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Resumo Anthonomus grandis grandis (Coleoptera: Curculionidae) é uma praga com grande potencial de destruição nas lavouras de algodão, causando danos às estruturas reprodutivas do algodoeiro. A tesourinha Marava arachidis (Dermaptera: Labiidae), é uma importante referência como predador em diversas culturas agrícolas, além de ser de fácil criação em laboratório. Com o objetivo de analisar o potencial biocontrole de larvas de A. grandis grandis por M. arachidis, foi realizado um estudo de capacidade predatória utilizando um modelo de resposta funcional. Larvas de A. grandis grandis foram expostas ao predador nas densidades: 1, 2, 4, 6 e 8 larvas (= presa/predador/placa de Petri), com 30 repetições em cada densidade. O contato entre o predador e a presa ocorreu durante 24 horas; após esse período, o nível de predação de M. arachidis foi avaliado com base na proporção de larvas predadas. O coeficiente de regressão logística linear foi utilizado com um modelo linear generalizado beta-binomial para determinar a resposta funcional. O sinal negativo do coeficiente linear e os testes de ajuste revelaram uma resposta funcional quadrática ou tipo II, com o número de presas variando de 1,00 larva (densidade de 1 larva/predador) a 6,50 larvas (densidade de 8 larvas/predador). Portanto, os resultados do presente estudo demonstram uma alta capacidade predatória de M. arachidis sobre larvas de A. grandis grandis. Coleoptera (Coleoptera Curculionidae algodão algodoeiro Dermaptera (Dermaptera Labiidae, Labiidae , Labiidae) agrícolas laboratório M densidades 2 4 = ( presapredadorplaca placa Petri, Petri Petri) 3 densidade horas período predadas betabinomial beta binomial II 100 00 1,0 larva/predador larvapredador 650 50 6,5 larvas/predador. larvaspredador larvas/predador . larvas/predador) Portanto 10 0 65 5 6,

Abstract Anthonomus grandis grandis (Coleoptera: Curculionidae) is a pest with a large potential for destruction in cotton crops, causing damage to the cotton reproductive structures. The earwig Marava arachidis (Dermaptera: Labiidae), is an important reference as a predator in several crops and being easy to rear in the laboratory. To analyze the potential biocontrol of M. arachidis of A. grandis grandis larvae, a study of predatory capacity was conducted using a functional response model. A. grandis grandis larvae were exposed to the predator at densities 1, 2, 4, 6, and 8 larvae (= prey/predator / Petri dish), with 30 replications at each density. Contact between the predator and the prey occurred for 24 hours; after this period, the level of predation of M. arachidis was assessed based on the proportion of preyed larvae. The linear logistic regression coefficient was used with a beta-binomial generalized linear model to determine the functional response. The negative signal of the linear coefficient and the goodness-of-fit tests revealed a quadratic or type II functional response, with the number of prey varying from 1.00 larva (density of 1 larva/predator) to 6.50 larvae (density of 8 larvae/predator). Therefore, the results of the present study demonstrate a high predatory capacity of M. arachidis on A. grandis grandis larvae. Coleoptera (Coleoptera Curculionidae structures Dermaptera (Dermaptera Labiidae, Labiidae , Labiidae) laboratory M A 2 4 6 = ( preypredator dish, dish dish) 3 density hours period betabinomial beta binomial goodnessoffit goodness fit 100 00 1.0 larva/predator larvapredator 650 50 6.5 larvae/predator. larvaepredator larvae/predator . larvae/predator) Therefore 10 0 1. 65 5 6.

https://doi.org/10.1590/1519-6984.282251

First report of earwig Doru luteipes (Dermaptera: Forficulidae) preying on corn leafhopper Dalbulus maidis (Hemiptera: Cicadellidae) nymphs Dermaptera (Dermaptera Forficulidae Hemiptera (Hemiptera Cicadellidae
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Bortolotto, O. C.

; Santos, J. V. C.

; Ochonski, A. G.

Brazilian Journal of Biology

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2024, Volumen 84 elocation e285975

Resumen: En | Texto: En | PDF: En

https://doi.org/10.1590/1519-6984.285975

Evaluation of Doru lineare (Dermaptera: Forficulidae) effectiveness against Spodoptera frugiperda (Lepidoptera: Noctuidae) and its potential protection of maize seedlings
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ROMERO SUELDO, Gladys M

; VIRLA, Eduardo G.

; CONTARINI, Mario

; VAN NIEUWENHOVE, Guido A.

