Abstract Introduction: The use of arthropods in ecological studies in the tropical dry forest (TDF) of Colombia focused mainly on spiders, butterflies, ants, and dung beetles; therefore, it is necessary to understand the seasonal dynamics of the other groups such as Geadephaga in this ecosystem. Objective: To evaluate the spatio-temporal variations and the effect of environmental conditions on the diversity of the Geadephaga communities in two TDF fragments in the Colombian Caribbean. Methods: This study was conducted during four sampling events between February and June 2018, each lasting four days, and four nights. Four sampling stations were selected in each locality (Reserva Campesina La Montaña = RCM and Reserva La Flecha = RLF), separated 350 m one from another, with square plots of 50 × 50 m. A light trap was installed in the center of each square, while pitfall traps were installed in the four vertices, and manual capture, beating sheets and leaf litter sieve were carried out. Results: A total of 348 Carabidae and 114 of Cicindelidae were captured. In both fragments, the richness and abundance presented the lowest values in dry season, while the highest values were observed during the rainy season. Tetracha affinis (Dejean, 1825) was the most abundant species in RCM during rainy season. Conclusions: The richness variation and abundance of Geadephaga corresponds to a seasonal pattern at both locations. A high dissimilarity between the communities of Geadephaga from the two fragments was found, despite having similar environmental conditions.

Resumen Introducción: El uso de artrópodos en estudios ecológicos en el bosque seco tropical (Bs-T) de Colombia se centra mayormente en arañas, mariposas, hormigas y escarabajos coprófagos; por lo tanto, es necesario comprender como es la dinámica estacional de otros grupos como Geadephaga en este ecosistema. Objetivo: Evaluar la variación espacio-temporal y el efecto de las condiciones ambientales sobre la diversidad de las comunidades de Geadephaga en dos fragmentos de Bs-T en el Caribe colombiano. Métodos: El estudio se llevó a cabo en cuatro eventos de muestreo entre febrero y junio de 2018; cada uno con una duración de cuatro días y cuatro noches. En cada localidad (Reserva Campesina La Montaña = RCM y Reserva La Flecha = RLF), se marcaron cuatro estaciones distanciadas 350 m, con parcelas de 50×50 m. En el centro de cada parcela se instaló una trampa de luz, mientras que en los cuatro vértices se instalaron trampas de caída, y se realizó captura manual, cernido de hojarasca y perturbación de follaje. Resultados: Se capturó un total de 348 ejemplares de Carabidae y 114 de Cicindelidae. La riqueza y la abundancia presentaron los valores más bajos durante el período seco, mientras que los mayores valores se observaron durante el período de lluvias, en ambos fragmentos. Tetracha affinis (Dejean, 1825) fue la especie más abundante en la RCM durante el período lluvioso. Conclusiones: La variación de la riqueza y abundancia de Geadephaga responde a un patrón estacional en ambos fragmentos. Se encontró una amplia disimilitud entre las comunidades de Geadephaga de ambos fragmentos, pese a tener condiciones ambientales parecidas.

Abstract Introduction: The mangrove is one of the most important ecosystems on the planet, due to the ecological role it plays on coastlines, it provides development, protection, and feeding areas for various species. Objective: To determine the diversity and annual fluctuation of the cerambycid community, as well as the vertical distribution of species richness associated with the edge and interior of a mangrove in Tabasco, Mexico. Methods: The sampling was carried out from August 2016 to July 2017. The capture of insects was performed with interception traps baited with ethanol 70 % at 1.5, 6, and 12 m height, on the edge and interior of the mangrove. Results: A total of 382 specimens were collected, belonging to three subfamilies, 25 genera, and 36 species; Laminae was the subfamily most diverse with 24 species, followed by Cerambycinae with 11 species. At the edge of the mangrove 31 species were captured, and 21 in the interior. The 1D index determined that the edge was 2.51 more diverse than the interior, with a similarity of 61 %, sharing 16 species. The fluctuation of the communities on the edge and interior presented remarkable differences during the sampling year. On the edge, the greatest species richness was recorded at 6 m height and in the interior at 1.5 m and 6 m. Conclusions: Studies related to the vertical distribution of this group of insects, together with the increase in collection time and using complementary techniques, could give better results to inventory a larger number of species in the ecosystems.

Resumen Introducción: El manglar es uno de los ecosistemas más importantes del planeta, debido al papel ecológico que desempeña en las costas, ya que es el hábitat, o bien el área de refugio y alimentación para diversas especies. Objetivo: Determinar la diversidad y fluctuación anual de la comunidad de cerambícidos, así como la distribución vertical de la riqueza de especies asociadas al borde e interior de un manglar en Tabasco, México. Métodos: El muestreo se realizó de agosto 2016 a julio 2017. La captura de insectos se realizó con trampas de intercepción cebadas con alcohol etílico al 70 % a 1.5, 6 y 12 m de altura, en el borde e interior del manglar. Resultados: Se recolectaron un total de 382 especímenes de tres subfamilias, pertenecientes a 36 especies de 25 géneros; Laminae fue la subfamilia más diversa con 24 especies, seguida de Cerambycinae con 11. En el borde del manglar se capturaron 31 especies y en el interior 21. El índice 1D, determinó que el borde fue 2.51 más diverso que el interior, con una similitud del 61 %, al compartir 16 especies. La fluctuación de las comunidades en el borde e interior presentó notables diferencias durante el año de muestreo. En el borde, la mayor riqueza de especie se registró a los 6 m de altura y en el interior a 1.5 m y 6 m. Conclusión: Los estudios relacionados con la distribución vertical de este grupo de insectos, aunado al incremento del tiempo de recolecta y utilizando técnicas complementarias, podrían dar mejores resultados para inventariar el mayor número de especies en los ecosistemas.

