samples of whole flour mixture of 70% sound wheat and 30% damaged wheat were hydrated and incubated at two temperatures (45 and 4 degree centigrade), for different periods of time (0, 1 and 3 h). Glutenin and gliadin content was analysed using free zone capillary electrophoresis. The presence of bug-damaged kernels had influence on the quality of durum wheat proteins. Glutenins were rapidly degraded independently to incubation temperature. Gliadin degradation, however, took place with dependence on temperature and incubation time. Therefore glutenin degradation was possibly not due solely to the activity of proteolytic enzymes but also to some other as yet unknown factor linked to wheat bugs feeding activity. (Author) 35 refs.

  17. Introduced and invasive insect species in the Czech Republic and their economic and ecological impact (Insecta

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    Hana Šefrová

    2005-01-01

    Full Text Available A total of 383 alien insect species were registered in the Czech Republic, which represents 1.4% of local fauna. The most numerous taxonomic groups are Homoptera (116 species, 30.3%, Coleoptera (110; 28.7% and Lepidoptera (37; 9.7%. The occurrence of 200 species (52.2% are limited to closed heated spaces, casual aliens (28; 7.3% infiltrate the outdoor environment for a short term only, 36 (9.4% naturalized non-invasive species do not spread from the location of introduction, 50 (13.1% species are post-invasive and 69 (18.0% invasive. From the species registered, 61 (15.9% are stored product pests (especially Coleoptera 36 species, Psocoptera 11, and Lepidoptera 9, 50 (13.1% are plant pests indoors (especially Coccinea 33 species, Aphidinea 7, and Thysanoptera 6, 25 (i.e. 6.5% of aliens are pests in agriculture, forestry, and in ornamental cultures, 15 species (3.9% are important animal parasites, and 5 species (1.3% can affect biodiversity. Of the remaining 227 species (59.3%, no economic or ecological effects were found. The origin of most of the species living eusynanthropically is in the tropics and subtropics; of the 155 naturalized (non-invasive, post-invasive, and invasive species, 42 (27.1% originate from the Mediterranean, 36 (23.2% from North America, 28 (18.1% from Central to Southwest Asia, 14 (9.0% from East Asia, 13 (8.4% from South and Southeast Asia, with the remaining 22 species (14.2% coming from other areas.

  18. First record of a Neozygites species (Zygomycetes:Entomophthorales) infecting springtails (Insecta:Collembola)

    DEFF Research Database (Denmark)

    Steenberg, T.; Eilenberg, J.; Bresciani, J.

    1996-01-01

    A fungal pathogen from the Entomophthorales (Zygomycetes) was discovered in populations of the lucerne flea Sminthurus viridis (Collembola) collected from grassland and leguminous crops in Denmark during July to October. The morphology of the fungus was studied in springtails, collected live, whi...... Conidiobolus coronatus. Verticillium lecanii and Beauveria bassiana (Deuteromycotina:Hyphomycetes) were also isolated from S. viridis....

  19. Morphological Diversity of Coleoptera (Arthropoda: Insecta in Agriculture and Forest Systems

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    Pâmela Niederauer Pompeo

    2017-11-01

    Full Text Available ABSTRACT Coleopterans (Coleoptera are major ecosystem service providers. However ecomorphological features that are comparable in a wide range of invertebrates within this group and in various environments must be found, to be able to study regions with different species, contributing to overcome difficulties of the taxonomic approach and understand the functioning of ecosystems. This research addressed the diversity of Coleoptera, using a methodology of ecomorphological traits, as well as their relation with the land use systems (LUS and the soil properties. The following LUS were evaluated: no-tillage (NT, crop-livestock integration (CLI, pasture (PA, Eucalyptus stands (EST, and native forest (NF. Samples were collected using a 3 × 3 point grid (sampling points at a distance of 30 m, in winter and summer, in three municipalities on the Southern Santa Catarina Plateau, Brazil. Coleopterans were collected using the methodology recommended by the Tropical Soil Biology and Fertility Program, based on the excavation of soil monoliths, and on pitfall traps. To evaluate the biological forms (morphotypes and ecomorphological groups, the ecomorphological index (EMI methodology was adopted and the modified soil biological quality (SBQ index was determined. At the same points, samples were collected to evaluate environmental variables (soil physical, chemical, and microbiological properties. Density data underwent nonparametric univariate statistical analysis and multivariate abundance to verify the distribution of coleopterans in the LUS, and the environmental variables were considered as explanatory. Regardless of the LUS, 14 morphotypes were identified, and adult coleopterans with epigean morphologic adaptations were more abundant than hemi-edaphic and edaphic coleopterans, respectively. Morphotype diversity was higher in the systems NF, EST, and PA in summer and in NT in winter. The reductions in SBQ index were not associated with a gradient of land use intensification (NF> EST> PA> CLI> NT, and the index was higher for NF and lower for EST. Principal component analysis (PCA indicated a different distribution of invertebrates between the LUS. For the edaphic species, better adapted to life in the soil, a relation with NT and CLI was observed, due to more favorable pH values and phosphorus content. In the NF, a greater amount of morphotypes was identified, and the properties related to soil carbon dynamics contributed to explain this distribution. Separation at the morphotype level, taking adaptation level to soil life into consideration, has proved efficient to discriminate the LUS, mainly along with other explanatory environmental variables.

  20. The Palaearctic types of Chrysididae (Insecta, Hymenoptera) deposited in the Hungarian Natural History Museum, Budapest.

    Science.gov (United States)

    Rosa, Paolo; Vas, Zoltán; Xu, Zai-Fu

    2017-04-11

    A critical and annotated catalogue of the Palaearctic types of chrysidid species, subspecies and varieties deposited in the Magyar Természettudományi Múzeum is given. The lectotype of Hedychrum luculentum Förster, 1853 and the neotype of Chrysis amasina Mocsáry, 1889 are designated. Six new synonyms are proposed: Chrysis varicornis Spinola, 1838 = Chrysis cyanocoelia Mocsáry, 1889, syn. nov.; Hedychridium adventicium Zimmermann, 1962 = Hedychridium jazygicum Móczár, 1964, syn. nov.; Hedychrum cribratum Mocsáry, 1909 = Hedychrum punctigerum Mocsáry, 1909, syn. nov.; Holopyga generosa (Förster, 1853) = Holopyga hortobagyensis Móczár, 1984, syn. nov.; Holopyga turkestanica Mocsáry, 1909 = Holopyga crassepuncta Semenov, 1954, syn. nov.; and Pseudomalus cupratus (Mocsáry, 1889) = Pseudomalus meridianus Strumia, 1996, syn. nov.. One species is revalidated: Holopyga turkestanica Mocsáry, 1909, stat. resurr.. New status is proposed for: Pseudomalus cupratus (Mocsáry, 1889), stat. nov.. New combination is proposed for: Hedychridium amoenum (Mocsáry, 1911), comb. nov.. The reversal of priority is proposed for: Ellampus biaccinctus du Buysson, 1893, nomen protectum, and E. auratus var. gasperinii Mocsáry, 1889, nomen oblitum. New name is proposed for: Chrysis fusca Rosa, nom. nov. pro Chrysis ignita var. infuscata Mocsáry, 1889 nec Brullé, 1846. Pictures of eighty-nine type specimens are also provided.

  1. Contamination of cockroaches (Insecta: Blattaria) to medically fungi: A systematic review and meta-analysis.

    Science.gov (United States)

    Nasirian, H

    2017-12-01

    Fungal infections have emerged worldwide. Cockroaches have been proved vectors of medically fungi. A systematic meta-analysis review about cockroach fungal contamination was investigated. Relevant topics were collected between January 2016 and January 2017. After a preliminary review among 392 collected papers, 156 were selected to become part of the detailed systematic meta-analysis review. Cockroaches contaminated to 38 fungi species belonging to 19 families and 12 orders. About 38, 25 and 13 fungal species were recovered from the American, German and brown-banded cockroaches, respectively with a variety of medical importance. Except the fungi isolated from German and brown-banded cockroaches, 15 species have been isolated only from the American cockroaches. The global world mean and trend of cockroach fungal contamination were 84.1 and 50.6-100%, respectively in the human dwelling environments. There is a significant difference between cockroach fungal contamination in the urban and rural environments (P0.05). The external and internal cockroach fungal contamination is more dangerous than entire surfaces, while the internal is more dangerous than the external surface. The German and brown-banded cockroach fungal contamination are more dangerous than the American cockroaches in the hospital environments. The study indicates that globally cockroach fungal contamination has been increased recognizing as agents of human infections and associating with high morbidity and mortality in immune-compromised patients. These facts, along with insecticide resistance emergence and increasing globally cockroach infestation, reveal importance of cockroaches and need for their control more than ever. Copyright © 2017 Elsevier Masson SAS. All rights reserved.

  2. Two ancient bacterial endosymbionts have coevolved with the planthoppers (Insecta: Hemiptera: Fulgoroidea

    Directory of Open Access Journals (Sweden)

    Urban Julie M

    2012-06-01

    Full Text Available Abstract Background Members of the hemipteran suborder Auchenorrhyncha (commonly known as planthoppers, tree- and leafhoppers, spittlebugs, and cicadas are unusual among insects known to harbor endosymbiotic bacteria in that they are associated with diverse assemblages of bacterial endosymbionts. Early light microscopic surveys of species representing the two major lineages of Auchenorrhyncha (the planthopper superfamily Fulgoroidea; and Cicadomorpha, comprising Membracoidea [tree- and leafhoppers], Cercopoidea [spittlebugs], and Cicadoidea [cicadas], found that most examined species harbored at least two morphologically distinct bacterial endosymbionts, and some harbored as many as six. Recent investigations using molecular techniques have identified multiple obligate bacterial endosymbionts in Cicadomorpha; however, much less is known about endosymbionts of Fulgoroidea. In this study, we present the initial findings of an ongoing PCR-based survey (sequencing 16S rDNA of planthopper-associated bacteria to document endosymbionts with a long-term history of codiversification with their fulgoroid hosts. Results Results of PCR surveys and phylogenetic analyses of 16S rDNA recovered a monophyletic clade of Betaproteobacteria associated with planthoppers; this clade included Vidania fulgoroideae, a recently described bacterium identified in exemplars of the planthopper family Cixiidae. We surveyed 77 planthopper species representing 18 fulgoroid families, and detected Vidania in 40 species (representing 13 families. Further, we detected the Sulcia endosymbiont (identified as an obligate endosymbiont of Auchenorrhyncha in previous studies in 30 of the 40 species harboring Vidania. Concordance of the Vidania phylogeny with the phylogeny of the planthopper hosts (reconstructed based on sequence data from five genes generated from the same insect specimens from which the bacterial sequences were obtained was supported by statistical tests of codiversification. Codiversification tests also supported concordance of the Sulcia phylogeny with the phylogeny of the planthopper hosts, as well as concordance of planthopper-associated Vidania and Sulcia phylogenies. Conclusions Our results indicate that the Betaproteobacterium Vidania is an ancient endosymbiont that infected the common ancestor of Fulgoroidea at least 130 million years ago. Comparison of our findings with the early light-microscopic surveys conducted by Müller suggests that Vidania is Müller’s x-symbiont, which he hypothesized to have codiversified with most lineages of planthoppers and with the Sulcia endosymbiont.

  3. Two ancient bacterial endosymbionts have coevolved with the planthoppers (Insecta: Hemiptera: Fulgoroidea).

    Science.gov (United States)

    Urban, Julie M; Cryan, Jason R

    2012-06-14

    Members of the hemipteran suborder Auchenorrhyncha (commonly known as planthoppers, tree- and leafhoppers, spittlebugs, and cicadas) are unusual among insects known to harbor endosymbiotic bacteria in that they are associated with diverse assemblages of bacterial endosymbionts. Early light microscopic surveys of species representing the two major lineages of Auchenorrhyncha (the planthopper superfamily Fulgoroidea; and Cicadomorpha, comprising Membracoidea [tree- and leafhoppers], Cercopoidea [spittlebugs], and Cicadoidea [cicadas]), found that most examined species harbored at least two morphologically distinct bacterial endosymbionts, and some harbored as many as six. Recent investigations using molecular techniques have identified multiple obligate bacterial endosymbionts in Cicadomorpha; however, much less is known about endosymbionts of Fulgoroidea. In this study, we present the initial findings of an ongoing PCR-based survey (sequencing 16S rDNA) of planthopper-associated bacteria to document endosymbionts with a long-term history of codiversification with their fulgoroid hosts. Results of PCR surveys and phylogenetic analyses of 16S rDNA recovered a monophyletic clade of Betaproteobacteria associated with planthoppers; this clade included Vidania fulgoroideae, a recently described bacterium identified in exemplars of the planthopper family Cixiidae. We surveyed 77 planthopper species representing 18 fulgoroid families, and detected Vidania in 40 species (representing 13 families). Further, we detected the Sulcia endosymbiont (identified as an obligate endosymbiont of Auchenorrhyncha in previous studies) in 30 of the 40 species harboring Vidania. Concordance of the Vidania phylogeny with the phylogeny of the planthopper hosts (reconstructed based on sequence data from five genes generated from the same insect specimens from which the bacterial sequences were obtained) was supported by statistical tests of codiversification. Codiversification tests also supported concordance of the Sulcia phylogeny with the phylogeny of the planthopper hosts, as well as concordance of planthopper-associated Vidania and Sulcia phylogenies. Our results indicate that the Betaproteobacterium Vidania is an ancient endosymbiont that infected the common ancestor of Fulgoroidea at least 130 million years ago. Comparison of our findings with the early light-microscopic surveys conducted by Müller suggests that Vidania is Müller's x-symbiont, which he hypothesized to have codiversified with most lineages of planthoppers and with the Sulcia endosymbiont.

  4. Depositories of the type material of the species Coccidophilus lozadaiGonzalez, 2012 (Insecta: Coleoptera: Coccinellidae

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    Pedro W. Lozada

    2014-03-01

    Full Text Available 6 paratypes of the species Coccidophilus lozadai Gonzalez, 2012, are deposited in the collection of Servicio Nacional de Sanidad Agraria (SENASA, Lima, Peru. The holotype and remaining paratypes are deposited in the Museo de Historia Natural (MUSM, Lima, Peru, and National Museum of Natural History (USNM, Washington, D.C., USA.

  5. The preoral cavity of lower Hymenoptera (Insecta): comparative morphology and phylogenetic significance

    DEFF Research Database (Denmark)

    Vilhelmsen, Lars

    1996-01-01

    attached to the labrum; this renders the groundplan state of the labrum in the Apocrita uncertain. Twentyfive characters were defined in an attempt to eludicate the ‘Symphyta'-Apocrita transition. A numerical cladistic analysis of the characters was undertaken, resulting in 522 minimum length trees...

  6. The Distribution of eIF4E-Family Members across Insecta

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    Gritta Tettweiler

    2012-01-01

    Full Text Available Insects are part of the earliest faunas that invaded terrestrial environments and are the first organisms that evolved controlled flight. Nowadays, insects are the most diverse animal group on the planet and comprise the majority of extant animal species described. Moreover, they have a huge impact in the biosphere as well as in all aspects of human life and economy; therefore understanding all aspects of insect biology is of great importance. In insects, as in all cells, translation is a fundamental process for gene expression. However, translation in insects has been mostly studied only in the model organism Drosophila melanogaster. We used all publicly available genomic sequences to investigate in insects the distribution of the genes encoding the cap-binding protein eIF4E, a protein that plays a crucial role in eukaryotic translation. We found that there is a diversity of multiple ortholog genes encoding eIF4E isoforms within the genus Drosophila. In striking contrast, insects outside this genus contain only a single eIF4E gene, related to D. melanogaster eIF4E-1. We also found that all insect species here analyzed contain only one Class II gene, termed 4E-HP. We discuss the possible evolutionary causes originating the multiplicity of eIF4E genes within the genus Drosophila.