; SPERANZA, Stefano

Revista de la Sociedad Entomológica Argentina

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Jun 2023, Volumen 82 Nº 2 Paginas 9 - 9

Resumen: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen El “gusano cogollero”, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), es una plaga importante de muchos cultivos, particularmente del maíz. Para su control, las plantas modificadas genéticamente y los plaguicidas sintéticos son las principales estrategias empleadas, lo que ha provocado la aparición de poblaciones resistentes a ambos métodos. La tijereta Doru lineare (Eschscholtz) (Dermaptera: Forficulidae) ha sido observada en Argentina consumiendo tanto huevos como larvas de los primeros estadios de S. frugiperda. Para contribuir a la implementación de un sistema de manejo racional de plagas, se realizaron pruebas en jaulas de campo para evaluar la eficiencia de D. lineare como depredador contra S. frugiperda y su potencial protección de las plántulas de maíz de la plaga. Los resultados de las pruebas mostraron que la tasa de supervivencia de las larvas de S. frugiperda se vio significativamente afectada por la presencia de tijeretas. Cuando se liberaron dos tijeretas en una jaula que contenía diez plántulas de maíz infestadas con veinte larvas de S. frugiperda, después de diez días, el peso seco de las plantas fue significativamente mayor y el nivel de daño fue significativamente menor en comparación con aquellas sin liberación de tijeretas. Estos resultados confirman el efecto protector de D. lineare contra S. frugiperda, lo que sugiere que las tijeretas deben considerarse depredadores prometedores en las estrategias de control de conservación para cultivos de maíz.

Abstract The “fall armyworm”, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), is a significant pest of many crops, particularly maize. To control it, genetically modified plants and synthetic pesticides are the main strategies employed, which has led to the emergence of resistant populations to both methods. The earwig Doru lineare (Eschscholtz) (Dermaptera: Forficulidae) has been observed in Argentina consuming both eggs and early instars S. frugiperda larvae. To contribute to the implementation of a rational pest management system, field cage tests were conducted to assess the efficiency of D. lineare as a predator against S. frugiperda and its potential protection of maize seedlings from the pest. The results of the tests showed that the survival rate of S. frugiperda larvae was significantly affected by the presence of earwigs. When two earwigs were released into a cage containing ten maize seedlings infested with twenty S. frugiperda larvae, after ten days, the dry weight of the plants was significantly higher and the level of damage was significantly lower compared to those without earwig release. These results confirm the protective effect of D. lineare against S. frugiperda, suggesting that earwigs should be considered as promising predators in conservation control strategies for maize crops.

DNA sequencing in the classroom: complete genome sequence of two earwig (Dermaptera; Insecta) species
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Kobayashi, Sanae

; Maldonado, Jonathan E.

; Gaete, Alexis

; Araya, Ingrid

; Aguado-Norese, Constanza

; Cumplido, Nicolás

; Díaz, Sebastián

; Espinoza, Alonso

; Fernández, Edelmira

; Gajardo, Felipe

; González-Ordenes, Felipe

; Hauyon, Khantati

; Maldonado, Piedad

; Maldonado, Rodrigo

; Pochet, Isabel

; Riveros, Aníbal

; Sandoval, Paula

; Sepúlveda-González, Ailynne

; Stuardo, Camila

; Tapia-Reyes, Patricio

; Thornton, Carolina

; Undurraga, Soledad

; Varas, Macarena

; Valdivieso, Camilo

; Gutiérrez, Rodrigo A.

; Orellana, Ariel

; Montecino, Martín

; Maass, Alejandro

; González, Mauricio

; Allende, Miguel L.

; Hodar, Christian

; Irles, Paula

Biological Research

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2023, Volumen 56 elocation 6

Resumen: En | Texto: En | PDF: En

Abstract Background Despite representing the largest fraction of animal life, the number of insect species whose genome has been sequenced is barely in the hundreds. The order Dermaptera (the earwigs) suffers from a lack of genomic information despite its unique position as one of the basally derived insect groups and its importance in agroecosystems. As part of a national educational and outreach program in genomics, a plan was formulated to engage the participation of high school students in a genome sequencing project. Students from twelve schools across Chile were instructed to capture earwig specimens in their geographical area, to identify them and to provide material for genome sequencing to be carried out by themselves in their schools. Results The school students collected specimens from two cosmopolitan earwig species: Euborellia annulipes (Fam. Anisolabididae) and Forficula auricularia (Fam. Forficulidae). Genomic DNA was extracted and, with the help of scientific teams that traveled to the schools, was sequenced using nanopore sequencers. The sequence data obtained for both species was assembled and annotated. We obtained genome sizes of 1.18 Gb (F. auricularia) and 0.94 Gb (E. annulipes) with the number of predicted protein coding genes being 31,800 and 40,000, respectively. Our analysis showed that we were able to capture a high percentage (≥ 93%) of conserved proteins indicating genomes that are useful for comparative and functional analysis. We were also able to characterize structural elements such as repetitive sequences and non-coding RNA genes. Finally, functional categories of genes that are overrepresented in each species suggest important differences in the process underlying the formation of germ cells, and modes of reproduction between them, features that are one of the distinguishing biological properties that characterize these two distant families of Dermaptera. Conclusions This work represents an unprecedented instance where the scientific and lay community have come together to collaborate in a genome sequencing project. The versatility and accessibility of nanopore sequencers was key to the success of the initiative. We were able to obtain full genome sequences of two important and widely distributed species of insects which had not been analyzed at this level previously. The data made available by the project should illuminate future studies on the Dermaptera.

https://doi.org/10.1186/s40659-023-00414-9

Natural enemies recovered from Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae) larvae infesting the cartridge, ear and stem of corn plants under conventional and organic farming systems in Brazil JE J E J.E Lepidoptera (Lepidoptera Noctuidae cartridge
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SILVA, RAFAEL B. DA

; CRUZ, IVAN

; FIGUEIREDO, MARIA DE LOURDES C.

; REDOAN, ANA CAROLINA M.

; SHIMBORI, EDUARDO M.

; TAVARES, WAGNER DE S.

; DIAS, ANGÉLICA MARIA P.M.

Anais da Academia Brasileira de Ciências

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2023, Volumen 95 Nº 4 elocation e20200042

Resumen: En | Texto: En | PDF: En

Abstract The corn cropping system can influence the natural enemy identity and the number of Spodoptera frugiperda J.E. Smith, 1797 (Lepidoptera: Noctuidae) individuals infesting the cartridge, ear and stem of this plant. The objectives were to identify the S. frugiperda natural enemies and differences in the number of individuals infesting the cartridge, ear and stem of corn plants under conventional and organic cropping systems, in Brazil after an initial collection of adult males through semiochemical traps. We also evaluated key morphometrical parameters of the larva and factors contributing with the viability of S. frugiperda. A total of 16 and 136 adult males was trapped, and 1,124 and 1,112 larvae was recovered from conventional and organic systems with 4.7 and 6.7% of them parasitized by dipteran and hymenopteran, respectively. Most of the parasitoids recovered had occurrence in both cropping systems, except Cremastinae and Ophion flavidus Brullé, 1846 (Hymenoptera: Ichneumonidae), which were recorded only in organic and Campoletis sp. (Hymenoptera: Ichneumonidae) only in conventional corns. The number of parasitoids recovered was similar in corn plant samples between both cropping systems. A total of 152 and 31 larvae was recovered from corn ears under conventional and organic systems, respectively. Doru luteipes (Scudder, 1876) (Dermaptera: Forficulidae) was recovered from all samples under conventional system. The larva length was overall similar between cropping systems. Parasitism by dipteran and hymenopteran, infection by microorganisms, larva mortality by undetermined causes, and differences in viability of S. frugiperda stages were factors contributing with the supression of this pest. The new associations and parasitoids reported represent possibilities of expanding the biological control strategies to manage S. frugiperda in corn crops. JE J E J.E Smith 179 Lepidoptera (Lepidoptera Noctuidae cartridge S traps 1 13 trapped 1124 124 1,12 1112 112 1,11 47 4 7 4. 67 6 6.7 hymenopteran respectively Brullé 184 Hymenoptera (Hymenoptera Ichneumonidae, Ichneumonidae , sp corns 15 3 Scudder, Scudder (Scudder 1876 Dermaptera (Dermaptera Forficulidae microorganisms causes pest crops 17 12 1,1 111 11 6. 18 187 1,

https://doi.org/10.1590/0001-3765202320200042

The taxonomic catalog of the Brazilian fauna: Dermaptera and Phasmatodea (Insecta), with commentaries on species list, types, authorship and distribution fauna Insecta, Insecta , (Insecta) list types (Insecta
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Heleodoro, Raphael A.

; Rafael, José Albertino

Zoologia (Curitiba)

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2023, Volumen 40 elocation e22060

Resumen: En | Texto: En | PDF: En

ABSTRACT A checklist of Dermaptera and Phasmatodea from Brazil is presented, from the Catalog of the Brazilian Fauna project, an online platform available at http://fauna.jbrj.gov.br, which gathers taxonomic information (valid species, distribution, synonymies, depository location, etc.) from species recorded in the country. The patterns of known type locations, biome distribution, and rate of new species descriptions in Brazil are discussed. There is a great number of lost types and few numbers of secondary types, indicating that collecting activities focused on Dermaptera and Phasmatodea followed by taxonomic treatments have not been many. The best-known biome in terms of species of Dermaptera and Phasmatodea is the Atlantic Forest, followed by the Amazon Forest. There are significantly less species recorded for the other biomes. This bias may be explained by the colonization of Brazil, which started in areas of Atlantic Forest, and the several expeditions that occurred in the Amazon region in the last century. As for the rate of new species descriptions, a steady and slow pattern of new species described through time is characteristic of Dermaptera, while large gaps of time without any new taxon followed by clusters of many described species is characteristic of Phasmatodea. presented project http//fauna.jbrj.gov.br, httpfaunajbrjgovbr http //fauna.jbrj.gov.br, fauna jbrj gov br http://fauna.jbrj.gov.br valid distribution synonymies location etc. etc country locations discussed bestknown best Forest biomes century http//fauna.jbrj.gov.br faunajbrjgovbr //fauna.jbrj.gov.br