  7. Revision of the Neotropical bark mantis genus Liturgusa Saussure, 1869 (Insecta, Mantodea, Liturgusini

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    Gavin Svenson

    2014-03-01

    Full Text Available The praying mantis genus Liturgusa Saussure, 1869 occurs only in the Central and South America and represents the most diverse genus of Neotropical Liturgusini (Ehrmann 2002. The genus includes bark dwelling species, which live entirely on the trunks and branches of trees and run extremely fast. All species included within the genus Liturgusa are comprehensively revised with a distribution stretching from central Mexico, the island of Dominica to the southeastern regions of Brazil and southern Bolivia. All known species are redescribed to meet the standards of the new treatment of the genus. Three new genera are described including Fuga gen. n., Velox gen. n., and Corticomantis gen. n. for species previously included in Liturgusa as well as Hagiomantis. Liturgusa mesopoda Westwood, 1889 is moved to within the previously described genus Hagiomantis Audinet Serville, 1838. A total of 19 species are newly described within Liturgusa, Fuga, and Velox including L. algorei sp. n., L. bororum sp. n., L. cameroni sp. n., L. cura sp. n., L. dominica sp. n., L. fossetti sp. n., L. kirtlandi sp. n., L. krattorum sp. n., L. manausensis sp. n., L. maroni sp. n., L. milleri sp. n., L. neblina sp. n., L. purus sp. n., L. stiewei sp. n., L. tessae sp. n., L. trinidadensis sp. n., L. zoae sp. n., F. grimaldii sp. n., and V. wielandi sp. n. Four species names are synonymized: Liturgusa peruviana Giglio-Tos, 1914 syn. n. = Liturgusa nubeculosa Gerstaecker, 1889 and Hagiomantis parva Piza, 1966 syn. n., Liturgusa sinvalnetoi Piza, 1982 syn. n., and Liturgusa parva Giglio-Tos, 1914syn. n. = Mantis annulipes Audinet Serville, 1838. Lectotypes are designated for the following two species: Liturgusa maya Saussure & Zehntner, 1894 and Fuga annulipes (Audinet Serville, 1838. A male neotype is designated for Liturgusa guyanensis La Greca, 1939. Males for eight species are described for the first time including Liturgusa cayennensis Saussure, 1869, Liturgusa lichenalis Gerstaecker, 1889, Liturgusa guyanensis La Greca, 1939, Liturgusa maya Saussure & Zehntner, 1894, Liturgusa nubeculosa Gerstaecker, 1889, Fuga annulipes (Audinet Serville, 1838, Corticomantis atricoxata (Beier, 1931, and Hagiomantis mesopoda (Westwood, 1889. The female of Fuga fluminensis (Piza, 1965 is described for the first time. Complete bibliographic histories are provided for previously described species. The spelling confusion surrounding Liturgusa/Liturgousa is resolved. Full habitus images for males and females are provided for nearly all species. Habitus and label images of type specimens are provided when possible. Diagnostic illustrations of the head and pronotum for males and females are provided for all species when possible. Illustrations of male genital structures are provided for all species for which males are known. Measurement data, including ranges and averages, are provided for males and females of all species. Combined male and female genus and species level dichotomous keys are provided with a spanish translation. A complete table of all examined specimens lists label data, museum codes, repositories, and other specimen specific information. A KML file with all georeferenced locality records is downloadable from mantodearesearch.com for viewing in Google Earth. Natural history information is provided for species observed by the author.

  8. A new genus and species of Neotropical Nemobiinae (Insecta: Orthoptera: Grylloidea: Trigonidiidae: Nemobiinae).

    Science.gov (United States)

    Jesus, Fabiene Maria DE; Pereira, Marcelo Ribeiro; Rodrigues, Geanne Carla Ripani; Sperber, Carlos Frankl

    2017-06-09

    A new genus and a new species of Neotropical cricket is described: Pepoapua cariacica n. gen., n. sp., occurring in four Atlantic Forest remnants in the states of Bahia and Espírito Santo, Brazil. This new genus is morphologically similar in external characteristics, both male and female genitalia, with two other Neotropical genera of Nemobiinae: Amanayara and Kevanemobius. The combination of the external morphological characteristics, along with male genitalia, characterize a new genus through combination of the following characters: (i) males and females with morphologically similar tegmina; (ii) tegmina reduced, not reaching half of the second abdominal segment; (iii) dorsal field of the tegmina with parallel veins, without stridulatory vein or any specialized area for sound production; (iv) tibia of the first pair of legs without tympanum; (v) tibia of the third pair of legs with seven dorsal spurs, four inner and three outer, the proximo-dorsal inner spur reduced in size and the disto-dorsal inner spur without glandular aspect; (vi) ovipositor with distal portion of the dorsal and ventral valves serrated; (vii) male genitalia without evident bristles or sensillas; (viii) pseudepiphallic median lobe presenting apical and ventral projections.

  9. Rediscovering digitules in Aphidomorpha and the question of homology among Sternorrhyncha (Insecta, Hemiptera

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    Mark A. Metz

    2017-07-01

    Full Text Available We explore and expand on the morphological term digitule. The term was originally proposed for toe-like setae on a species of Phylloxera Boyer de Fonscolombe, 1834 (Hemiptera, Sternorrhyncha, Aphidomorpha by Henry Shimer, an American naturalist. While it is standard terminology in scale systematics (Hemiptera, Sternorrhyncha, Coccidomorpha, the term digitule was ignored by aphid specialists despite being the original taxon for which the term was described. Similar setae occur on many arthropod groups, so the homology is poorly understood even within any superfamily of Hemiptera. We provide the etymology of the term, a proposed explanation for why it was used among scale taxonomists and not aphid taxonomists, and discuss briefly options to progress beyond the confusion between terminology for morphology and homology in Sternorrhyncha.

  10. Piojos (Phthiraptera: Insecta) de aves de la familia Laridae (Aves: Charadriiformes) en Chile

    OpenAIRE

    GONZÁLEZ-ACUÑA, DANIEL; FISCHER, CHRISTOF; PALMA, RICARDO; MORENO, LUCILA; BARRIENTOS, CARLOS; MUÑOZ, LISANDRO; ARDILES, KAREN; CICCHINO, ARMANDO

    2006-01-01

    Seis especies de piojos (Phthiraptera: Philopteridae, Menoponidae) fueron colectadas sobre cuatro especies de aves marinas de la familia Laridae en la costa de Chile. Se registran: Saemundssonia sternae (Linnaeus, 1758) y Quadraceps sellatus (Burmeister, 1838) sobre el gaviotín boreal (Sterna hirundo, Linnaeus, 1758); Saemundssonia lari (O. Fabricius, 1780), Quadraceps punctatus (Burmeister, 1838) y Quadraceps ornatus (Grube, 1851) parasitando a la gaviota dominicana (Larus dominicanus Lichte...

  11. New records of lice (Insecta: Phthiraptera) from domestic and ornamental birds from Chile

    OpenAIRE

    González-Acuña, D; Lara, J; Cicchino, A

    2009-01-01

    Por medio del examen del plumaje de aves domésticas y ornamentales en Chile se reconfirma la presencia de los phthiraptera Menopon gallinae, Goniodes gigas, Goniocotes gallinae y Menacanthus stramineus en la gallina doméstica, Gallus gallus domesticus y se registra además por primera vez en el país la especie Menacanthus pallidulus. En aves ornamentales se registran en pavo, Meleagris gallipavo, la especie M. stramineus, en pavo real, Pavo cristatus las especies Goniodes pavonis y Amrysidea m...

  12. Preparing soft-bodied arthropods for microscope examination: Aphids (Insecta: Hemiptera: Aphididae)

    Science.gov (United States)

    Proper identification of aphids (Hemiptera: Aphididae) require preparation of the specimen on a microscope slide. This training video provides visual instruction on how to prepare aphid specimens on microscope slides for examination and indentification. Steps ranging from collection, specimen clear...

  13. Preparing soft-bodied arthropods for microscope examination: Whiteflies (Insecta: Hemiptera: Alyrodidae)

    Science.gov (United States)

    Proper identification of whiteflies (Hemiptera:Alyrodidae) requires preparation of the specimen on a microscope slide. This training video provides visual instruction on how to prepare whitefly specimens on microscope slides for examination and identification. Steps ranging from collection, specimen...

  14. Preparing soft-bodied arthropods for microscope examination: Soft Scales (Insecta: Hemiptera: Coccidae)

    Science.gov (United States)

    Proper identification of soft scales (Hemiptera:Coccidae) requires preparation of the specimen on a microscope slide. This training video provides visual instruction on how to prepare soft scale specimens on microscope slides for examination and identification. Steps ranging from collection, speci...

  15. Ctenolepisma almeriensis n. sp. of Lepismatidae (Insecta, Zygentoma from south-eastern Spain

    Directory of Open Access Journals (Sweden)

    Molero-Baltanás, R.

    2005-06-01

    Full Text Available Ctenolepisma almeriensis n. sp., from the south–eastern part of the Iberian Peninsula is described. This species was determined previously as Ctenolepisma lineata (Fabricius, 1775, which is widespread over the south–western Palaeartic region. The main difference between the two species is the setation of thoracic sternites. In each bristle–comb of the mesosternum and the metasternum, macrosetae are arranged in a single row in C. lineata and in two parallel rows in C. lmeriensis n. sp. In the prosternum, the first species shows 1–2 irregular lines of macrosetae per comb, and the new species shows 2–3 lines. Based on other parameters of setation, a discriminant analysis was carried out to separate a group of Spanish specimens of C. lineata from another group of specimens of the new species. This analysis demonstrated the validity of the occurrence of double or single lines of macrosetae in thoracic sternites to distinguish between thetwo species.

  16. Effects of changes in the riparian forest on the butterfly community (Insecta: Lepidoptera in Cerrado areas

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    Helena S.R. Cabette

    Full Text Available ABSTRACT Preserved riparian vegetation usually has greater environmental complexity than the riparian vegetation modified by human actions. These systems may have a greater availability and diversity of food resources for the species. Our objective was to evaluate the effect of changes on the structure of the riparian forest on species richness, beta diversity and composition of butterfly species in the Cerrado of Mato Grosso. We tested the hypotheses that: (i higher species richness and (ii beta diversity would be recorded in more preserved environments; and (iii species composition would be more homogeneous in disturbed habitats. For hypothesis testing, the riparian vegetation of eight streams were sampled in four periods of the year in a fixed transect of 100 m along the shores. The richness of butterfly species is lower in disturbed than in preserved areas. However, species richness is not affected by habitat integrity. Beta diversity differed among sites, such that preserved sites have greater beta diversity, showing greater variation in species composition. In addition, beta diversity was positively affected by environmental heterogeneity. A total of 23 of the 84 species sampled occurred only in the changed environment, 42 were exclusive to preserved sites and 19 occurred in both environments. The environmental change caused by riparian forest removal drastically affects the butterfly community. Therefore, riparian vegetation is extremely important for butterfly preservation in the Cerrado and may be a true biodiversity oasis, especially during the dry periods, when the biome undergoes water stress and resource supply is more limited.

  17. Abdominal macrochaetae of female Hylesia oratex Dyar, 1913 (Insecta: Lepidoptera: Saturniidae: external morphology and medical significance

    Directory of Open Access Journals (Sweden)

    ROSÂNGELA BRITO

    2015-09-01

    Full Text Available The representatives of the genus Hylesia Hübner, [1820] are significant among the medically important Lepidoptera. Adult females use abdominal setae to wrap and protect the eggs that remain for months in nature. These setae, in contact with human skin, may cause allergic reactions including swelling, itching and local erythema, known as lepidopterism. The morphology of the abdominal scales and setae from the female H. oratex Dyar, 1913 is herein described and aspects related to their medical significance are discussed. Portions of each abdominal segment were examined through a scanning electron microscope. Two types of scales without medical importance, and two types of setae with medical importance, classified as "true setae" and "modified setae" were found. The true setae, which are slightly fusiform and have radially arranged lateral projections, are responsible for the allergic reactions caused by skin penetration. The modified setae, which are larger, curved, with the median enlarged and serrated margins, can be responsible for the release of chemical substances. This information provides a better understanding of the structure of the urticating setae, which are responsible for lepidopterism outbreaks in humans, and contributes towards the identification of the moth species involved.

  18. The first Triassic dipteran (Insecta) from South America, with review of Hennigmatidae.

    Science.gov (United States)

    Lara, María Belén; Lukashevich, Elena D

    2013-01-01

    The first Triassic dipteran from South America is described based on an isolated wing from the lower Upper Triassic deposits of Argentina (Mendoza Province, Potrerillos Formation, Quebrada del Durazno locality). Trihennigma zavattierii gen. et sp. nov. is a member of the Mesozoic family Hennigmatidae, previously recorded only from Eurasia. A key for the genera and species of Hennigmatidae is provided and systematic position of the taxa is discussed.

  19. Diversity and distribution of butterflies (Insecta: Lepidoptera of district Dir lower, Khyber Pukhtoonkhwa, Pakistan

    Directory of Open Access Journals (Sweden)

    Muhammad Inayatullah Khan

    2016-03-01

    Full Text Available Butterflies are the fine-looking creatures and act as ecological indicators and pollinators. The present study is the first record of Butterfly fauna of Dir lower. Collection was carried out during March - August 2013. The specimens were collected and identified with the help of taxonomic keys and preserved specimens in National Insect Museum Islamabad. The collection of 375 specimens were preserved. Identification revealed 24 species belonging to 20 genera and 7 families. The species are Papilio polyctor Boisduval, Papilio demoleus Linnaeus, Junonia almanac Linnaeus, Pararge schakra Kollar, Junonia hierta Fabricius, Junonia orythea Linnaeus, Argyrius hyperbius Linnaeus, Hypolimnus bolina Linnaeus, Vanessa cashmiriensis Kollar, Phalantha phalantha Drury, Melitea didyma Esper, Lycaena phalaeas Linnaeus, Lybithea lipita Moore, Danius chrysippus Linnaeus, Hipparchia parasitas Kollar, Lethe rohria Fabricius, Maniola davendra Moore, Pontia daplidice Linnaeus, Belenois aurota Fabricius, Pieris brassicae Linnaeus, Colias erate Esper, Eurema hecabe Linnaeus, Colias fieldi Linnaeus and Cynthia cardui Linnaeus. The highest population was shown by Pieris brassicae followed by Danius chrysippus and Cynthia cardui. Twelve species belong to family Nymphalidae (50%, which shows the highest abundance rate. Butterfly density was the highest at Timergara. Butterfly fauna was the highest in May followed by August and lowest in March. It is concluded that pollution free environment of Dir Lower is more suitable for the survival of butterfly fauna. Large scale study is required to fully explore the butterfly fauna of the area.

  20. An annotated checklist of Odonata (Insecta of Kanha Tiger Reserve and adjoining areas, central India

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    P.K. Sahoo

    2013-01-01

    Full Text Available Odonates were recorded from Kanha Tiger Reserve and its adjoining areas during January-December 2010. Thirty eight species were recorded belonging to seven families and 26 genera. Twelve species distribution is first time recorded from the reserve. With the addition of these newly recorded species with the previous records the species richness of the reserve increased up to 48 species, belonging to eight families. Among the collected Anisopterans Orthretum sabina sabina (Drury was the most abundant species. A detailed annotated checklist of recorded odonates with the previous records is presented in the Table.

  1. Note on a nest of Saunders’ Embiid Oligotoma saundersii (Westwood (Insecta: Embioptera: Oligotomidae from Kolkata, India.

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    P. Dawn

    2014-09-01

    Full Text Available The biology and life stages of the Embioptera were less known though they are very interesting due to their web spinning ability and social living. This study shows the presence of three different life stages of hemimetabolous metamorphosis of Oligotoma saundersii (Westwood at a time in the nest. Larvae show both increase in size and changes in mandible structure during development. The male and female nymphs look similar but distinguishable by the presence of a dumbbell-shaped wing bud in the male. The wing bud is white, covered in a sac marked with light brown lines and minute hairs and hair follicles as well. The adult male shows increased pigmentation and chitinization, lengthening of antennae, development of wings and a drastic modification of the 10th tergum into distinct abdominal appendages upon the final stage nymph. Female nymphs are morphologically similar to adult females except for body sclerotization and are also able to produce silk-web. Reproductive structures of the species are simple; in the male there is a vesicular testis, a thick vas deferens and a swollen seminal vesicle and in the female there are 3-4 rows of ovarian follicles meeting together to form a thick oviduct on both sides. The presence of more than one generation in a nest and the community structure indicates their interesting social life.

  2. Checklist and key identification of Chironomidae Larvae (Insecta: Diptera in Marbor River (Isfahan, Iran

    Directory of Open Access Journals (Sweden)

    Azam Karami

    2014-12-01

    Full Text Available Chironomidae (Diptera which are distributed worldwide, are the most abundant and diverse insects in many freshwater ecosystems, as well as inland waters of Iran. However, very few researches were done for identification of this group in Iran, and there is a poor knowledge of their faunal diversity distribution in this country. To investigate chironomid larvae in Marbor river, Isfahan Province, seasonal samplings were done (2003-2004 in five selected sites along the river course, using Dredge sampler 3 times for every site. After collecting, the samples were preserved in formaldehyde at the site. Samples were sorted out in laboratory and the Chironomidae larvae were identified down to the generic level using the identification keys, and light and phase-contrast microscopes. Results revealed 39 genera from four subfamilies in Marbor River: Chironominae (15 genera, Diamesinae (2 genera, Orthocladiinae (17 genera and Tanypodinae (5 genera. From these, 13 genera were reported for the first time in Iran. An identification key for the taxon in Marbor river was provided.