https://doi.org/10.1590/s1984-4689.v40.e22060

New taxa of earwigs (Dermaptera: Spongiphoridae: Spongiphorinae) in lower Miocene amber from Simojovel, Chiapas, Mexico
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Estrada-Álvarez, Julio C.

; Núñez-Bazán, Reinier

; Mata-González, Jorge A.

; Vega, Francisco J.

Boletín de la Sociedad Geológica Mexicana

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2023, Volumen 75 Nº 2 elocation A240223

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

ABSTRACT New Dermaptera taxa (one new genus and four new species) are reported from amber pieces proceeding from Mina Los Pocitos near Simojovel de Allende, Chiapas. The amber pieces were collected in the lower Miocene Mazantic Shale, including well-preserved earwigs, with only one antecedent for this insect group in the Mexican amber. The presence of this kind of insects supports the paleoenvironmental interpretation for the Mazantic Shale amber as of a humid forest.

RESUMEN Nuevos dermápteros (un género nuevo y cuatro especies nuevas) son reportados de piezas de ámbar procedentes de la Mina Los Pocitos, cerca de near Simojovel de Allende, Chiapas. Las piezas de ámbar, colectadas en la Lutita Mazantic del Mioceno inferior, incluyen ejemplares bien preservados de tijerillas, con solo un antecedente de este grupo para el ámbar mexicano. La presencia de este tipo de insectos apoya la interpretación paleoambiental de un bosque húmedo para el ámbar de la Lutita Mazantic.

https://doi.org/10.18268/bsgm2023v75n2a240223

Avaliação preliminar da diversidade e abundância de artrópodes num pomar de aveleiras
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Santos, António

; Lopes, Arminda

; Martins, Sérgio

; Costa, Cristina Amaro da

Revista de Ciências Agrárias

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Dic 2020, Volumen 43 Nº spe2 Paginas 61 - 70

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO A biodiversidade funcional é uma mais-valia para os sistemas agrícolas, em particular pelo papel que desempenha na promoção de vários serviços do ecossistema, designadamente a limitação natural dos inimigos das culturas. A biodiversidade de artrópodes associados à cultura da aveleira em Portugal, em particular no que se refere à fauna auxiliar, é pouco conhecida, resumindo-se a listagens das pragas mais relevantes. Neste sentido, com o objetivo de contribuir para a conservação e promoção da biodiversidade funcional, na cultura da aveleira, importa conhecer a diversidade e abundância de artrópodes deste agroecossistema. O trabalho foi desenvolvido no pomar de aveleiras da Estação Agrária de Viseu, conduzido em modo de produção biológico. Procedeu-se à recolha de artrópodes, quinzenalmente, entre maio e agosto de 2018, através da técnica das pancadas, após o que foram triados em laboratório e separados por ordens, morfotipos e tipos funcionais (predadores, parasitóides, fitófagos, detritívoros e “indiferentes”). Capturaram-se 1557 artrópodes pertencentes a 9 ordens da classe Insecta (88% dos exemplares) e à classe Arachnida (ordem: Araneae). Relativamente à classe Insecta, as ordens mais abundantes foram: Hemiptera - subordem Heteroptera, (Anthocoridae e Miridae), Coleoptera (maior número de morfotipos, em particular da família Coccinelidae) e, ainda, Hymenoptera, Dermaptera e Neuroptera.

ABSTRACT Functional biodiversity is an asset for agricultural systems, particularly due to the role played by the promotion of ecosystem services, namely the natural control of crop pests. The biodiversity of arthropods associated with the hazelnut orchards in Portugal is little known, especially in relation with the natural enemies, and resumed to lists of the main pests. In this sense, and in order to contribute to the conservation and promotion of functional biodiversity in the hazelnut orchards, it is important to know the diversity and abundance of arthropods of this agroecosystem. The work was carried out in the organic hazelnut orchard of Estação Agrária de Viseu. Arthropods were collected, between May and August 2018, using the beating technique, after which they were screened in the laboratory and selected by orders, morphotypes and functional roles (predators, parasitoids, phytophages, detritivores and “indifferents”). A total of 1557 arthropods, belonging to 9 orders from the class Insecta (88% of the individuals) and the class Arachnida (order: Araneae), were captured. Regarding the class Insecta, the most abundant orders were: Hemiptera - suborder Heteroptera, (Anthocoridae and Miridae), Coleoptera (greater number of morphotypes, in particular of the Coccinellidae family) and, also, Hymenoptera, Dermaptera and Neuroptera.

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Diversidad de insectos del suelo asociados al cultivo de maíz (Zea mays L.) en La Molina / Lima / Perú
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Livia, Carmen

; Sánchez, Guillermo

; Cruces, Luis

Ecología Aplicada

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Jul 2020, Volumen 19 Nº 2 Paginas 57 - 64

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract In order to determine the composition, abundance and diversity of soil dwelling insects in an agricultural field of corn production (5 ha), in the district of La Molina (Lima, Peru), 12 pit falls were installed, which were evaluated weekly for approximately 4 months (March-June). Collective samples were processed by separating individuals by morphotypes, recording the quantity and date of the collection. Finally, the specimens were identified in the Laboratory of the Klaus Raven Büller Entomology Museum with the help of identification keys and, in some cases, by comparison with museum specimens. Individuals of the orders Orthoptera (Families Acrididae and Gryllidae); Dermaptera (Family Anisolabididae); Coleoptera (Families Carabidae, Staphylinidae, Tenebrionidae, Scarabaeidae and Elateridae); and Hymenoptera (Family Formicidae) were identified. Order Hymenoptera was the most abundant with genus Linepithema sp. (Family Formicidae). Order Coleoptera registered the highest number of identified morphospecies, among which Blennidus peruvianus was the most predominant. The analysis of diversity gave a high value of Simpson’s dominance index (0.91 ± 0.006), whereas the Shannon index value was intermediate (2.67 ± 0.05). The Chao1 and ACE estimators indicated that the specific richness observed in the field was very close to the estimated, giving a sampling effort between 81.9 and 84.7 %.

Resumen Con el propósito de determinar la composición, abundancia y diversidad de insectos de suelo en un campo agrícola de producción de maíz (5 ha), en el distrito de La Molina (Lima, Perú), se instalaron 12 trampas de caída, las cuales fueron evaluadas semanalmente durante aproximadamente 4 meses (marzo-junio). Las muestras se procesaron separando los individuos por morfotipos, registrando la cantidad y la fecha de la colecta. Finalmente, se identificaron los ejemplares en el Laboratorio del Museo de Entomología Klaus Raven Büller con la ayuda de claves de identificación y, en algunos casos, comparación con los especímenes del museo. Se registraron individuos de los órdenes Orthoptera (Fam. Acrididae y Gryllidae); Dermaptera (Fam. Anisolabididae); Coleoptera (Fam. Carabidae, Staphylinidae, Tenebrionidae, Scarabaeidae y Elateridae); e Hymenoptera (Fam. Formicidae). El orden más abundante fue Hymenoptera con el género Linepithema sp. (Fam. Formicidae). El orden Coleoptera registró el mayor número de morfoespecies identificadas, entre las cuales Blennidus peruvianus fue el más predominante. El análisis de diversidad mostró un alto valor del índice de dominancia de Simpson (0.91 ± 0.006), mientras que el valor del índice de Shannon fue intermedio (2.67 ± 0.05). Los estimadores de Chao1 y ACE indicaron que la riqueza específica observada fue muy cercana a la estimada, obteniendo un esfuerzo de muestreo entre 81.9 y 84.7%.

https://doi.org/10.21704/rea.v19i2.1556

10.

Assessing climatic and intrinsic factors that drive arthropod diversity in bird nests
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Carvallo, Gastón O.

; López-Aliste, Manuel

; Lizama, Mercedes

; Zamora, Natali

; Muschett, Giselle

Gayana (Concepción)

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Jun 2020, Volumen 84 Nº 1 Paginas 25 - 36

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

ABSTRACT Bird nests are specialized structures that act as microrefuge and a source of food for arthropods. Nest arthropod richness and composition may vary according to the nest builder, geographical location and nest size. Because information on nest arthropods is scarce, there are even fewer studies on the drivers of nest arthropod diversity. We characterized arthropod diversity in cup- and dome-shaped nests along a 130 km latitudinal gradient in the mediterranean-type region of Central Chile and, we assessed whether nest dimensions and climatic factors explain richness (alpha-diversity). Then, we evaluated whether climatic differences between sites explain arthropod nest composition (beta-diversity). All collected nests hosted at least one arthropod specimen. We identified 43 taxonomic entities (4.2 entities per nest ± 0.5, mean ± SE, n = 27 nests) belonging to 18 orders and five classes: Arachnida, Diplopoda, Entognatha, Insecta and Malacostraca. We observed differences in nest arthropod richness and composition related to sites but not bird species. Larger nests supported greater arthropod richness. Furthermore, we observed that climatic differences explain the variation in arthropod composition between sites. Nests in the northern region (drier and warmer) mainly hosted Hemipterans and Hymenopterans. Contrary, nests in the southern region (humid and colder) hosted species of Collembola, Dermaptera, and Diplopoda. Positive relationship between nests surface area with arthropod richness suggests us that larger nests may keep more resources. Our study sheds light on a crucial interaction which may have potential consequences for insect assemblage composition and bird reproductive biology.