  3. Checklist de Fanniidae (Insecta, Diptera do Estado de Mato Grosso do Sul

    Directory of Open Access Journals (Sweden)

    Diana Grisales

    Full Text Available RESUMO Nesse artigo é fornecida uma lista de espécies de Fanniidae do estado de Mato Grosso do Sul. Até o momento são registradas 11 espécies, o que representa 21% das espécies de Fanniidae conhecidas para o Brasil.

  4. Odonata (Insecta diversity of Chinnar Wildlife Sanctuary, the southern Western Ghats, India

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    C.K. Adarsh

    2015-02-01

    Full Text Available A study was conducted at Chinnar Wildlife Sanctuary, Idukki District, Kerala, the southern Western Ghats, to assess the diversity of odonates. We report 48 species of odonates, which include 31 species of Anisoptera (dragonflies and 17 species of Zygoptera (damselflies. Among the dragonflies, the family Libellulidae dominated with 25 species, while Coenagrionidae with seven species was the dominant family among the damselflies. The odonate diversity of Chinnar WS accounted for 31.16 % of the odonates in Kerala and 27.58% of the odonates of the Western Ghats. Chinnar also recorded two species of odonates that are endemic to the Western Ghats, which are, the Pied Reed Tail Protosticta gravelyi and the Travancore Bamboo Tail Esme mudiensis.

  5. A Preliminary Survey of Species Composition of Termites (Insecta: Isoptera) in Samunsam Wildlife Sanctuary, Sarawak.

    Science.gov (United States)

    Jamil, Norsyarizan; Ismail, Wan Nurainie Wan; Abidin, Siti Shamimi; Amaran, Mazdan Ali; Hazali, Ratnawati

    2017-07-01

    A survey on termite species composition was conducted in Samunsam Wildlife Sanctuary, Sarawak in February 2015. Overall 19 species of termite belonging to 13 genera and 8 subfamilies was found in the sanctuary. It was recorded the subfamily of Termitinae had the highest number of species (6 species, equal to 31.58% of total species), followed by Nasutermitinae (3 species, 15.79%), Macrotermitinae, Amitermitinae, Rhinotermitinae, Coptotermitinae, (2 species, 10.53% respectively), and Heterotermitinae, Termitogetoninae (1 species, 5.26% respectively). Since this rapid survey is the first termite assemblage representation in Samunsam Wildlife Sanctuary, the preliminary result may serve as the baseline data for termite composition in the area. Therefore, a whole coverage for the area within this sanctuary would definitely increase the number of termite species found in the sanctuary.

  6. Odonata (Insecta diversity of Salim Ali Bird Sanctuary and its adjacent areas in Thattekkad, Kerala, India

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    A.P. Varghese

    2014-06-01

    Full Text Available Odonata diversity of Salim Ali Bird Sanctuary and its adjacent areas in Thattekkad, Kerala, India were documented from 2010 to 2012. Opportunistic observations were carried out to record species diversity. Eighty-two species of Odonata, which included 51 species of Anisoptera (dragonflies and 31 species of Zygoptera (damselflies, were recorded during the study. Of this 21 species are endemic to the Western Ghats. The presence of the IUCN categorized nearly threatened species like Megalogomphus hannyngtoni and vulnerable species like Platysticta deccanensis and Protosticta sanguinostigma is remarkable.

  7. [Histological structure of tripartite mushroom bodies in ground beetles (Insecta, Coleoptera: Carabidae)].

    Science.gov (United States)

    Panov, A A

    2013-01-01

    Contrary to members of the suborder Polyphaga; ground beetles have been found to possess tripartite mushroom bodies, which are poorly developed in members of basal taxa and maximally elaborated in evolutionarily advanced groups. Nevertheless, they do not reach the developmental stage, which has been previously found in particular families of beetles. It has been pointed out that anew formation of the Kenyon cells occurs during at least the first months of adult life, and inactive neuroblasts are found even in one-year-old beetles. It has been suggested that there is a relation between the Kenyon cell number and development of the centers of Kenyon cell new-formation.

  8. Die Tipuliden von Makaronesien (Insecta, Diptera, Tipulidae). Ein systematischer und zoogeographischer Beitrag zur Kenntnis von Inselfaunen

    NARCIS (Netherlands)

    Theowald, Br.

    1977-01-01

    Since our knowledge of the greater part of the Tipulidae of the Canary Islands, Madeira and the Azores is poor, the types of most species described from these islands have been studied, and critical species are redescribed. One new species, Limonia (Dicranomyia) michaeli n.sp. is described, and a

  9. First record of Triaenodes bicolor (Curtis, 1834) (Insecta: Trichoptera) from the Ecoregion Hellenic Western Balkans

    OpenAIRE

    Ibrahimi, Halil; Kuçi, Ruzhdi; Bilalli, Astrit; Gashi, Ermira

    2017-01-01

    We collected adult caddisfly specimens with entomological nets and ultraviolet light traps monthly from May to November 2012 in Brezne Lake situated in Dragash Municipality. During this investigation we found the Leptocerid species Triaenodes bicolor for the first time in Kosovo; it is also the first record for Ecoregion 6, Hellenic Western Balkans. Additionally, this is the first record of the genus Triaenodes from Kosovo. In total seven males and three females of this species were found. Tr...

  10. DNA barcodes to identify species and explore diversity in the Adelgidae (Insecta: Hemiptera: Aphidoidea)

    Science.gov (United States)

    R.G. Foottit; H.E.L. Maw; N.P. Havill; R.G. Ahern; M.E. Montgomery

    2009-01-01

    The Adelgidae are relatively small, cryptic insects, exhibiting complex life cycles with parthenogenetic reproduction. Due to these characteristics, the taxonomy of the group is problematic. Here, we test the effectiveness of the standard 658-bp barcode fragment from the 5'-end of the mitochondrial cytochrome c oxidase 1 gene (COI) in...

  11. Louse (Insecta: Phthiraptera infestations of the Amur Falcon (Falco amurensis and the Red-footed Falcon

    Directory of Open Access Journals (Sweden)

    Piross Imre Sándor

    2015-06-01

    Full Text Available Little is known about the louse species harboured by Red-footed and Amur Falcons despite the fact that various life-history traits of these hosts make them good model species to study host-parasite interactions. We collected lice samples from fully grown Amur (n=20 and Red-footed Falcons (n=59, and from nestlings of Red-footed Falcons (n=179 in four countries: Hungary, India, Italy and South Africa. We identified 3 louse species on both host species, namely Degeeriella rufa, Colpocephalum subzerafae and Laembothrion tinnunculi. The latter species has never been found on these hosts. Comparing population parameters of lice between hosts we found significantly higher prevalence levels of D. rufa and C. subzerafae on Amur Falcons. Adult Red-footed Falcons had higher D. rufa prevalence compared to C. subzerafae. For the first time we also show inter-annual shift in prevalence and intensity levels of these species on Red-footed Falcons; in 2012 on adult hosts C. subzerafae had higher intensity levels than D. rufa, however in 2014 D. rufa had significantly higher intensity compared to C. subzerafae. In case of nestlings both louse species had significantly higher preva lence levels than in 2014. The exact causes of such inter-annual shifts are yet to be understood.

  12. Genetic diversity analysis of Chrysopidae family (Insecta, Neuroptera) via molecular markers.

    Science.gov (United States)

    Yari, Kheirollah; Mirmoayedi, Alinaghi; Marami, Marzieh; Kazemi, Elham; Kahrizi, Danial

    2014-09-01

    In entomology, improvement of molecular methods would be beneficial tools for accurate identification and detecting the genetic diversity of insect species to discover a corroborative evidence for the traditional classification based on morphology. The aim of this study was focused on RAPD-PCR method for distinguishing the genetic diversity between eight species of Chrysopidae family. In current research, many specimens were collected in different locations of Tehran province (Iran), between them 24 specimens were identified. The wing venation, male genitalia and other morphological characters were used for identification and also the sexing of species was recognized with study of external genitalia. Then, the DNA was extracted with CTAB method. The RAPD-PCR method was carried out with twenty random primers. The agarose gel electrophoresis was used for separation of the PCR products. Based on electrophoresis results, 133 bands were amplified and between them, 126 bands were poly-morph and others were mono-morph. Also, among the applied primers, the primers OPA02 with 19 bands and OPA03 with 8 bands were amplified the maximum and minimum of bands, respectively. The results showed that 80.35 and 73.21 % of genetic similarity existed between Chrysopa pallens-Chrysopa dubitans, and between the Chrysoperla kolthoffi and Chrysoperla carnea, respectively. The minimum (45.53 %) of genetic similarity was observed between C. kolthoffi and C. dubitans, and the maximum (0.80 %) was seen between C. pallens and C. dubitans.

  13. Diversity of Braconidae (Insecta, Hymenoptera of the Parque Natural Municipal de Porto Velho, Rondonia, Brazil

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    Sian de Souza Gadelha

    2012-12-01

    Full Text Available Braconidae is a highly diversified family of Hymenoptera and usually known by their role in biological control both in agricultural and natural ecosystems. Despite of that, little is known about its diversity in the Amazon region. The present work inventoried the braconid fauna of an Open Ombrophylous Forest with Palm Trees of the Parque Natural Municipal de Porto Velho, RO. Insects were collect from June/2008 to May/2009 using six Malaise traps in different parts of the reserve. A total of 377 wasps were captured, 17 subfamilies and 56 genera identified. Braconinae, Microgastrinae, Doryctinae and Rogadinae subfamilies were very abundant, and also the genera Aleiodes, Bracon, Capitonius, Compsobracon, Heterospilus, Hymenochaonia, Opius, Pedinotus, Rogas and Stantonia. The calculated Shannon diversity index was 2.15 and 3.3 for subfamily and genera, respectively, which were, generally, higher than the values found for other regions in Brazil. Generally, parasitoids were more abundant during the rainy season. The present work contributes with new genera records and faunistic data of Braconidae in Rondonia State, western Amazon.

  14. Diversity of Drosophilidae (Insecta, Diptera in the Restinga forest of southern Brazil

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    Mayara Ferreira Mendes

    2017-07-01

    Full Text Available Although members of Drosophilidae are frequently the topic of ecological studies in Brazil, few have explored Restinga or, until only recently, Pampa biome environments. This study proposes to describe the diversity and temporal variation of the Drosophilidae assemblage from a Restinga forest of Rio Grande do Sul, Brazil. We performed monthly collections from February 2013 to January 2014 using yeasted banana-baited traps. A total of 25,093 individuals of 46 species were sampled. Drosophila simulans and the D. willistoni subgroup were the dominant taxa; D. polymorpha, D. immigrans, D. paraguayensis and Zygothrica orbitalis were of intermediate abundance, and the other 40 species were rare. Based on sampling effort estimators, our collections were sufficient. Jaccard and Morisita indices evaluated using ANOSIM reveal little similarity in the composition of samples across months. Canonical correspondence analysis shows that the variables of maximum and minimum temperature are the main factors responsible for differentiation of the species composition of the assemblage throughout the year, whereby collections in the coldest periods (July, August and September are those with a more differentiated composition. In these months, the dominance of D. simulans and the D. willistoni subgroup decreases while increased abundance of the D. tripunctata group (as D. paraguayensis and Z. orbitalis occurs. In comparison to other studies carried out in environments in southernmost Brazil, we observed a similar pattern of fluctuation in abundance over the year, with a higher abundance of dominant species in warmer months and population sizes decreasing in colder months. Keywords: Biodiversity analysis, Community ecology, New distribution record, Pampa biome, Taxonomic survey

  15. Antimicrobial activity of the pygidial gland secretion of three ground beetle species (Insecta: Coleoptera: Carabidae)

    Science.gov (United States)

    Nenadić, Marija; Soković, Marina; Glamočlija, Jasmina; Ćirić, Ana; Perić-Mataruga, Vesna; Ilijin, Larisa; Tešević, Vele; Vujisić, Ljubodrag; Todosijević, Marina; Vesović, Nikola; Ćurčić, Srećko

    2016-04-01

    The antimicrobial properties of the pygidial gland secretions released by the adults of the three ground beetle species, Carabus ullrichii, C. coriaceus, and Abax parallelepipedus, have been tested. Microdilution method was applied for detection of minimal inhibitory concentrations (MICs), minimal bactericidal concentrations (MBCs), and minimal fungicidal concentrations (MFCs). Additionally, morpho-histology of the pygidial glands is investigated. We have tested 16 laboratory and clinical strains of human pathogens—eight bacterial both gram-positive and gram-negative species and eight fungal species. The pygidial secretion samples of C. ullrichii have showed the strongest antimicrobial effect against all strains of treated bacteria and fungi. Staphylococcus aureus, Lysteria monocytogenes, and Salmonella typhimurium proved to be the most sensitive bacterial strains. Penicillium funiculosum proved to be the most sensitive micromycete, while P. ochrochloron and P. verrucosum var . cyclopium the most resistant micromycetes. The pygidial secretion of C. coriaceus has showed antibacterial potential solely against Pseudomonas aeruginosa and antifungal activity against Aspergillus fumigatus, A. versicolor, A. ochraceus, and P. ochrochloron. Antibacterial properties of pygidial gland secretion of A. parallelepipedus were achieved against P. aeruginosa, while antifungal activity was detected against five of the eight tested micromycetes (A. fumigatus, A. versicolor, A. ochraceus, Trichoderma viride, and P. verrucosum var . cyclopium). Commercial antibiotics Streptomycin and Ampicillin and mycotics Ketoconazole and Bifonazole, applied as the positive controls, showed higher antibacterial/antifungal properties for all bacterial and fungal strains. The results of this observation might have a significant impact on the environmental aspects and possible medical purpose in the future.

  16. Re-visiting phylogenetic and taxonomic relationships in the genus Saga (Insecta: Orthoptera.

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    Balázs Kolics

    Full Text Available Twelve of the 13 bushcricket species of the Saga genus are bisexuals and diploids, except the parthenogenetic and tetraploid bush cricket, Saga pedo. Despite a continuous research effort stretching through the 1900s, the taxonomic relationships of the Saga species are still disputed. In this study, our primary aim was to reveal natural relationships of the European Saga species and three of their Asian relatives, with special attention to the problematic taxonomy of two subspecies: S. campbelli campbelli and S. c. gracilis. Following a phylogenetic analysis of eight species, a comprehensive study was carried out on the above three taxa by using acoustic and morphometric approaches in parallel. Our phylogenetic data showed that European Saga species evolved from a monophyletic lineage. The geographical transitional species S. cappadocica was positioned between European and Asian lineages supporting the idea that the European Saga lineage originated phylogeographically from the Asian clade. The above results showed better agreement with the morphological data than with earlier ones based either on karyology or acoustic information only. After reviewing our data, we concluded that Saga pedo has most likely evolved from S. c. gracilis and not from S. rammei or S. ephippigera, as proposed by earlier studies. S. c. gracilis shares the same ITS2 haplotype with S. pedo, indicating that the latter could have evolved from populations of the former, probably through whole genome duplication. Based on acoustic and morphometric differences, we propose to elevate the two subspecies, S. campbelli campbelli and S. c. gracilis, to species level status, as Saga gracilis Kis 1962, and Saga campbelli Uvarov 1921. The present work sets the stage for future genetic and experimental investigations of Saginae and highlights the need for additional comprehensive analysis involving more Asian Saga species.

  17. Re-visiting phylogenetic and taxonomic relationships in the genus Saga (Insecta: Orthoptera).

    Science.gov (United States)

    Kolics, Balázs; Ács, Zoltán; Chobanov, Dragan Petrov; Orci, Kirill Márk; Qiang, Lo Shun; Kovács, Balázs; Kondorosy, Előd; Decsi, Kincső; Taller, János; Specziár, András; Orbán, László; Müller, Tamás

    2012-01-01

    Twelve of the 13 bushcricket species of the Saga genus are bisexuals and diploids, except the parthenogenetic and tetraploid bush cricket, Saga pedo. Despite a continuous research effort stretching through the 1900s, the taxonomic relationships of the Saga species are still disputed. In this study, our primary aim was to reveal natural relationships of the European Saga species and three of their Asian relatives, with special attention to the problematic taxonomy of two subspecies: S. campbelli campbelli and S. c. gracilis. Following a phylogenetic analysis of eight species, a comprehensive study was carried out on the above three taxa by using acoustic and morphometric approaches in parallel. Our phylogenetic data showed that European Saga species evolved from a monophyletic lineage. The geographical transitional species S. cappadocica was positioned between European and Asian lineages supporting the idea that the European Saga lineage originated phylogeographically from the Asian clade. The above results showed better agreement with the morphological data than with earlier ones based either on karyology or acoustic information only. After reviewing our data, we concluded that Saga pedo has most likely evolved from S. c. gracilis and not from S. rammei or S. ephippigera, as proposed by earlier studies. S. c. gracilis shares the same ITS2 haplotype with S. pedo, indicating that the latter could have evolved from populations of the former, probably through whole genome duplication. Based on acoustic and morphometric differences, we propose to elevate the two subspecies, S. campbelli campbelli and S. c. gracilis, to species level status, as Saga gracilis Kis 1962, and Saga campbelli Uvarov 1921. The present work sets the stage for future genetic and experimental investigations of Saginae and highlights the need for additional comprehensive analysis involving more Asian Saga species.