RESUMEN Los nidos de aves actúan como microrefugios para artrópodos con variación en su diversidad, mediada entre otros factores, por las especies de aves constructoras, la ubicación y el tamaño de los nidos. En este estudio caracterizamos la diversidad de artrópodos que viven en nidos con forma de copa y domo en Chile Central evaluando si las dimensiones del nido y los factores climáticos explican su riqueza (diversidad alfa) y si las diferencias climáticas entre sitios explican diferencias en composición (diversidad beta). Identificamos un total de 43 entidades taxonómicas en los nidos (4,2 entidades por nido ± 0,5, media ± ES, n = 27 nidos) pertenecientes a 18 órdenes y cinco clases. La riqueza y composición de artrópodos de nidos presentó diferencias entre sitios, pero no entre aves. Los nidos con mayor superficie albergaron mayor riqueza. Las diferencias climáticas entre sitios explicaron la variación en composición: la zona septentrional (condiciones secas y cálidas) presentó dominancia de Hemípteros e Himenópteros. En los nidos de la zona sur (condiciones húmedas y frías) dominaron especies de los órdenes Collembola, Dermáptera y Diplopoda. La relación positiva entre la superficie de los nidos con la riqueza de artrópodos sugiere que nidos de mayor dimensión dispondrían de más recursos, favoreciendo la diversidad de artrópodos. Nuestro estudio contribuye a esclarecer una interacción clave que impacta los ensambles de insectos y la biología reproductiva de las aves.

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11.

Insect (Hexapoda) diversity in the oceanic archipelago of Fernando de Noronha, Brazil: updated taxonomic checklist and new records
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Rafael, José Albertino

; Limeira-de-Oliveira, Francisco

; Hutchings, Roger William

; Miranda, Gil Felipe Gonçalves

; Silva Neto, Alberto Moreira da

; Somavilla, Alexandre

; Camargo, Alexssandro

; Asenjo, Angélico

; Pinto, Ângelo Parise

; Bello, Ayr de Moura

; Dalmorra, Camila

; Mello-Patiu, Cátia Antunes de

; Carvalho, Claudio José Barros de

; Takiya, Daniela Maeda

; Parizotto, Daniele Regina

; Marques, Dayse Willkenia Almeida

; Cavalheiro, Denis de Oliveira

; Mendes, Diego Matheus de Mello

; Zeppelini, Douglas

; Carneiro, Eduardo

; Lima, Élison Fabrício Bezerra

; Lima, Estevam Cipriano Araújo de

; Godoi, Fabio Siqueira Pitaluga de

; Pessoa, Felipe Arley Costa

; Vaz-de-Mello, Fernando Zagury

; Sosa-Duque, Francisco José

; Flores, Heloísa Fernandes

; Fernandes, Itanna Oliveira

; Silva-Júnior, José Osvaldo

; Gomes, Lucas Roberto Pereira

; Monné, Marcela Laura

; Castro, Marcelo Cutrim Moreira de

; Silva, Marcelo Peixoto Gomes da

; Couri, Márcia Souto

; Gottschalk, Marco Silva

; Soares, Matheus Mickael Mota

; Monné, Miguel Angel

; Rafael, Miriam Silva

; Casagrande, Mirna Martins

; Mielke, Olaf Hermann Hendrik

; Grossi, Paschoal Coelho

; Pinto, Paula Jéssica Costa

; Bartholomay, Pedro Reck

; Sobral, Rafael

; Heleodoro, Raphael Aquino

; Machado, Renato José Pires

; Corrêa, Robson Crepes

; Hutchings, Rosa Sá Gomes

; Ale-Rocha, Rosaly

; Santos, Sandra Duque dos

; Lima, Sheila Pereira de

; Mahlmann, Thiago

; Silva, Vera Cristina

; Fernandes, Daniell Rodrigo Rodrigues

Revista Brasileira de Entomologia

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2020, Volumen 64 Nº 3 elocation e20200052

Resumen: En | Texto: En | PDF: En

ABSTRACT Hexapods, commonly known as insects, are a neglected taxonomic group in the Fernando de Noronha archipelago, with unanswered questions about their species richness and the ecological processes in which they are involved (e.g., colonization, introduction, establishment, and extinction). Herein, we provide an updated Hexapod checklist with current nomenclatural combinations. The entomofauna of the Fernando de Noronha archipelago is currently composed of 453 species in 21 orders. The orders, and their respective number of species, are: Blattaria (9), Coleoptera (118), Collembola (29), Dermaptera (3), Diplura (1), Diptera (134), Embioptera (1), Hemiptera (29), Hymenoptera (59), Isoptera (2), Lepidoptera (25), Mantodea (1), Neuroptera (3), Odonata (5), Orthoptera (11), Phasmatodea (1), Phthiraptera (6), Psocoptera (3), Siphonaptera (1), Thysanoptera (10), and Zygentoma (2). The archipelago has 263 new taxon records (family + genera + species). Thirty-eight species (3.39%) were described from local specimens and most of them are likely endemic species. This study more than doubles our knowledge (from the previous 190 records) of the entomofauna in this large Brazilian archipelago. This study also provides a baseline for studies on its conservation status and for implementing future environmental management programs.

https://doi.org/10.1590/1806-9665-rbent-2020-0052 2462 descargas

12.

Quantitative impacts of different planting arrangements on the populations of natural enemies in soybean
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Carvalho, Marina Mouzinho

; Carvalho, Leidiane Coelho

; Bueno, Regiane Cristina Oliveira de Freitas

Acta Scientiarum. Agronomy

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2019, Volumen 41 elocation e42605

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ABSTRACT. Natural biological control is an important alternative for the control of insect pests using natural enemies that occur naturally in agroecosystems. The potential of these insects can increase when they are adequately managed. Thus, the objective of this study was to quantify the populations of natural enemies in soybean cultivars with different growth habits planted in different arrangements. The experiment consisted of eight treatments: four planting arrangements and two soybean cultivars, with four replicates. The populations of natural enemies were evaluated from the vegetative stage V3 to crop harvest using a shaking-cloth. A population survey of the beneficial arthropods present on the soil surface was performed in the reproductive stages R2 and R3 with the installation of modified pitfall traps. The main natural enemies that occurred in the culture were Class Arachnida, Order Heteroptera, Order Hymenoptera, Order Coleoptera and Order Dermaptera. The populations of the natural enemies assessed using the shaking-cloth did not show significant differences. However, in the evaluations with the modified pitfall traps in the reproductive stage R3 in the crossed arrangement, the populations of the Coleoptera and Dermaptera orders were higher in the determinate cultivar than in the indeterminate cultivar.

https://doi.org/10.4025/actasciagron.v41i1.42605 553 descargas

13.

Breaking the rule: multiple patterns of scaling of sexual size dimorphism with body size in orthopteroid insects
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Bidau, Claudio J.

; Taffarel, Alberto

; Castillo, Elio R.

Revista de la Sociedad Entomológica Argentina

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Jun 2016, Volumen 75 Nº 1-2 Paginas 11 - 36

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

Sexual size dimorphism (SSD) although a widespread phenomenon among animals, is both enigmatic as to its proximate and ultimate causes and the scaling relationships between SSD and body size (Rensch's rule). We analyzed SSD at the intra- and interspecific levels in a number of representative species and genera of the major orthopteroid orders: Orthoptera, Phasmatodea, Mantodea, Blattodea, Dermaptera, Isoptera, and Mantophasmatodea. The vast majority of the species showed female biased SSD but numerous exceptions occur in cockroaches and earwigs. Rensch's rule and its converse are not common patterns at both, intra-and cross-species level, most species and genera showing an isometric relationship between male and female body sizes. In some but not all cases, the demonstrated allometric patterns could be related to geographic body size variation. We also showed that not all body size estimators produce the same degree of SSD and that dimorphism can be strongly influenced by a number of living conditions and the patterns of nymphal development. Finally, we discuss our results in relation to current models of the evolution of sexual size dimorphism in animals.

El dimorfismo sexual de tamaño (SSD por sus siglas en inglés) es un fenómeno ampliamente distribuido en los animales y sin embargo, enigmático en cuanto a sus causas últimas y próximas y a las relaciones alométricas entre el SSD y el tamaño corporal (regla de Rensch). Analizamos el SSD a niveles intra- e interespecíficos en un número de especies y géneros representativos de los órdenes ortopteroides mayores: Orthoptera, Phasmatodea, Mantodea, Blattodea, Dermaptera, Isoptera, y Mantophasmatodea. La vasta mayoría de las especies mostraron SSD sesgado hacia las hembras, pero numerosas excepciones ocurren en cucarachas y dermápteros. La regla de Rensch y su inversa no constituyeron patrones comunes, tanto a nivel intraespecífico como interespecífico, con la mayoría de las especies y géneros mostrando una relación isométrica entre los tamaños de macho y hembra. En algunos casos, los patrones alométricos hallados podrían relacionarse con la variación geográfica del tamaño corporal. También demostramos que no todos los estimadores de tamaño corporal producen el mismo grado de SSD y que el dimorfismo puede estar influenciado por un gran número de condiciones de vida y patrones de desarrollo ninfal. Finalmente, discutimos nuestros resultados en relación a modelos actuales de la evolución del dimorfismo sexual de tamaño en animales.