  18. Symbiotic microorganisms in Puto superbus (Leonardi, 1907) (Insecta, Hemiptera, Coccomorpha: Putoidae).

    Science.gov (United States)

    Szklarzewicz, Teresa; Kalandyk-Kołodziejczyk, Małgorzata; Michalik, Katarzyna; Jankowska, Władysława; Michalik, Anna

    2018-01-01

    The scale insect Puto superbus (Putoidae) lives in mutualistic symbiotic association with bacteria. Molecular phylogenetic analyses have revealed that symbionts of P. superbus belong to the gammaproteobacterial genus Sodalis. In the adult females, symbionts occur both in the bacteriocytes constituting compact bacteriomes and in individual bacteriocytes, which are dispersed among ovarioles. The bacteriocytes also house a few small, rod-shaped Wolbachia bacteria in addition to the numerous large, elongated Sodalis-allied bacteria. The symbiotic microorganisms are transovarially transmitted from generation to generation. In adult females which have choriogenic oocytes in the ovarioles, the bacteriocytes gather around the basal part of the tropharium. Next, the entire bacteriocytes pass through the follicular epithelium surrounding the neck region of the ovariole and enter the space between oocyte and follicular epithelium (perivitelline space). In the perivitelline space, the bacteriocytes assemble extracellularly in the deep depression of the oolemma at the anterior pole of the oocyte, forming a "symbiont ball".

  19. Structure of Drosophilidae Assemblage (Insecta, Diptera in Pampa Biome (São Luiz Gonzaga, RS

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    Jean Lucas Poppe

    2012-01-01

    Full Text Available The Brazilian Pampa (the southernmost end of the country is currently a highly modified environment because of increasing agricultural activities. In many places, only small parts of grasslands remain inside an agricultural landscape. Drosophilidae (Diptera have been widely used as a potential bioindicators to monitor the effects of anthropogenic changes in natural environments. However, the fauna of Drosophilidae in the Pampa Biome from natural and disturbed environments, still remains largely unknown. The present study represents one of the first attempts to fill this gap, showing results from monthly collections in the municipality of São Luiz Gonzaga (28º24'28"S, 54º57'39"W, in the Brazilian Pampa. A species inventory was carried out in two contrasting environments, an urban zone and a forest remnant (rural zone. In both areas banana-baited traps were used to capture adult drosophilids. The identification was made using external morphology and male terminalia. In total, 13,379 drosophilids were analyzed (rural zone: N = 8,812 and Sobs = 25; urban zone: N = 4,567 and Sobs = 16. In the present study, 16 (60% out of 26 species were found exclusively or preferentially in the forest. The period of highest richness was between the months of June to November (roughly winter and spring, and the period of lowest richness was from December to May (roughly summer and autumn. An analysis of cluster by the Coefficient of Jaccard showed that species composition slightly changes when the period of the year with higher temperatures (from January to May is compared with the period with lower temperatures (from June to October. The species abundances were also highly affected by seasonality, as revealed by the Morisita Index, since the samples clustered into similar groups in consecutive periods and in the same season, showing the seasonal preference of some species. The time component was a determinant in the diversity of the assemblage, surpassing the spatial effect. The strong reduction in diversity in the urban area when compared to a small forest patch is evidence of the importance of the natural environments in maintaining the diversity in the Pampa biome, currently a highly disturbed landscape.

  20. Redescription de l'holotype de Ephemera orientalis Mclachlan, 1875 (Insecta, Ephemeroptera)

    NARCIS (Netherlands)

    Demoulin, G.

    1965-01-01

    En 1875, R. McLachlan décrivit Ephemera orientalis d'après un unique exemplaire ♂, capturé au Japon par P. F. von Siebold. Depuis lors, l'espèce a été signalée à nouveau, non seulement du Japon, mais de Sibérie orientale, et ce par divers auteurs. Mais aucune iconographie n'en a été donnée. En 1952,

  1. New Eocene damselflies and first Cenozoic damsel-dragonfly of the isophlebiopteran lineage (Insecta: Odonata).

    Science.gov (United States)

    Garrouste, Romain; Nel, André

    2015-10-09

    The study of a new specimen of Petrolestes hendersoni from the Eocene Green Formation allows a more precise description of the enigmatic damselfly and the diagnosis of the Petrolestini. Petrolestes messelensis sp. nov. is described from the Eocene Messel Formation in Germany, extending the distribution of the Petrolestini to the European Eocene. The new damsel-dragonfly family Pseudostenolestidae is described for the new genus and species Pseudostenolestes bechlyi, from the Eocene Messel Formation. It is the first Cenozoic representative of the Mesozoic clade Isophlebioptera.

  2. Faktoren, die das Eiablageverhalten und die Ovulation Wüsten bewohnender Tenebrioniden (Coleoptera: Insecta) beeinflussen

    OpenAIRE

    Rössl, Rüdiger

    2008-01-01

    Über das Eiablage Verhalten und die Faktoren, welche die Eiablage begünstigen, ist bei den meisten der fast 20000 Tenebrioniden nichts bekannt. Lediglich bei einigen wirtschaftlich wichtigen Arten gibt es dazu Untersuchungen (JAKOBS & RENNER 1988). Als eine der wasserärmsten Wüsten der Welt ist die Namib reich an endemischen Coleopteren – insbesondere 320 Tenebrionidaearten (HOLM & DE MEILLON 1996). Langzeituntersuchungen an Tenebrioniden (HENSCHEL 1994, HENSCHEL et al. 1998) legen die Vermut...

  3. THE FIRST REPORT OF THE DIVERSITY OF ENSIFERA (INSECTA: ORTHOPTERA FROM ROKAN HULU DISTRICT, RIAU PROVINCE

    Directory of Open Access Journals (Sweden)

    Sutrisno Syahlan

    2017-06-01

    Full Text Available The objective of this study was to determine the diversity of the suborder Ensifera in Dusun 3, Rambah Hilir Tengah, Rambah Hilir Sub-District, Rokan Hulu District, Riau Province, Indonesia. The study was conducted from September 2015 to January 2016 at six sampling locations by sweep net and hand picking at day and night hours. We recorded 17 species of the Ensifera belonging to 12 genera, 2 families, and 10 subfamilies. The diversity comprised of Conochepalus maculatus, Conochepalus melaenus, Conochepalus sp., Elbenia sp., Elimaea sp., Euscyrtus concinnus, Hexacentrus unicolor, Loxoblemus parabolicus, Mecopoda elongate, Mecopoda sp., Nisitrus vittatus, Orthelimaea sp., Podoscirtinae species 1 (unidentified, Teleogryllus emma, Teleogryllus sp., Trellius sp. and Xabea sp. The C. maculatus and E. concinnus were the predominant species in this study.

  4. Diversity of Orthoptera (Insecta fauna of Achanakmar Wildlife Sanctuary, Bilaspur, Chhattisgarh, India

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    Sunil Kumar Gupta

    2017-03-01

    Full Text Available The paper presents the distributional record of the Orthoptera fauna of Achanakmar Wildlife Sanctuary, Bilaspur, Chhattisgarh, India. Thirty-three species pertaining to 30 genera under five families are reported. The habitus photographs and map is provided for the first time.

  5. A survey of the praying mantises of Rwanda, including new records (Insecta, Mantodea).

    Science.gov (United States)

    Tedrow, Riley; Nathan, Kabanguka; Richard, Nasasira; Svenson, Gavin J

    2015-10-01

    We report the results of two surveys targeting praying mantises in four localities in Rwanda, specifically Akagera National Park, Nyungwe National Park, Volcanoes National Park, and the Arboretum de Ruhande at the National University of Rwanda. Using an assortment of collecting techniques, including metal halide light traps, sweep netting vegetation and general searching, we obtained 387 adult and 352 juvenile specimens, representing 41 species. A total of 28 novel species records for Rwanda are added to the 18 previously recorded species for the country, in addition to 20 novel species records for the broader region, including neighbouring Uganda and Burundi. This study provides high resolution images of the dorsal habitus of both sexes of representative species, both pinned and living. Species distribution records are presented and discussed. With a 155% increase in species recorded from Rwanda, this survey illustrates the need for further taxonomic work in the region.

  6. Effects of seasonality on drosophilids (Insecta, Diptera) in the northern part of the Atlantic Forest, Brazil.

    Science.gov (United States)

    Coutinho-Silva, R D; Montes, M A; Oliveira, G F; de Carvalho-Neto, F G; Rohde, C; Garcia, A C L

    2017-10-01

    Seasonality is an important aspect associated with population dynamic and structure of tropical insect assemblages. This study evaluated the effects of seasonality on abundance, richness, diversity and composition of an insect group, drosophilids, including species native to the Neotropical region and exotic ones. Three preserved fragments of the northern Atlantic Forest were surveyed, where temperatures are above 20 °C throughout the year and rainfall regimes define two seasons (dry and rainy). As opposed to other studies about arthropods in tropical regions, we observed that abundance of drosophilids was significantly higher in the dry season, possibly due to biological aspects and the colonization strategy adopted by the exotic species in these environments. Contrarily to abundance, we did not observe a seasonal pattern for richness. As for other parts of the Atlantic Forest, the most representative Neotropical species (Drosophila willistoni, D. sturtevanti, D. paulistorum and D. prosaltans) were significantly more abundant in the rainy season. Among the most abundant exotic species, D. malerkotliana, Zaprionus indianus and Scaptodrosophila latifasciaeformis were more importantly represented the dry season, while D. simulans was more abundant in the rainy period. The seasonality patterns exhibited by the most abundant species were compared to findings published in other studies. Our results indicate that exotic species were significantly more abundant in the dry season, while native ones exhibited an opposite pattern.

  7. Insecta, Coleoptera, Cerambycidae, Cerambycinae, Trachyderini: New state and country records from South America

    Directory of Open Access Journals (Sweden)

    Quintino, H. Y. S.

    2010-01-01

    Full Text Available Based on the revision of the collections of the Museu Nacional, Universidade Federal do Rio de Janeiro andthe National Museum of Natural History, Smithsonian Institution, the current work provides new localities for 32 speciesand two subspecies of Trachyderini from South America. Thirteen new country records from Argentina, Brazil, Colombia,Ecuador, Peru, Surinam and Venezuela and 35 new state records from Brazil are registered.

  8. Endocrine regulation of the reproductive arrest in the long-winged females of a flightless bug. Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

    Czech Academy of Sciences Publication Activity Database

    Hodková, Magdalena; Socha, Radomír

    2006-01-01

    Roč. 103, č. 3, (2006), s. 523-529 ISSN 1210-5759 R&D Projects: GA ČR(CZ) GA206/05/2222; GA ČR(CZ) GA206/03/0016 Institutional research plan: CEZ:AV0Z50070508 Keywords : Pyrrhocoris apterus * macroptery * brachyptery Subject RIV: ED - Physiology Impact factor: 0.782, year: 2006

  9. Maternal care in Gargaphia decoris (Heteroptera, Tingidae, with comments on this behavior within the genus and family

    Directory of Open Access Journals (Sweden)

    Marcus Guidoti

    2015-06-01

    Full Text Available Maternal care in Gargaphia decoris is described for the first time. A video is presented as supplementary material. The knowledge on such trait within Tingidae is summarized. The behavior within the family is discussed, and the potential as a source of phylogenetic characters for further analyses is stressed.

  10. Suitability of food plants for Oxycarenus lavaterae (Heteroptera: Lygaeidae), a mediterranean bug invasive in Central and South-East Europe

    Czech Academy of Sciences Publication Activity Database

    Kalushkov, P.; Nedvěd, Oldřich

    2010-01-01

    Roč. 63, č. 2 (2010), s. 271-276 ISSN 1310-1331 Grant - others:Bulgarian National Science Fund, Ministry of Education and Science(BG) B-1508 Institutional research plan: CEZ:AV0Z50070508 Keywords : Oxycarenus lavaterae * host plant specificity * fecundity Subject RIV: EH - Ecology, Behaviour Impact factor: 0.219, year: 2010

  11. Review of the genus Lanchnophorus (Hemiptera: Heteroptera: Rhyparochromidae) with description of three new species and other nomenclatural changes.

    Science.gov (United States)

    Kment, Petr; Carapezza, Attilio; Jindra, Zdeněk; Kondorosy, Előd

    2017-01-25

    The generic name Lanchnophorus Reuter, 1887, deemed for a long time to be unavailable as incorrect original spelling of Lachnophorus (in fact Lachnophorus Distant, 1903 is an unjustified emendation of the former), is restored as a valid name of the genus. Lachnesthus Bergroth, 1915, syn. nov. (new name for the preoccupied Lachnophorus Distant, 1903) is considered junior synonym of Lanchnophorus. The following nomenclatural changes are proposed: Lanchnophorus flavus (Scudder, 1971) comb. nov. = Lachnesthus chinai Scudder, nomen nudum; Lanchnophorus guttulatus Reuter, 1887, comb. restit. = Lachnophorus albidomaculatus Distant, 1913, syn. nov. = Lachnesthus rodriguezensis China, 1925, syn. nov.; Lanchnophorus leucospilus (Walker, 1872) comb. nov.; Lanchnophorus merula (Distant, 1903) comb. nov.; and Lanchnophorus singalensis (Dohrn, 1860) comb. nov. Three new species are described: Lanchnophorus gaoqingae Kment & Jindra sp. nov. from China (Yunnan), Lanchnophorus seminitens Kment & Carapezza sp. nov. from Socotra Island (Yemen), and Lanchnophorus webbi Kondorosy sp. nov. from India: Tamil Nadu. Bibliographies and known distribution of all the included species are reviewed. The following new country and state records are provided: L. flavus from Central African Republic, Ethiopia, Ghana, Mali, Malawi, Niger, Zambia and Zimbabwe; L. leucospilus from China (Yunnan) and Laos, L. merula from India (Kerala/Tamil Nadu) and Thailand; L. singalensis from Angola, Benin, Mozambique, Namibia, Senegal, Sierra Leone, Tanzania, Togo, Uganda, Zambia, Zimbabwe, China (Hainan), Iran (Sistan and Ba-luchestan), Oman, Pakistan, India (Himachal Pradesh, Karnataka, Kerala, Rajasthan), Malaysia, Philippines, and Thailand.

  12. Response of the reduviid bug, Rhynocoris marginatus (Heteroptera: Reduviidae) to six different species of cotton pests

    DEFF Research Database (Denmark)

    Sahayaraj, Kitherian; Muthu Kumar, Subramanian; Enkegaard, Annie

    2016-01-01

    In Indian agro-ecosystems Rhynocoris marginatus (F.) is one of the most abundant predatory arthropods and feeds on a wide range of insect pests. We investigated the responses of R. marginatus to six species of cotton pests: Spodoptera litura (F.), Sylepta derogata (F.), Pericallia ricini (F.), My...

  13. The complete mitochondrial genome of Anoplocnemis curvipes F. (Coreinea, Coreidae, Heteroptera), a pest of fresh cowpea pods

    Science.gov (United States)

    The complete 16,345-bp mitochondrial genome of the agriculturally-destructive pod sucking pest, the giant coreid bug, Anoplocnemis curvipes (Hemiptera: Coreidae), was assembled from paired end next generation sequencing reads. The A. curvipes mitochondrial genome consists of 13 protein coding genes...

  14. Neotropical genera of Naucoridae (Hemiptera: Heteroptera: Nepomorpha): new species of Placomerus and Procryphocricos from Guyana and Venezuela.