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14.

Faecal analysis as a complementary approach to the study of feeding ecology in the common marmoset (Callithrix jacchus Linnaeus, 1758)
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Silvestre, Saulo M

; Dantas, José O

; da Rocha, Patrício Adriano

; Beltrão-Mendes, Raone

; Ferrari, Stephen F

Mastozoología neotropical

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Jun 2016, Volumen 23 Nº 1 Paginas 185 - 191

Resumen: Pt En Es | Texto: Pt En Es | PDF: Pt | PDF: En | PDF: Es

Nós avaliamos a aplicação da análise fecal como método complementar à observação direta no estudo da Ecologia alimentar de Callithrix jacchus. Nossos resultados indicam que alimentos de origem animal podem ser consumidos com uma frequência maior (com base na análise fecal-FS; 61.48% da dieta) do que previamente pensado (e.g., apenas 22.83% com base na observação direta-OD). Apesar de fornecer melhores dados sobre presas, FS foi menos eficiente que a observação direta no reconhecimento de itens vegetais. Seis Ordens de insetos -incluindo Dermaptera e duas Famílias de Hymenoptera, nunca antes registradas na dieta de saguis- foram identificadas através da FS, que, portanto, se mostrou útil na caracterização da dieta, especialmente para primatas insetívoros.

We evaluated the application of faecal analysis as a complementary approach to direct observation in the study of Callithrix jacchus feeding ecology. Our results indicate that animal foods may be more commonly consumed (based on faecal samples-FS; 61.48% of diet) than previously thought (e.g., only 22.83% based on observational data-OD). Whereas FS provide better data on animal prey, it was less effective than OD in identifying plant items. Six insect orders-including Dermaptera and two hymenopteran families, not previously recorded in marmoset diet-were identified through FS, which is thus shown to be useful in characterizing diet, especially in insectivorous primates.

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15.

Host range findings on Beauveria bassiana and Metarhizium anisopliae (Ascomycota: Hypocreales) in Argentina
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Toledo, A. V.

; De Remes Lenicov, A. M. M.

; López Lastra, C. C.

Boletín de la Sociedad Argentina de Botánica

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Dic 2008, Volumen 43 Nº 3-4 Paginas 211 - 220

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

The natural insect host range of the entomopathogenic fungi (EPF) Beauveria bassiana (Bb) and Metarhizium anisopliae (Ma) was investigated in Argentina during the winter of 2003 through spring of 2004. Fungi- infected insect samples (153) were collected from cornfields and the surrounding uncultivated areas in different localities of Buenos Aires (7), Tucumán (2), and Corrientes (3) provinces. The rates of Bb-infected host range varied among the Coleoptera (37%), Hemiptera (27%) and Dermaptera (1.3%). While the rates of Ma-infected host range varied between the Coleoptera (0.7%) and Hemiptera (34%). The greater host range resulted with B. bassiana found from eight species of Coleoptera (four families), one species of Dermaptera and four species of Hemiptera (three families), than the host range of M. anisopliae found infecting one species of Coleoptera and three species of Hemiptera (two families). We obtained 75 pure fungal isolates (48 Bb-isolates and 27 to Ma-isolates), and 56 of them (33 Bb-isolates and 23 Ma-isolates) were morphologically characterized.

El espectro natural de hospedadores de los hongos entomopatógenos (HEP) Beauveria bassiana (Bb) y Metarhizium anisopliae (Ma) fue investigado en Argentina desde el invierno de 2003 hasta la primavera de 2004. Las muestras de insectos con infecciones fúngicas (153) fueron recolectadas a partir de campos de maíz y las áreas no cultivadas circundantes a los mismos, en diferentes localidades de las provincias de Buenos Aires (7), Tucumán (2) y Corrientes (3). El espectro de hospedadores infectados con Bb varió entre los Coleoptera (37%), Hemiptera (27%) y Dermaptera (1,3%). Mientras que el espectro de hospedadores infectados con Ma varió entre los Coleoptera (0,7%) y los Hemiptera (34%). El mayor espectro lo presentó Bb, encontrado en ocho especies de Coleoptera (cuatro familias), una especie de Dermaptera y cuatro especies de Hemiptera (tres familias), mientras que Ma fue encontrado infectando una especie de Coleoptera y tres especies de Hemiptera (dos familias). Nosotros obtuvimos 75 aislamientos fúngicos puros (48 de Bb y 27 de Ma), de los cuales 56 (33 de Bb y 23 Ma) fueron caracterizados morfológicamente.

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