    Science.gov (United States)

    Sites, Robert W; Camacho, Jesús

    2014-01-09

    The Neotropical fauna of saucer bugs (Naucoridae) currently includes four monotypic genera. Recent extensive collecting in Venezuela has produced three new species in two of these genera. In addition, undetermined Guyanan specimens of one of the new species were found in the United States National Museum of Natural History. Thus, described here are Placomerus obscuratus n. sp. from Guyana and Venezuela with brachypterous and macropterous hindwing forms, and two species of Procryphocricos from Venezuela. Procryphocricos quiu n. sp. is described from the brachypterous forewing form and Procryphocricos macoita n. sp. from both brachypterous and macropterous forms. Previously described species also are discussed.

  15. Revalidation of Ditomotarsus hyadesi Signoret, 1885 stat. rest. (Hemiptera: Heteroptera: Acanthosomatidae with notes on its Natural History

    Directory of Open Access Journals (Sweden)

    Máriom A. Carvajal

    2015-06-01

    Full Text Available Ditomotarsus hyadesi Signoret, 1885 is revalidated. An historical analysis of the references belonging to this species is provided. Ditomotarsus gayi virens Jensen-Haarup, 1931 is proposed as new junior synonym of Ditomotarsus hyadesi. New data is provided on the biology of D. hyadesi. First observations on oviposition process are delivered and discussed. New data on sexual behavior is recorded and discussed. Ontogenic coloration changes for this species are for first time recorded, becoming the first in the Ditomotarsinae. The distribution and life history of the species are summarized.

  16. Species Specificity of Aldehyde and Fatty Acid Profiles of Four Family Group Representatives within the Insect Infraorder Pentatomomorpha (Hemiptera: Heteroptera)

    Czech Academy of Sciences Publication Activity Database

    Tomčala, Aleš; Jirošová, Anna; Žáček, Petr; Kaušková, Markéta; Hovorka, Oldřich; Koutek, Bohumír

    2017-01-01

    Roč. 14, č. 5 (2017), č. článku e1600420. ISSN 1612-1872 Institutional support: RVO:61388963 Keywords : defensive compounds * fat body * Pentatomomorpha * triacylglycerol * unsaturated aldehydes Subject RIV: CB - Analytical Chemistry, Separation OBOR OECD: Analytical chemistry Impact factor: 1.440, year: 2016

  17. Species Specificity of Aldehyde and Fatty Acid Profiles of Four Family Group Representatives within the Insect Infraorder Pentatomomorpha (Hemiptera: Heteroptera)

    Czech Academy of Sciences Publication Activity Database

    Tomčala, Aleš; Jirošová, A.; Žáček, P.; Kaušková, M.; Hovorka, O.; Koutek, B.

    2017-01-01

    Roč. 14, č. 5 (2017), č. článku e1600420. ISSN 1612-1872 Institutional support: RVO:60077344 Keywords : defensive compounds * fat body * Pentatomomorpha * triacylglycerol * unsaturated aldehydes Subject RIV: CE - Biochemistry OBOR OECD: Biochemistry and molecular biology Impact factor: 1.440, year: 2016

  18. Cydninae (Hemiptera, Heteroptera, Cydnidae) in Brazil: updated checklist, new records, and description of Tominotus ondulatus sp. nov.

    Science.gov (United States)

    Avendaño, José Mauricio; Grazia, Jocelia; Schwertner, Cristiano Feldens

    2017-10-09

    Cydninae is the largest subfamily among burrower bugs all around the world and for Brazil the genera Cyrtomenus, Dallasiellus, Ectinopus, Melanaethus, Onalips, Pangaeus, Prolobodes and Tominotus were reported with a total of 39 species, so far. Basing on the material of nine entomological collections, we updated the list to 47 species including new records and a new species, Tominotus ondulatus sp. nov. described from Restinga, Rio Grande do Sul. Distribution maps and photos of dorsal habits for several species are also provided.

  19. Pre- and post-hatch trophic egg production in the subsocial burrower bug, Canthophorus niveimarginatus (Heteroptera: Cydnidae)

    Science.gov (United States)

    Filippi, Lisa; Baba, Narumi; Inadomi, Koichi; Yanagi, Takao; Hironaka, Mantaro; Nomakuchi, Shintaro

    2009-02-01

    In recent years, three terrestrial bugs, Adomerus triguttulus and Sehirus cinctus (Cydnidae) and the closely related Parastrachia japonensis (Parastrachiidae), have been the focus of several fascinating studies because of the remarkable, extensive parental care they were found to display. This care includes egg and nymph guarding, production of trophic eggs, unfertilized, low cost eggs that are used as food by newly hatched nymphs, and progressive provisioning of the host seed. In this study, we have investigated yet a third related Asian cydnid, Canthophorus niveimarginatus, with regard to the possible occurrence of some or all of these complex traits in order to assess how widespread these maternal investment patterns are in this group of insects and to better understand the implications of their manifestations from an evolutionary context. Manipulative experiments were carried out in the lab to determine whether females provision nests. Observational and egg removal studies were carried out to determine whether trophic eggs are produced, and, if they are, their possible impact on nymphal success. The findings revealed that C. niveimarginatus does, in fact, progressively provision young, and this species also displays all of the other behaviors associated with extended parental care in subsocial insects. Moreover, unlike the other two related species, which place trophic eggs on the surface of the original egg mass, C. niveimarginatus produces both pre- and post-hatch trophic eggs. Nymphs deprived of access to post-hatch trophic eggs had significantly lower body weight and survival rate than those that fed on them. To our knowledge, this is the first time the production of both pre- and post-hatch trophic eggs has been demonstrated in insects outside the Hymenoptera. In this paper, we qualitatively and quantitatively demonstrate the provisioning behavior and patterns of trophic egg production in C. niveimarginatus. When and how trophic eggs are produced and delivered to young should have important correlations with the ecological and life history constraints under which a species has evolved. Thus, we also discuss the possible ecological and life history factors that favor the evolution of post-hatch trophic eggs.

  20. New species of Narnia (Hemiptera: Heteroptera: Coreidae: Coreinae: Anisoscelini) from Mexico and key to the known species of the genus.

    Science.gov (United States)

    Brailovsky, Harry; Barrera, Ernesto

    2013-11-13

    One new species of Narnia is described from Mexico, N. anaticula sp. nov. A key to the species is provided together with dorsal view photograph of each known species of Narnia. The genus is divided in two groups according the color of the dorsal abdominal segments.

  1. Extensive fragmentation of the X chromosome in the bed bug Cimex lectularius Linnaeus, 1758 (Heteroptera, Cimicidae: a survey across Europe

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    David Sadílek

    2013-10-01

    Full Text Available Variation in the number of chromosomes was revealed in 61 samples of Cimex lectularius Linnaeus, 1758 from the Czech Republic and other European countries, hosted on Myotis Kaup, 1829 (4 and Homo sapiens Linnaeus, 1758 (57. The karyotype of all the specimens of C. lectularius analysed contained 26 autosomes and a varying number of the sex chromosomes. The number of sex chromosomes showed extensive variation, and up to 20 fragments were recorded. Altogether, 12 distinct karyotypes were distinguished. The male karyotypes consisted of 29, 30, 31, 32, 33, 34, 35, 36, 37, 40, 42 and 47 chromosomes. The females usually exhibited the number of chromosomes which was complementary to the number established in the males from the same sample. However, 11 polymorphic samples were revealed in which the karyotypes of females and males were not complementary each other. The complement with 2n = 26+X1X2Y was found in 44% of the specimens and 57,4% samples of bed bugs studied. The karyotypes with higher chromosome numbers as well as individuals with chromosomal mosaics were usually found within the samples exhibiting particularly extensive variation between individuals, and such complements were not found within samples contaning a few or single specimen. The occurrence of chromosomal mosaics with the karyotype constitution varying between cells of single individual was observed in five specimens (4.3% from five samples. We assume that polymorphism caused by fragmentation of the X chromosome may result in meiotic problems and non-disjunction can produce unbalanced gametes and result in lowered fitness of individuals carrying higher numbers of the X chromosome fragments. This effect should be apparently enhanced with the increasing number of the fragments and this may be the reason for the observed distribution pattern of individual karyotypes in the studied samples and the rarity of individuals with extremely high chromosome numbers. The assumed lowering of the fitness of individuals carrying higher numbers of the X chromosome fragments could affect population dynamics of variable populations.

  2. Supercooling points and heat coma temperatures in four species of oceanic sea skaters of the genus Halobates (Heteroptera: Gerridae: Halobatinae)

    Czech Academy of Sciences Publication Activity Database

    Harada, T.; Takenaka, S.; Iyota, K.; Shiraki, T.; Moku, M.; Katagiri, C.; Košťál, Vladimír

    2013-01-01

    Roč. 16, č. 3 (2013), s. 219-222 ISSN 1226-8615 Institutional support: RVO:60077344 Keywords : temperature dynamics * distribution * heat tolerance Subject RIV: ED - Physiology Impact factor: 0.875, year: 2013 http://www.sciencedirect.com/science/article/pii/S1226861513000150#

  3. Burrower bugs (Heteroptera: Cydnidae) in peanut: seasonal species abundance, tillage effects, grade reduction effects, insecticide efficacy, and management.

    Science.gov (United States)

    Chapin, Jay W; Thomas, James S

    2003-08-01

    Pitfall traps placed in South Carolina peanut, Arachis hypogaea (L.), fields collected three species of burrower bugs (Cydnidae): Cyrtomenus ciliatus (Palisot de Beauvois), Sehirus cinctus cinctus (Palisot de Beauvois), and Pangaeus bilineatus (Say). Cyrtomenus ciliatus was rarely collected. Sehirus cinctus produced a nymphal cohort in peanut during May and June, probably because of abundant henbit seeds, Lamium amplexicaule L., in strip-till production systems. No S. cinctus were present during peanut pod formation. Pangaeus bilineatus was the most abundant species collected and the only species associated with peanut kernel feeding injury. Overwintering P. bilineatus adults were present in a conservation tillage peanut field before planting and two to three subsequent generations were observed. Few nymphs were collected until the R6 (full seed) growth stage. Tillage and choice of cover crop affected P. bilineatus populations. Peanuts strip-tilled into corn or wheat residue had greater P. bilineatus populations and kernel-feeding than conventional tillage or strip-tillage into rye residue. Fall tillage before planting a wheat cover crop also reduced burrower bug feeding on peanut. At-pegging (early July) granular chlorpyrifos treatments were most consistent in suppressing kernel feeding. Kernels fed on by P. bilineatus were on average 10% lighter than unfed on kernels. Pangaeus bilineatus feeding reduced peanut grade by reducing individual kernel weight, and increasing the percentage damaged kernels. Each 10% increase in kernels fed on by P. bilineatus was associated with a 1.7% decrease in total sound mature kernels, and kernel feeding levels above 30% increase the risk of damaged kernel grade penalties.

  4. Relative male and female contributions to the supercooling point of their offspring in Microvelia reticulata (Heteroptera: Vellidae)

    Czech Academy of Sciences Publication Activity Database

    Ditrich, Tomáš; Boukal S., David

    2016-01-01

    Roč. 19, č. 3 (2016), s. 222-227 ISSN 1343-8786 R&D Projects: GA ČR GAP505/10/0096 Institutional support: RVO:60077344 Keywords : animal model * cold hardiness * GLMM Subject RIV: ED - Physiology Impact factor: 1.262, year: 2016 http://onlinelibrary.wiley.com/doi/10.1111/ens.12196/abstract

  5. Factors terminating ovarian arrest in long-winged females of a flightless bug, Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

    Czech Academy of Sciences Publication Activity Database

    Socha, Radomír

    2007-01-01

    Roč. 104, č. 1 (2007), s. 15-22 ISSN 1210-5759 Institutional research plan: CEZ:AV0Z50070508 Keywords : Pyrrhocoridae * macropterus females * ovarian arrest Subject RIV: ED - Physiology Impact factor: 0.734, year: 2007

  6. Additional records and descriptions of the ant-mimetic plant bug genus Pilophorus from Thailand (Hemiptera: Heteroptera: Miridae: Phylinae: Pilophorini).

    Science.gov (United States)

    Yasunaga, Tomohide; Yamada, Kazutaka; Artchawakom, Taksin

    2014-05-09

    Eleven species of the ant-mimetic plant bug genus Pilophorus Hahn from Thailand are documented, with photographic images of live individuals. Four new species with conventional, moderate antlike shape, Pilophorus meteorus, P. saovapruki, P. subparallelus and P. suwimonae, are described. Two known Thai species, P. alstoni Schuh and P. typicus (Distant), are further reported and diagnosed. Biological information including host association is provided for P. alstoni, P. meteorus, P. saovapruki and P. typicus. A checklist of all currently known species of Pilophorus in Thailand and a key to known Thai species are included. Pilophorus typicus is reported from Singapore for the first time.

  7. Comparative Meiotic Studies in Triatoma sordida (Stål and T. guasayana Wygodzinsky & Abalos (Reduviidae, Heteroptera

    Directory of Open Access Journals (Sweden)

    P Rebagliati

    1998-05-01

    Full Text Available Triatoma sordida and T. guasayana are competent Trypanosoma cruzi vectors, with overlapping distribution areas in Argentina. Both species are morphologically similar, and their immature stages are hard to discriminate. Cytogenetic studies in the genus Triatoma reveal scarce karyotypic variations, being 2n= 20 + XY the most frequent diploid number in males. In the present work the meiotic behaviour of different Argentinian populations of T. sordida and T. guasayana has been analyzed; the meiotic karyotype of both species has also been compared. The species differ in total chromosome area and in the relative area of the sex chromosomes. These meiotic karyotypic differences constitute an additional tool for the taxonomic characterization of T. sordida and T. guasayana. The analysis of an interpopulation hybrid of T. sordida (Brazil x Argentina reveals a regular meiotic behaviour, despite the presence of heteromorphic bivalents. Our observations support the hypothesis that karyotype variations through the gain or loss of heterochromatin can not be considered as a primary mechanism of reproductive isolation in Triatoma.

  8. The 70 kDa heat shock protein assists during the repair of chilling injury in the insect, Pyrrhocoris apterus.

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    Vladimír Kostál

    Full Text Available BACKGROUND: The Pyrrhocoris apterus (Insecta: Heteroptera adults attain high levels of cold tolerance during their overwintering diapause. Non-diapause reproducing adults, however, lack the capacity to express a whole array of cold-tolerance adaptations and show relatively low survival when exposed to sub-zero temperatures. We assessed the competence of non-diapause males of P. apterus for responding to heat- and cold-stresses by up-regulation of 70 kDa heat shock proteins (Hsps and the role of Hsps during repair of heat- and cold-induced injury. PRINCIPAL FINDINGS: The fragments of P. apterus homologues of Hsp70 inducible (PaHsp70 and cognate forms (PaHsc70 were cloned and sequenced. The abundance of mRNA transcripts for the inducible form (qPCR and corresponding protein (Western blotting were significantly up-regulated in response to high and low temperature stimuli. In the cognate form, mRNA was slightly up-regulated in response to both stressors but very low or no up-regulation of protein was apparent after heat- or cold-stress, respectively. Injection of 695 bp-long Pahsp70 dsRNA (RNAi caused drastic suppression of the heat- and cold-stress-induced Pahsp70 mRNA response and the up-regulation of corresponding protein was practically eliminated. Our RNAi predictably prevented recovery from heat shock and, in addition, negatively influenced repair of chilling injuries caused by cold stress. Cold tolerance increased when the insects were first exposed to a mild heat shock, in order to trigger the up-regulation of PaHsp70, and subsequently exposed to cold stress. CONCLUSION: Our results suggest that accumulation of PaHsp70 belongs to a complex cold tolerance adaptation in the insect Pyrrhocoris apterus.

  9. Comunidades de insectos acuáticos de charcos temporarios y lagunas en la ciudad de Buenos Aires (Argentina Aquatic insect communities of temporary pools and permanent ponds in Buenos Aires City (Argentina

    Directory of Open Access Journals (Sweden)

    María S. Fontanarrosa

    2004-12-01

    Full Text Available Se realizó un estudio comparativo de la comunidad de insectos acuáticos presente en charcos temporarios de parques y plazas de la ciudad de Buenos Aires, y en lagunas permanentes de la Reserva Ecológica Costanera Sur, situada en la ribera del Río de la Plata. Se revisaron 3436 charcos y se visitaron, en 149 oportunidades, seis lagunas de la reserva. Para el conjunto de ambientes, se registraron 85 taxones pertenecientes a cinco órdenes de insectos. Los coleópteros fueron los más diversos (36 taxones, seguidos por los dípteros (27, heterópteros (17, odonatos (4 y efemerópteros (1. Se observaron altos valores de riqueza en los charcos temporarios (58 taxones y las lagunas sin vegetación flotante (64 taxones. La diversidad estimada de los charcos temporarios fue significativamente (pWe studied the community of aquatic insects inhabiting both temporary pools and permanent ponds occuring in Buenos Aires City. A total of 3436 rain pools were examined, and six permanent ponds at the "Reserva Ecológica Costanera Sur" in the Río de la Plata riverside were visited 149 times. A total of 85 taxa were recorded from both habitats, included in five orders of Insecta. The order Coleoptera showed the highest diversity values (36 taxa, followed by Diptera (27, Heteroptera (17, Odonata (4, and Ephemeroptera (1. High values of richness were observed in temporary pools (58 taxa and permanent ponds without floating vegetation (64 taxa. The diversity index for temporary ponds was significantly (p<0,05 lower than in permanent habitats.

  10. Behavioral response of the brown marmorated stink bug (Hemiptera: Pentatomidae) to semiochemicals deployed inside and outside anthropogenic structures during the overwintering period

    Science.gov (United States)

    Brown marmorated stink bug, Halyomorpha halys (Stål), is an invasive species from Asia capable of causing severe agricultural damage. It can also be a nuisance pest in the United States when it enters and exits anthropogenic overwintering sites. In recent years, pheromone lures and traps for H. haly...

  11. Damage by Tibraca limbativentris Stål (Pentatomidae) to Upland Rice Cultivated in Amazon Rainforest Region (Brazil) at Different Growth Stages.

    Science.gov (United States)

    Krinski, D; Foerster, L A

    2017-02-01

    In this study, we evaluated the damage caused in the field by Tibraca limbativentris Stål adults at different levels of infestation (0, 1, 2, and 4 stink bugs) per three rice plants during three growth stages (V8, V13, and R4 stages) of upland rice cultivated in southwestern of Pará State, Amazon Rainforest region, Brazil. Heading time (panicle exertion) was affected by T. limbativentris infestations mainly in the vegetative stage and the whiteheads percentage in treatments ranged from 18.2 to 38%. The dead hearts percentages varied between 0 and 21.5%, and the mean number of primary branches (ramifications) ranged from 5.9 ± 0.4 to 12.3 ± 0.2. The number of empty spikelets was only affected in infestations with four insects/three plants, while the quantity of filled grains per panicle was affected only when infestations occurred during the vegetative stage. The total number of spikelets (filled + empty) per panicle decreased significantly in all phenological stages, and the percentage of damage ranged from 17 to 44% among treatments. Based on the proportion of damage observed, we suggest doubling the number of insects presently used as action threshold to 2 and 4 stink bugs per 15 stalks sampled for the vegetative stage, and of 1 or 2 stink bugs per 15 stalks sampled at the beginning of reproductive stage (R3/R4). Also, the field should be monitored during the entire vegetative stage, since most damage was observed in this phenological stage.

  12. Predicting temporal shifts in the spring occurrence of overwintered Scotinophara lurida (Hemiptera: Pentatomidae) and rice phenology in Korea with climate change

    Science.gov (United States)

    Lee, Hyoseok; Kang, Wee Soo; Ahn, Mun Il; Cho, Kijong; Lee, Joon-Ho

    2016-01-01

    Climate change could shift the phenology of insects and plants and alter their linkage in space and time. We examined the synchrony of rice and its insect pest, Scotinophara lurida (Burmeister), under the representative concentration pathways (RCP) 8.5 climate change scenario by comparing the mean spring immigration time of overwintered S. lurida with the mean rice transplanting times in Korea. The immigration time of S. lurida was estimated using an overwintered adult flight model. The rice transplanting time of three cultivars (early, medium, and medium-late maturing) was estimated by forecasting the optimal cultivation period using leaf appearance and final leaf number models. A temperature increase significantly advanced the 99 % immigration time of S. lurida from Julian day 192.1 in the 2000s to 178.4 in the 2050s and 163.1 in the 2090s. In contrast, rice transplanting time was significantly delayed in the early-maturing cultivar from day 141.2 in the 2000s to 166.7 in the 2050s and 190.6 in the 2090s, in the medium-maturing cultivar from day 130.6 in the 2000s to 156.6 in the 2050s and 184.7 in the 2090s, and in the medium-late maturing cultivar from day 128.5 in 2000s to 152.9 in the 2050s and 182.3 in the 2090s. These simulation results predict a significant future phenological asynchrony between S. lurida and rice in Korea.

  13. Predation and parasitism by native and exotic natural enemies of Halyomorpha halys (Hemiptera: Pentatomidae) eggs augmented with semiochemicals and differing host stimuli

    Science.gov (United States)

    The brown marmorated stink bug, or Halyomorpha halys, is an invasive species in the United States, and causes severe agricultural damage to a variety of crops. Prior research with other stink bugs has shown that various stimuli, including the aggregation pheromone of a pest can be an important kairo...

  14. Biological aspects and predatory capacity of Podisus nigrispinus (Dallas (Hemiptera: Pentatomidae fed on Alabama argillacea (Hübner (Lepidoptera: Noctuidae reared on cotton genotypes

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    Santos Terezinha Monteiro dos

    2002-01-01

    Full Text Available Host plants may influence indirectly biological characteristics of predators, on a positive or negative way, poiting out the importance of studies evaluating the effect of cultivars on the third trophic level. This study evaluates the biological aspects and predatory capacity of Podisus nigrispinus adults fed Alabama argillacea larvae reared on cotton genotypes. The predator was fed daily with fourth instar larvae reared on leaves of the following genotypes CNPA Precoce 1 (hirsute, CNPA 9211-31 (high gossypol level, CNPA 9211-41 (medium gossypol level and GL2 GL3 (gossypol glandless. The pre-oviposition, oviposition and post-oviposition periods and the oviposition capacity of P. nigripinus were not affected when preyed on cotton leafworms reared on the listed cotton genotypes. Mean weight of predator females was higher (126.2 mg when they fed on A. argillacea reared on GL2 GL3 cotton leaves, in comparison to the observed weight (96.2mg of P. nigripinus females fed on larvae reared on CNPA 9211-41. Longevity of P. nigrispinus ranged 30.7 to 31.5 days for females and 38.0 to 66.3 days for males. P. nigrispinus females preyed 125.2 to 184.0 A. argillacea larvae during its adult stage, while adult males preyed 135.7 to 205.0 leafworms. Using plant resistance in association with P. nigrispinus is viable to control A. argillacea, because resistant genotypes do not influence negatively the biological characteristics of the predator.

  15. Quantitative and qualitative damage caused by Oebalus poecilus (Hemiptera, Pentatomidae to upland rice cultivated in new agricultural frontier of the Amazon rainforest (Brazil

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    Diones Krinski

    Full Text Available ABSTRACT Oebalus poecilus (Dallas 1851 is one of the stink bug species of great economic importance for rice producers in Brazil of irrigated, flood and upland cropping systems. These pentatomids are known as stink bugs of panicles, because both nymphs and adults feed mainly on panicles. Stink bug attacks result in pecky (spots seeds, lower mass, germinative reduction and deformed grains. Bearing these factors in mind, the aim of this study was to evaluate the quantitative and qualitative losses in commercial cultivars of upland rice (Cambará variety, submitted to different population levels of stink bugs of panicles, O. poecilus, at different reproductive growth stages. The results show that in upland rice (Cambará variety, the rice grains are susceptible to quantitative (number and weight and qualitative (pecky, atrophy, chalky and broken grains damage during all panicle development. However, when the insects feed during anthesis/caryopsis and milky stage cause significantly greater percentage of empty grains (up to 83% than when they feed of grains during later phases of panicle development. This characteristic was also observed for the reduction in grain weight. This information may benefit producers and other researchers, allowing them to focus on the monitoring efforts of O. poecilus in most susceptible phases of the attack of this insect. This will enable decision-making about what control measures should be taken, and when, in order to control stink bugs of panicles.

  16. Record of Edessa scabriventris Stål (Hemiptera: Pentatomidae) associated to Eugenia uniflora (Brazilian-Cherry) and Psidium guajava (Guava) (Myrtaceae), in north-northeastern Brazil.

    Science.gov (United States)

    Lima, Mauricio S; Fernandes, José A M; Lima, Iracilda M M

    2010-01-01

    This study reports for the first time Edessa scabriventris Stål on Eugenia uniflora (Brazilian-cherry) and on Psidium guajava (guava) (Myrtaceae), fruit trees with economic value. Its geographic distribution is extended with records for the states of Alagoas (Maceió Municipality 35°45'11.16''W; 9°40'18.52''S) and Pará (Belém Municipality 48°28'14.65''W; 1°26'14.83''S), north-northeastern Brazil.

  17. A case of extensive congregation of Man-faced Stink Bug Catacanthus incarnatus (Drury (Hemiptera: Pentatomidae together with new host records from western Maharashtra, India

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    S.H. Waghmare

    2015-06-01

    Full Text Available A study was conducted on the congregation of Stink Bug Catacanthus incarnatus. For the first time this bug was reported at high altitude i.e., 792m. The study reports the congregation of C. incarnatus on four new host plant species viz., Ixora brachiata, Memecylon umbellatum, Glochidion ellipticum and Olea dioica. More infestation was observed on I. brachiata. 

  18. Eficiência do Cuidado Maternal de Antiteuchus sepulcralis (Fabricius) (Hemiptera: Pentatomidae) Contra Inimigos Naturais do Estágio de Ovo

    OpenAIRE

    SANTOS, ADÃO V.; ALBUQUERQUE, GILBERTO S.

    2001-01-01

    Para avaliar os benefícios do cuidado maternal em Antiteuchus sepulcralis (Fabricius), foram realizados estudos de campo, em árvores da planta hospedeira Hibiscus pernambucensis Arruda (Malvaceae). Utilizaram-se três tipos de gaiolas de exclusão: sem o acesso de inimigos naturais (=controle); acesso apenas a parasitóides e acesso a todos os inimigos naturais, além de um tratamento onde as posturas foram avaliadas sem gaiola. Para cada tratamento, usou-se uma condição onde a fêmea protegia a p...

  19. Milkweed (Gentianales: Apocynaceae): A farmscape resource for increasing parasitism of stink bugs (Hemiptera: Pentatomidae) and providing nectar to insect pollinators and monarch butterflies

    Science.gov (United States)

    In peanut-cotton farmscapes in Georgia, stink bugs, i.e., Nezara viridula (L.), Euschistus servus (Say), and Chinavia hilaris (Say), develop in peanut and then disperse at the crop-to-crop interface to feed on fruit in cotton. The main objective of this study was to examine the influence of a habit...

  20. Diversity of Ephemeroptera (Insecta of the Serra da Mantiqueira and Serra do Mar, southeastern Brazil Diversidade de Ephemeroptera (Insecta da Serra da Mantiqueira e Serra do Mar, região Sudeste do Brasil

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    Ana Emilia Siegloch

    2012-12-01

    Full Text Available The aim of this study was to inventory the mayfly fauna, based on nymphal and alate stages, in Serra da Mantiqueira and in Serra do Mar, São Paulo State, as well as to present information about habitats used by the genera. Nymphs were collected in several streams and mesohabitats with a Surber sampler and the winged stages with light attraction methods, entomological nets, and Malaise traps. In all, eight families and 33 genera were recorded, representing a very significant portion of the Brazilian fauna (80% of families and 49% of genera. Furthermore, it was possible to identify 11 species, of which two are new records for the state: Tricorythodes santarita Traver and Caenis reissi Malzacher. Despite the high diversity recorded, the accumulation curves presented an ascending form, indicating an increase in the number of genera with additional sampling effort. The high richness found in these areas are in agreement with the high biodiversity of the Atlantic Forest biome and the sampling effort employed, which included the use of different methods, the collection of both nymphs and winged stages, and the sampling of a large area with diverse streams and habitats.O objetivo do trabalho foi inventariar a fauna de Ephemeroptera, com base em ninfas e estágios alados, da Serra da Mantiqueira e Serra do Mar no estado de São Paulo, bem como gerar informações sobre os hábitats utilizados pelos gêneros registrados. As ninfas foram colecionadas em diversos riachos e mesohábitats com amostrador de Surber e os alados por métodos de atração luminosa, rede entomológica e armadilha de Malaise. Considerando o esforço conjunto de todos os métodos de coleta foram registradas oito famílias e 33 gêneros, o que representa uma porção bastante significativa da fauna brasileira (80% das famílias e 49% dos gêneros. Além disso, foi possível identificar 11 espécies, das quais Tricorythodes santarita Traver e Caenis reissi Malzacher são novos registros para o estado. Apesar da alta diversidade registrada, as curva de acumulação de gêneros não atingiram a assíntota, indicando um aumento no número de gêneros com o incremento do esforço amostral. A alta riqueza encontrada nesse estudo está de acordo com a grande biodiversidade do bioma Mata Atlântica e ao esforço amostral empregado, que abrangeu o uso de diferentes métodos de coleta, coleta de ninfas e estágios alados e amostragem de uma grande área com diversos riachos e habitats.

  1. Culicidae (Insecta: Diptera em área de Floresta Atlântica, no Estado do Paraná, Brasil = Culicidae (Insecta: Diptera in areas of Atlantic Forest, Paraná State, Brazil

    Directory of Open Access Journals (Sweden)

    Adriana Félix do Anjos

    2008-01-01

    Full Text Available A alteração da paisagem natural pode gerar mudanças que favorecem odesenvolvimento e proliferação de determinadas espécies de Culicidae, em detrimento de outras que se deslocam para outros locais ou são extintas. Baseando-se nestas mudanças, algumas espécies podem ser utilizadas como bioindicadores do grau de degradação ambiental. O presente estudo tem como objetivo analisar a composição e riqueza deCulicidae, em dois ambientes em área de Floresta Atlântica, e avaliar se as espécies encontradas indicam o grau de preservação dos fragmentos estudados. As coletas foram realizadas em dois ambientes, denominados Carvalho e Trilha, em área de Floresta Atlântica(Mananciais da Serra, no Estado do Paraná - Brasil, nos meses de dezembro/2002 a maio/2003, utilizando-se um aspirador elétrico manual. Foram identificadas 48 espécies de 636 espécimes de Culicidae. A composição taxonômica e riqueza das espécies de Culicidaediferenciaram-se entre os ambientes estudados, provavelmente, influenciadas pelo estado de preservação dos fragmentos florestais. Os maiores valores de riqueza observados no Carvalho, assim como o predomínio das espécies da tribo Sabethini e Kerteszia sugeremreduzida ação antrópica neste fragmento florestal. De modo contrário, a composição das espécies e os menores valores de riqueza observadas na Trilha indicam grau alto de degradação ambiental.Modifications in the landscape can lead to the development and proliferation of some Culicidae species, in detriment of others. As a result, some species may be forced to move to other places or become locally extinct. Based on these changes, some species can beused as bioindicators of environmental degradation. The aim of this study was to assess Culicidae composition and richness in two Atlantic Forest sites (Carvalho and Trilha; State of Paraná, Brazil, and to evaluate whether they can be used as indicators of environmental degradation of these sites. Culicidae samplings were performed between December 2002 and May 2003, using a manual electric aspirator. The study identified 48 species and 636 specimens of Culicidae. Species composition and species richness of Culicidae differed between the two studied forest fragments, possibly as a result of the varying conservation levels of theses sites. The higher values of richness observed in Carvalho, as well as the predominance of species from the Sabethini tribe and Kerteszia species, indicate reduced human interference in this forest fragment. In contrast, species composition and reduced richness in Trilha indicate a high level of environmental degradation.

  2. New teratological examples in Neotropical Staphylinidae (Insecta: Coleoptera, with a compilation of previous teratological records Nuevos ejemplos teratológicos en Staphylinidae neotropicales (Insecta: Coleoptera, con una compilación de registros teratológicos previos

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    Julieta Asiain

    2009-04-01

    Full Text Available Teratology is the study of malformations that affect various organisms and may cause taxonomic confusion. The goal of this work is to compile the previously published information about malformations in species of Staphylinidae, to describe 10 teratological cases that have not been previously recorded in neotropical species of this family, and to point out the high frequency of these malformations in the studied specimens. The previously recorded cases were obtained from review of 13 papers, and the studied specimens were obtained on loan from several collections. In total, 43 teratological cases were compiled for Staphylinidae, belonging to 39 species from 8 subfamilies. Ten teratological cases are described for specimens from Belonuchus, Agrodes and Plochionocerus. One of them occurs in B. apiciventris, 2 in A. elegans, 3 in P. humeralis, 3 in P. fulgens and 1 in P. splendens. Most of the anomalies affect the antennae (7 cases, but teratologies that affect mandibles (1 case, midlegs (1 case and pronotum (1 case are also presented.Teratología es el estudio de las malformaciones que afectan a distintos organismos y que pueden causar confusiones taxonómicas. El objetivo del presente estudio es recopilar la información previamente publicada sobre teratologías en especies de Staphylinidae, dar a conocer 10 casos de anomalías presentes en especies neotropicales de esta familia que no han sido reportadas con anterioridad, así como resaltar la alta frecuencia de estas deformaciones en los organismos estudiados. Los casos previamente reportados se obtuvieron de la revisión de 13 trabajos, mientras que los ejemplares estudiados proceden del préstamo de organismos de distintas colecciones. Se recopiló un total de 43 casos teratológicos para Staphylinidae, pertenecientes a 39 especies de ocho subfamilias. Se describen 10 casos teratológicos en ejemplares de Agrodes, Plochionocerus y Belonuchus, 2 de ellos se presentaron en A. elegans, 1 en B. apiciventris, 3 en P. humeralis, 3 en P. fulgens y 1 en P. splendens. La mayoría de las anomalías afectan las antenas (7 casos, pero también se presentan teratologías que afectan las mandíbulas (1 caso, mesopatas (1 caso y pronoto (1 caso.

  3. Historical biogeography of the Fanniidae (Insecta, Diptera: A commentary on the age of the family Biogeografia histórica de Fanniidae (Insecta, Diptera: Un comentario sobre la edad de la familia

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    PETER LOWENBERG-NETO

    2012-09-01

    Full Text Available In a study on Fanniidae biogeography, Dominguez & Roig-Juñent (2011 argued that the family had a Pangeic origin, Late Jurassic/early Cretaceous (~146 Ma. However, recent literature on Diptera supports that Schizophora radiation occurred during Cenozoic. Fanniidae is a widespread taxon and it was interpreted under the maximum vicariance paradigm; the consequence was an analysis with no alternative hypothesis, but Pangeic origin. We verified that Fanniidae historical narrative was incongruent with the Gondwana sequential break-up. A second analysis, assuming the Fanniidae origin during early Paleocene (65 Ma, showed congruence with recent geological events and with the Muscidae diversification, a closely related Muscoidea family. Our hypothesis suggests that the Fanniidae originated in Paleogene and they were affected by few events of vicariance and several expansions during Cenozoic.En un estudio sobre biogeografía de Fanniidae, Domínguez & Roig-Juñent (2011 argumentaron que la familia era de origen Pangeico, Jurásico superior/Cretáceo inferior (~146 Ma. Sin embargo, literatura reciente sobre Diptera, confirma que la radiación de Schizophora ocurrió durante el Cenozoico. Fanniidae es un taxón ampliamente distribuido y fue interpretado bajo el paradigma de máxima vicarianza; la consecuencia, fue un análisis sin hipótesis alternativas, pero de origen pangeico. Nosotros verificamos que la narrativa histórica de Fanniidae es incongruente con la quiebra secuencial de Gondwana. Un segundo análisis, asumiendo el origen de Fanniidae durante el Paleoceno inferior (65 Ma, mostró congruencia con eventos geológicos recientes y con la diversificación de Muscidae, una familia de Muscoidea próximamente relacionada. Nuestra hipótesis sugiere que Fanniidae se originó en el Paleógeno y fueron afectados por pocos eventos de vicarianza y muchas expansiones durante el Cenozoico.

  4. Chewing lice (Insecta: Phthiraptera) from estrildid finches (Aves: Passeriformes: Estrildidae) and louse-flies (Insecta: Diptera: Hippoboscidae) from birds in Senegal, with descriptions of three new species of the genus Brueelia

    Czech Academy of Sciences Publication Activity Database

    Sychra, O.; Literák, I.; Najer, T.; Čapek, Miroslav; Koubek, Petr; Procházka, Petr

    2010-01-01

    Roč. 2714, - (2010), s. 59-68 ISSN 1175-5326 R&D Projects: GA AV ČR IAA6093404; GA AV ČR IAA601690901; GA MŠk LC06073 Institutional research plan: CEZ:AV0Z60930519 Keywords : chewing lice * louse-flies * Passeriformes * Senegal Subject RIV: EG - Zoology Impact factor: 0.853, year: 2010 http://www.mapress.com/zootaxa/2010/f/zt02714p068.pdf

  5. Superfamilia Scarabaeoidea (Insecta: Coleoptera como elemento bioindicador de perturbación antropogénica en un parque nacional amazónico Scarabaeoidea superfamily (Insecta: Coleoptera as a bioindicator element of anthropogenic disturbance in an amazon national park

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    Samuel Eduardo Otavo

    2013-06-01

    Full Text Available Diferentes grupos de insectos se consideran importantes elementos bioindicadores de la calidad de los ecosistemas, los coleópteros son hoy en día uno de los grupos más reconocidos y utilizados para el monitoreo y establecimiento de áreas protegidas. Se evaluó el uso de la superfamilia Scarabaeoidea como bioindicador del grado de perturbación antropogénica de los bosques húmedos amazónicos. En tres niveles de perturbación (alta, media y baja se establecieron 12 transectos, utilizando tres trampas de interceptación, dos trampas de luz, tres trampas de caída, cuatro trampas de botella y captura manual. Se capturaron 593 individuos, 92 especies, 44 géneros y 7 familias. Las familias con el mayor número de individuos y especies fueron Scarabaeidae (n=232, 27 spp. y Dynastidae (n=161, 26 spp.. Las especies más abundantes fueron: Ateuchus sp., Cyclocephala verticalis, Ceratocanthus amazonicus y Chaetodus asuai. El número de especies e individuos fue mayor a medida que el gradiente de perturbación aumentó. Dynastidae presenta el mayor número de especies exclusivas mientras Scarabaeidae comparte la mayoría. Diez especies fueron registradas en los tres bosques, 26 en dos y 56 en solo uno. De las especies más abundantes C. asuai muestra una reducción significativa del número de individuos con el aumento de la perturbación, mientras se observa una relación inversa para C. verticalis. Se discute la utilización de la riqueza y la diversidad como indicadores de perturbación, mientras se ratifica la abundancia de ciertos táxones como una mejor variable a medir.Insects have been recognized to be important indicators of the quality elements of ecosystems, among others, because of their rapid response to environmental variability and ease cost-effective capture. In this work we evaluated whether beetles of the Scarabaeoidea superfamily may be used as bioindicators of anthropogenic disturbance of Amazonian terra firme rain forests, in order to provide guidelines for monitoring strategies of the Amacayacu National Park. We considered three different levels of anthropogenic disturbance (i.e. low, medium, high in 12 transects (four in each intervention level, and caught all beetle species of this superfamily. Three interception traps, two light traps, three pitfalls and four bottle fruit traps were used per transect, as well as manual catch. In total, 593 individuals belonging to 92 species, 44 genera and seven families were collected. Scarabaeidae (n=232, 27 spp. and Dynastidae (n=161, 26 spp. were the families with the highest number of individuals and species, while Aphodiidae, Cetoniidae and Geotrupidae exhibited the lowest. The most abundant species per family were Ateuchus sp. (33.2% from Scarabaeidae, Cyclocephala verticalis (55.9% from Dynastidae, Astaena sp. (75.8% from Melolonthidae, Ceratocanthus amazonicus (66.7% from Ceratocanthidae y Chaetodus asuai (96.8% from Hybosoridae. Results showed that the number of species and individuals increased with the anthropogenic disturbance. The Margalef and Shannon indexes also revealed that the highest richness and equity occurred in the high-disturbed site, respectively. Dynastidae exhibited the highest number of exclusive species per gradient, while Scarabaeidae shared most of its species. Ten species were recorded in the three disturbance levels, 26 species in two and 56 species were exclusive to one level. The most abundant species Chaetodus asuai (Hybosoridae presented a significant decrease in the number of individuals as disturbance increased, while an inverse relationship occurred for C. verticalis(Dynastidae. For Astaena sp. (Melolonthidae and Ligyrus gyas (Dynastidae a high number of individuals was recorded and were exclusive for one forest site (low and high disturbed forest, respectively. The complete superfamily cannot be used like a single bioindicator element because it displays, in a specific level, very different behaviors in each disturbance condition. We discuss the use of richness and diversity as indicators of disturbance, while we highlight abundance of particular taxa as a better metric for disturbance.

  6. Nuevos registros de piojos (Insecta: Phthiraptera) en aves domésticas y ornamentales en Chile New records of lice (Insecta: Phthiraptera) from domestic and ornamental birds from Chile

    OpenAIRE

    D González-Acuña; J Lara; A Cicchino

    2009-01-01

    Por medio del examen del plumaje de aves domésticas y ornamentales en Chile se reconfirma la presencia de los phthiraptera Menopon gallinae, Goniodes gigas, Goniocotes gallinae y Menacanthus stramineus en la gallina doméstica, Gallus gallus domesticus y se registra además por primera vez en el país la especie Menacanthus pallidulus. En aves ornamentales se registran en pavo, Meleagris gallipavo, la especie M. stramineus, en pavo real, Pavo cristatus las especies Goniodes pavonis y Amrysidea m...

  7. Atratividade de diferentes iscas e sua relação com as fases de desenvolvimento ovariano em calliphoridae e sarcophagidae (insecta, diptera Attractiveness of differents baits and its relation with ovarian development fases in Calliphoridae ano Sarcophagidae (Insecta, Diptera

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    José Mario d'Almeida

    1994-01-01

    Full Text Available Attrativeness of differents baits (fish, faeces and banana upon ovarian development fases of Calliphoridae and Sarcophagidae was evaluated. The insects were captured in Distrito Federal (urban area and Rio de Janeiro city (beach, zoological garden, urban area and Tijuca forest. The most frequent species captured were: Calliphoridae - Chrysomya megacephala (Fabricius, 1794 78,9% and Chtysomya puloria (Wiedemann, 1818 5,4% - and Sarcophagidae - Sarcophagula Wulp, 1887 2,3% and Peckya chrysostoma (Wiedemann. 1830 2,2%. Fish was more attractive to females of Calliphoridae flies in intense ovarian vitelogenesis, although banana atracted more flies with mature eggs. Faeces and fish were more atractive for Sarcophagidae in the beggining of vitelogenesis.

  8. Associations between chewing lice (Insecta, Phthiraptera and albatrosses and petrels (Aves, Procellariiformes collected in Brazil Associações entre malófagos (Insecta, Phthiraptera e albatrozes e petréis (Aves, Procellariiformes capturados no Brasil

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    Michel P. Valim

    2006-12-01

    Full Text Available Chewing lice were searched on 197 skins of 28 species of procellariiform birds collected in Brazil. A total of 38 species of lice were found on 112 skins belonging to 22 bird species. The lice were slide-mounted and identified. A list of lice species found and their host species is given and some host-louse associations are discussed under an evolutionary perspective.Malófagos foram procurados em 197 peles de 28 espécies de aves Procellariiformes capturadas no Brasil. Um total de 38 espécies de piolhos foram encontradas em 112 peles pertencentes a 22 espécies de aves. Os piolhos foram montados em lâminas e identificados. Uma lista com as espécies de piolhos encontradas e seus hospedeiros é dada, além de algumas associações entre os piolhos e as aves serem discutidas sob uma perspectiva evolutiva.

  9. A diversidade inventarial de Coleoptera (Insecta em uma paisagem antropizada do Bioma Araucária The inventory diversity of Coleoptera (Insecta of an anthropized landscape in the Biome Araucaria

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    Norma G. Ganho

    2005-12-01

    Full Text Available Como parte do Projeto PROVIVE, foram analisadas a riqueza de espécies, a composição taxonômica, a proporção de espécies raras e a constância taxonômica ao nível de família relacionada à riqueza de espécies, em comunidades de Coleoptera, em Vila Velha, Ponta Grossa, Paraná. Os dados foram obtidos a partir de coletas através de armadilha malaise no estrato do sub-bosque de cinco áreas com diferentes graus de intervenção antrópica, de setembro de 1999 a agosto de 2000. As 52 semanas de amostragem nas cinco áreas resultaram na coleta de 10.822 indivíduos de 1659 espécies. Todas as áreas apresentaram alta riqueza de espécies e diversidade, como indicado por vários índices. A área em estágio mais avançado de sucessão vegetal foi menos rica do que aquelas em estágio inicial/intermediária. De acordo com diferentes estimadores de riqueza de espécies, o número de espécies coletadas poderia aumentar de 22-123% com o aumento do esforço de coleta. As áreas menos conservadas foram mais ricas em espécies raras ("singletons", "doubletons" e únicas do que as mais conservadas. Nas cinco áreas houve uma constância taxonômica entre as famílias mais ricas (Curculionidae, Chrysomelidae, Cerambycidae, Staphylinidae, Mordelidae, Elateridae, Scarabaeidae, Coccinellidae e Tenebrionidae envolvendo 60% do total de espécies, como observado para a abundância de indivíduos. A existência de um padrão de constância taxonômica de famílias, quando considerados 60% da riqueza de espécies e/ou de abundância de indivíduos por local, poderá tornar mais fácil e rápido o estudo de comunidades de Coleoptera, habilitando a ordem a ser um táxon indicador de condições ambientais de áreas florestadas.The species richness, taxonomic composition, rare species, and taxonomic constancy at family level were studied in communities of Coleoptera in Vila Velha, Ponta Grossa, Paraná, as part of PROVIVE project. The data were gathered through malaise traps in the understory stratum of five sites with different floristic conditions product of anthropogenic effects, from September/1999 to August/2000. The 52 weeks sampling in the five sites produced 10,822 specimens of 1,659 species. All areas present high species richness and high diversity as indicated by various indices. The area in advanced condition of vegetation succession was less rich than ones in early/middle stage. According to different species richness estimators, the number of observed species could be increased by 22-123% if more time colleting effort had been made. The early successional stage areas were richer in rare species (singletons, doubletons and uniques than the more preserved ones. In the five areas there were a taxonomic constancy among the richest families (Curculionidae, Chrysomelidae, Cerambycidae, Staphylinidae, Mordelidae, Elateridae, Scarabaeidae, Coccinellidae and Tenebrionidae involving 60% of the total species as observed with the specimens abundance. If the existence of this pattern is confirmed, it will be easier and faster to study Coleoptera communities and soon apply this order as a forest environmental indicator taxon.

  10. OCCURRENCE OF PHYTOPHAGOUS SCARABAEIDAE (INSECTA: COLEOPTERA LARVAE IN DIFFERENT SUCCESSION CROP SYSTEMS OCORRÊNCIA DE LARVAS DE SCARABAEIDAE FITÓFAGOS (INSECTA: COLEOPTERA EM DIFERENTES SISTEMAS DE SUCESSÃO DE CULTURAS

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    Elison Floriano Tiago

    2011-01-01

    Full Text Available Information about Scarabaeidae phytophagous are still rare for the Center-West Region of Brazil. Thus, in the experimental area of the Universidade Estadual do Mato Grosso do Sul, in Aquidauana, Mato Grosso do Sul State, Brazil, the succession of soybean, maize, and forage turnip was sowed from February 2004 to October 2005, when the larvae population dynamics was evaluated. From October 2006 to May 2008, nine succession systems were sowed, the larval density evaluated, and the identification of the current species was carried out. When the larvae were sampled for soybean, in January 2005 and 2006, the highest densities were found in the field (3.44 larvae m-2 and 4.19 larvae m-2, respectively. The forage turnip, sampled in October 2004 and 2005, showed the lowest densities (0.03 larvae m-2 and 0.02 larvae m-2, respectively. In the crop succession systems, the following species were found: Liogenys fuscus Blanchard (highest amount, Liogenys bidenticeps Moser, Anomala testaceipennis Blanchard, Paranomala inconstans (Burmeister, Geniates borelli Camerano, Cyclocephala forsteri Endrodi, Cyclocephala verticalis Burmeister, and Phyllophaga sp. For the succession systems with maize sowed at the traditional season, the highest larval densities were found, specially favoring the development of L. fuscus, while the succession systems with soybean, maize, and under fallow, and soybean, crotalaria, and forage turnip, as well as the three systems with cotton-plant, did not favor it.

    KEY-WORDS: Zea mays; Glycine max; Raphanus sativus; soil pests; larvae density.Informações sobre Scarabaeidae fitófagos são ainda escassas para a região Centro-Oeste do Brasil. Por esta razão, na área experimental da Universidade Estadual do Mato Grosso do Sul, em Aquidauana (MS, foi semeada, de fevereiro de 2004 a outubro de 2005, a sucessão de culturas soja, milho e nabo forrageiro, onde se avaliou a dinâmica da densidade larval. De outubro de 2006 a maio de 2008, foram realizadas semeaduras de nove sistemas de sucessão de culturas, sendo avaliadas as densidades larvais e identificadas as espécies ocorrentes. Quando se amostraram as larvas na cultura da soja, em janeiro de 2005 e 2006, encontraram-se as maiores densidades (3,44 larvas m-2 e 4,19 larvas m-2, respectivamente, no campo. O nabo forrageiro, amostrado em outubro de 2004 e 2005, apresentou as menores densidades (0,03 larvas m-2 e 0,02 larvas m-2, respectivamente. Nos sistemas de sucessão de culturas, as espécies encontradas foram Liogenys fuscus Blanchard, Liogenys bidenticeps Moser, Anomala testaceipennis Blanchard, Paranomala inconstans (Burmeister, Geniates borelli Camerano, Cyclocephala forsteri Endrodi, Cyclocephala verticalis Burmeister e Phyllophaga sp, sendo que  L. fuscus foi coletada em maior quantidade. Para os sistemas de sucessão que possuem o milho semeado na safra, foram encontradas as maiores densidades larvais, indicando que esta cultura favorece o desenvolvimento, principalmente, de L. fuscus, enquanto os sistemas de sucessão com soja, milho e pousio, e soja, crotalária e nabo forrageiro, bem como os três sistemas com o algodoeiro, lhe são desfavoráveis.

    PALAVRAS-CHAVE: Zea mays; Glycine max; Raphanus sativus; pragas do solo; densidade de larvas.

  11. Occurrence, biology and behavior of Liogenys fuscus Blanchard (Insecta, Coleoptera, Scarabaeidae in Aquidauana, Mato Grosso do Sul, Brazil Ocorrência, biologia e comportamento de Liogenys fuscus Blanchard (Insecta, Coleoptera, Scarabaeidae em Aquidauana, Mato Grosso do Sul, Brasil

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    Sérgio Roberto Rodrigues

    2008-01-01

    Full Text Available Due to the importance of some Pleurosticti Scarabaeidae as agricultural pests allied to information absence on the species that occur in Brazilian Central-West region, on studies occurrence, biology and behavior on this group of scarabs were conducted. Biology and behavioral studies started with Liogenys fuscus Blanchard, 1850 (Melolonthinae, a very common species and were developed in Aquidauana, Mato Grosso do Sul. Adult beetles were collected from light traps from February 2005 to January 2007, at the experimental farm of the Universidade Estadual de Mato Grosso do Sul in Aquidauana (UEMS. In the laboratory adults were placed in plastic containers with soil with sprouts of Brachiaria decumbens Stapf (Poaceae. Eggs were transferred to a climatized chamber at 26 ± 1º C with a 12hourlight, 12hour darkness photoperiod cycle. Adult flight activity occurred in August and in September to December from 06:00 pm to 06:00 am, with the largest number of individuals flying from 07:00 to 10:00 pm. Eggs measured 1 x 1.5 mm and were laid individually or in groups in soil chambers; eggs were initially white and became yellow near hatching. The embryonic period lasted 14.3 days; first, second and third instars lasted 28.5, 48.8, and 68.2 days, respectively. The prepupal period lasted 120.2 days and the prepupa stayed inactive in soil. The mean duration of pupal stage was 27.5 days and the mean longevity of adults was 23.6 days. In laboratory the calling behavior between males and females was observed; copulation lasted, in mean, 25 minutes.Devido à importância de alguns Scarabaeidae Pleurosticti como causadores de danos à agricultura, aliada à ausência de informações sobre as espécies que ocorrem na região Centro Oeste, foram desenvolvidos estudos sobre a ocorrência, biologia e comportamento sobre este grupo de escarabeídeos. Foram iniciados com Liogenys fuscus Blanchard, 1850 (Melolonthinae, espécie muito comum em Aquidauana, Mato Grosso do Sul, Brasil. Na fazenda experimental da Universidade Estadual de Mato Grosso do Sul (UEMS, campus de Aquidauana, foi instalada diariamente, armadilha luminosa, de fevereiro de 2005 a janeiro de 2007 para coleta dos adultos. Os adultos coletados foram encaminhados para laboratório e acondicionados em caixas de plástico, contendo solo e mudas de Brachiaria decumbens Stapf (Poaceae. Foi possível obter ovos e realizar os estudos de biologia, em câmara climatizada a 26 ± 1º C e fotofase de 12 horas. Os adultos revoaram entre agosto e setembro a dezembro nos dois anos de estudos, nos horários das 18h00 às 6h00, em maior quantidade das 19h00 às 22h00. Os ovos, de 1,5 x 1,0 mm, foram depositados no solo individualmente ou agrupados em câmaras; possuem coloração branca e quando estão próximos da eclosão adquirem cor amarela. O período embrionário durou 14,3 dias, o primeiro, segundo e terceiro instares duraram 28,5, 48,8 e 68,2 dias respectivamente. O período de prépupa, que permaneceu inativa no solo, durou 120,2 dias. A fase de pupa durou em média de 27,5 dias e os adultos apresentaram longevidade média de 23,6 dias. Em laboratório foi observado comportamento de chamamento entre machos e fêmeas e a cópula durou em média 25 minutos.

  12. First Record Of The Order Mecoptera (Insecta) For The Gorgona Island (Colombia), With The Description Of A New Species.

    Science.gov (United States)

    Ascuntar-Osnas, Oscar; Domínguez, Diana Torres; Ulloa, Patricia Chacón De; Machado, Renato Jose Pires

    2016-03-30

    During a review of material from the project "Assessment of the current status of the faunistic conservation objects from the Gorgona Island: a holistic approach to the ecological evaluation of the Gorgona Natural National Park", conducted 2010‒2011, a male specimen of Pazius Navás, 1913 (Mecoptera: Bittacidae) was found. The genus had been previously recorded in Colombia in the Amazonas and Cundinamarca departments. The specimen described here differs from other species of Pazius by the absence of the aedeagus ventral process, the presence of seven short dorsal spines at the epandrium and shape of the ventral process. This finding represents the first record of the order Mecoptera for Gorgona Island, a new species of Pazius, and the expansion of the genus distribution in Colombia. A detailed morphological description of Pazius gorgonensis n. sp. and an identification key for species of the genus are presented.

  13. Seven new species of Loneura Navás (Insecta: Psocodea: 'Psocoptera': Ptiloneuridae) from Valle del Cauca, Colombia.

    Science.gov (United States)

    Nieto, Julián Alexander Mendivil; Aldrete, Alfonso Neri García; Obando, Ranulfo González

    2017-02-06

    Seven species of Loneura from natural areas of Valle del Cauca, Colombia, are described and illustrated. The female of L. andina is described for the first time. Two additional species, known only from the National Natural Park Gorgona (Cauca), are also recorded in Valle del Cauca. The new species are assigned to the infrageneric groups known in the genus. An identification key to males of Loneura is included.

  14. Diversidad de Psocoptera (Insecta: Psocodea en el Parque Nacional Natural Gorgona (Océano Pacífico, Colombia

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    Fabio Sarria-S.

    2014-02-01

    Full Text Available El presente trabajo tuvo como objetivo establecer la diversidad de Psocoptera en cuatro hábitats (Playas, Poblado, Senderos y Estratos arbóreos del Parque Nacional Natural Gorgona, Colombia. Se realizaron dos campañas de recolecta durante los meses de noviembre de 2009 y octubre de 2010, con un total de 30 horas/hombre. Se revisó además el material de artrópodos arbóreos del muestreo realizado en el parque en noviembre de 2007, depositado en el Museo de Entomología de la Universidad del Valle (MUSENUV. Los especímenes recolectados en los cuatro sitios, se identificaron como mínimo a nivel de género, y posteriormente se cuantificaron para comparar la riqueza específica y diversidad entre los sitios. Aunque no hubo diferencia significativa en la diversidad estimada por el índice de Shannon-Wiener, se registró una alta riqueza de especies y abundancia para los hábitats “Playas” y “Poblado”. Se observó una tendencia de los Psocoptera del PNN Gorgona a ocupar espacios donde la cubierta vegetal es baja.

  15. Descriptions and records of Cladiopsocidae and Dolabellopsocidae (Insecta: Psocodea: 'Psocoptera') from Valle del Cauca and National Natural Park Gorgona, Colombia.

    Science.gov (United States)

    Calderón-Martínez, Nadia R; González-Obando, Ranulfo; Aldrete, Alfonso N García

    2014-11-28

    The results of a survey on the species diversity of the families Cladiopsocidae and Dolabellopsocidae (Psocodea: 'Psocoptera': Psocomorpha: Epipsocetae) in Valle del Cauca and in the National Natural Park (NNP) Gorgona, Colombia, are presented. The specimens studied were collected in the context of two scientific projects, in which 12 species in the two families were identified, five in Cladiopsocidae and seven in Dolabellopsocidae. In the first family, Cladiopsocus presented a new record in the country and four new species; in the latter, two genera were identified, Dolabellopsocus, with three new species and two new records, and Isthmopsocus, with two new species. This study presents the description of the nine new species from Valle del Cauca and NNP Gorgona, the new records for Colombia and identification keys to the neotropical species of both families.

  16. Wing stridulation in a Jurassic katydid (Insecta, Orthoptera) produced low-pitched musical calls to attract females.

    Science.gov (United States)

    Gu, Jun-Jie; Montealegre-Z, Fernando; Robert, Daniel; Engel, Michael S; Qiao, Ge-Xia; Ren, Dong

    2012-03-06

    Behaviors are challenging to reconstruct for extinct species, particularly the nature and origins of acoustic communication. Here we unravel the song of Archaboilus musicus Gu, Engel and Ren sp. nov., a 165 million year old stridulating katydid. From the exceptionally preserved morphology of its stridulatory apparatus in the forewings and phylogenetic comparison with extant species, we reveal that A. musicus radiated pure-tone (musical) songs using a resonant mechanism tuned at a frequency of 6.4 kHz. Contrary to previous scenarios, musical songs were an early innovation, preceding the broad-bandwidth songs of extant katydids. Providing an accurate insight into paleoacoustic ecology, the low-frequency musical song of A. musicus was well-adapted to communication in the lightly cluttered environment of the mid-Jurassic forest produced by coniferous trees and giant ferns, suggesting that reptilian, amphibian, and mammalian insectivores could have also heard A. musicus' song.

  17. New species of aquatic insects from Europe (Insecta: Trichoptera): Alps and Pyrenees as harbours of unknown biodiversity

    Science.gov (United States)

    GRAF, WOLFRAM; VITECEK, SIMON; PREVIŠIĆ, ANA; MALICKY, HANS

    2016-01-01

    New species are described from the following genera: Consorophylax and Anisogamus, (Trichoptera, Limnephilidae). Additionally the larvae of the genus Anisogamus, and the larval stages of Anisogamus waringeri nov. sp. and A. difformis (McLachlan 1867) are described. The new species Consorophylax vinconi sp. nov. is a microendemic from the Southern Alps and differs distinctly from its congeners in the shape of the parameres, which are distinctly straitened in the distal quarter in the new species. The new species Anisogamus waringeri sp. nov. represents the second species in the hitherto monospecific genus Anisogamus. Compared to Anisogamus difformis, A. waringeri sp. nov. develops more slender superior appendages; a more rounded basal plate of the intermediate appendages, lacking pointed protuberances; and parameres shorter than the aedaegus, proximally with one dorsal and several ventral tines. Further, the two species are disjunctly distributed in the European mountain ranges (A. difformis: Alps, A. waringeri sp. nov.: Pyrenees). Larvae of the genus Anisogamus are characterized by the lack of a dorsal protuberance on the 1st abdominal segment, a unique feature among Limnephilidae. Anisogamus difformis and A. waringeri sp. nov. larvae differ in pronotum shape. The recovery of two new species demonstrates the significance of taxonomic studies in Europe, and the importance of adequate training for young scientists in order to assess a biodiversity under threat of extinction that has yet to be fully described. PMID:25661619

  18. Changing the pupal- case architecture as a survival strategy in the caddisfly, Annitella amelia Sipahiler, 1998 (Insecta, Trichoptera)

    Energy Technology Data Exchange (ETDEWEB)

    Alba-Tercedor, J.; SAinz-Bariain, M.; Zamora-Muñoz, C.

    2016-07-01

    In early autumn, pupal cases of the scarce caddisfly species, Annitella amelia Sipahiler, 1998 were collected on the shore of a narrow, shallow brook from the northwestern Iberian peninsula, in Spain. Some of the pupal cases had been built as a new tube inside an existing tubular case. Moreover, for pupation, the last instar larvae clearly changed the architecture of the cases by adding internal and/or external grains of substrate at the tips. An architectural study with microCT techniques made it possible to divide each case into equal halves and to indirectly measure the weight of each. As no significant differences were found, it was concluded that pupa equilibrates its case, ensuring that it will lie horizontally on the substrate of the brook and thus avoid more vertical positions that might risk air exposure. The architectural changes could represent a survival strategy during pupation, in which the pupae remain in shallow channels ditches of the small brooks. (Author)

  19. Comparative mitogenomics of Braconidae (Insecta: Hymenoptera) and the phylogenetic utility of mitochondrial genomes with special reference to Holometabolous insects

    Science.gov (United States)

    2010-01-01

    Background Animal mitochondrial genomes are potential models for molecular evolution and markers for phylogenetic and population studies. Previous research has shown interesting features in hymenopteran mitochondrial genomes. Here, we conducted a comparative study of mitochondrial genomes of the family Braconidae, one of the largest families of Hymenoptera, and assessed the utility of mitochondrial genomic data for phylogenetic inference at three different hierarchical levels, i.e., Braconidae, Hymenoptera, and Holometabola. Results Seven mitochondrial genomes from seven subfamilies of Braconidae were sequenced. Three of the four sequenced A+T-rich regions are shown to be inverted. Furthermore, all species showed reversal of strand asymmetry, suggesting that inversion of the A+T-rich region might be a synapomorphy of the Braconidae. Gene rearrangement events occurred in all braconid species, but gene rearrangement rates were not taxonomically correlated. Most rearranged genes were tRNAs, except those of Cotesia vestalis, in which 13 protein-coding genes and 14 tRNA genes changed positions or/and directions through three kinds of gene rearrangement events. Remote inversion is posited to be the result of two independent recombination events. Evolutionary rates were lower in species of the cyclostome group than those of noncyclostomes. Phylogenetic analyses based on complete mitochondrial genomes and secondary structure of rrnS supported a sister-group relationship between Aphidiinae and cyclostomes. Many well accepted relationships within Hymenoptera, such as paraphyly of Symphyta and Evaniomorpha, a sister-group relationship between Orussoidea and Apocrita, and monophyly of Proctotrupomorpha, Ichneumonoidea and Aculeata were robustly confirmed. New hypotheses, such as a sister-group relationship between Evanioidea and Aculeata, were generated. Among holometabolous insects, Hymenoptera was shown to be the sister to all other orders. Mecoptera was recovered as the sister-group of Diptera. Neuropterida (Neuroptera + Megaloptera), and a sister-group relationship with (Diptera + Mecoptera) were supported across all analyses. Conclusions Our comparative studies indicate that mitochondrial genomes are a useful phylogenetic tool at the ordinal level within Holometabola, at the superfamily within Hymenoptera and at the subfamily level within Braconidae. Variation at all of these hierarchical levels suggests that the utility of mitochondrial genomes is likely to be a valuable tool for systematics in other groups of arthropods. PMID:20537196

  20. Hybridogenesis and a potential case of R2 non-LTR retrotransposon horizontal transmission in Bacillus stick insects (Insecta Phasmida).

    Science.gov (United States)

    Scavariello, Claudia; Luchetti, Andrea; Martoni, Francesco; Bonandin, Livia; Mantovani, Barbara

    2017-02-06

    Horizontal transfer (HT) is an event in which the genetic material is transferred from one species to another, even if distantly related, and it has been demonstrated as a possible essential part of the lifecycle of transposable elements (TEs). However, previous studies on the non-LTR R2 retrotransposon, a metazoan-wide distributed element, indicated its vertical transmission since the Radiata-Bilateria split. Here we present the first possible instances of R2 HT in stick insects of the genus Bacillus (Phasmida). Six R2 elements were characterized in the strictly bisexual subspecies B. grandii grandii, B. grandii benazzii and B. grandii maretimi and in the obligatory parthenogenetic taxon B. atticus. These elements were compared with those previously retrieved in the facultative parthenogenetic species B. rossius. Phylogenetic inconsistencies between element and host taxa, and age versus divergence analyses agree and support at least two HT events. These HT events can be explained by taking into consideration the complex Bacillus reproductive biology, which includes also hybridogenesis, gynogenesis and androgenesis. Through these non-canonical reproductive modes, R2 elements may have been transferred between Bacillus genomes. Our data suggest, therefore, a possible role of hybridization for TEs survival and the consequent reshaping of involved genomes.