ABSTRACT The cowpea is a legume with a high nutritional value and represents one of the most important self-consumption items in the country. However, under storage conditions its main problem are bruchids, which decrease the nutritional value and fertility of the seeds. Bruchids spread more frequently unintentionally throughout the world, this is due their adaptability. In the first months of 2023, damage was observed to stored cowpea grains of the species Vigna unguiculata, presenting round holes, decreasing the nutritional value and fertility of the seeds. The inspection of grains recorded the presence of a beetle, which was identified as Decellebruchus atrolineatus, Family Chrysomelidae, Subfamily Bruchinae.

RESUMEN El poroto es una leguminosa comestible con un alto valor nutritivo y representa uno de los rubros de autoconsumo más importantes en el país. Sin embargo, en condiciones de almacenamiento su principal problema son los brúquinos, quienes disminuyen el valor nutricional y la fertilidad de las semillas. Por la adaptación que poseen, los brúquinos, se diseminan con mayor frecuencia de manera involuntaria. En los primeros meses del año 2023, fueron observados daños en granos almacenados de poroto de la especie Vigna unguiculata, presentando orificios redondeados. La inspección de dichos granos registró la presencia de un coleóptero, que fue identificado como Decellebruchus atrolineatus, Familia Chrysomelidae, Subfamilia Bruchinae.

ABSTRACT Plants undergoing insect infestation release herbivore-induced plant volatiles (HIPVs) into their environment, which are then used by natural enemies for their benefit. The pest Aleurothrixus floccosus, which affects citrus orchards in northern Chile, specifically at Pica Oasis, poses a year-round threat. Recently, the introduction of the exotic ladybird Clitostethus arcuatus has been noted as a predator of A. floccosus. This study delved into how HIPVs emitted from tangelo (Citrus reticulata × C. ×paradisi Macfad.) and lime (C. ×aurantifolia (Christm.) Swingle) infested-shoots impact the behavioral responses of C. arcuatus. The volatile compounds were collected using the headspace technique, revealing notable qualitative changes after herbivory. In two-choice bioassays, the HIPVs elicited an attractive response in C. arcuatus compared to A. floccosus. At concentrations of 10 and 100 µg mL-1, the predators displayed a distinct preference for methyl salicylate (MeSA). These findings underscore that C. arcuatus exploits the HIPVs emitted from citrus infested-shoots, fostering tritrophic interactions. Exploring the impact of whitefly attacks on other fruit trees, emerges as a significant avenue for future investigation.

Resumen Los márgenes de las rutas que contienen vegetación natural brindan condiciones biológicas estables y promueven la biodiversidad. Estas áreas son importantes para mejorar los servicios ecosistémicos en los paisajes agrícolas. Los objetivos de este estudio fueron i) evaluar la diversidad de insectos como visitantes florales (excluyendo apiformes), y la riqueza de especies de plantas en los márgenes de las rutas, ii) determinar los Grupos Funcionales de insectos registrados como visitantes florales en los márgenes de rutas, y iii) analizar el rol ecológico de los insectos presentes en ocho márgenes de rutas ubicados en la región centro-este de la provincia de Santa Fe, Argentina. El estudio se realizó a lo largo de cuatro rutas provinciales (N°. 6, 10, 62 y 64) y la ruta nacional N°. 19; de noviembre de 2013 a septiembre de 2015. Se registraron un total de 1614 insectos, Oxysarcodexia varia (Walker) (Diptera: Sarcophagidae), Allograpta exotica (Wiedemann) (Diptera: Syrphidae) y Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), fueron las especies más abundantes. Las familias Brassicaceae, Apiaceae y Asteraceae recibieron el mayor número de visitas de insectos. Se registraron un total de 225 interacciones planta-insecto. Se discute la importancia de los márgenes de ruta con vegetación natural para proporcionar alimento y refugio a insectos polinizadores, depredadores, parasitoides, herbívoros y descomponedores.

Abstract The roadside margins that contain natural vegetation provides biological stable conditions and promote biodiversity. These areas are important to enhance ecosystem services in agricultural landscapes. The aims of this study were i) to assess the diversity of insects as floral visitors (excluding apiformes), and plant species richness in roadside margins, ii) to determine the Functional Groups of insects recorded as floral visitors of roadside margins, and iii) to analyze the ecological role of insects presents in eight roadside margins located in the central-eastern region of the Santa Fe province. The study was conducted along four provincial roads (No. 6, 10, 62, and 64) and the national road No. 19, on November 2013 to September 2015. A total of 1614 insects were recorded. Oxysarcodexia varia (Walker) (Diptera: Sarcophagidae), Allograpta exotica (Wiedemann) (Diptera: Syrphidae) and Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), were the most abundant species. The families Brassicaceae, Apiaceae, and Asteraceae received the highest number of insect visits. A total of 225 plant-insect interactions were recorded. The importance of roadside margin with natural vegetation to provide food and shelters for pollinators, predators, parasitoids, herbivores, and decomposers insects is discussed.

Abstract The maize weevil, Sitophilus zeamais Motschulsky, 1855 (Coleoptera: Curculionidae), generally reaches pest status in stored grain. Chemical control is the most used method for population suppression, which can cause adverse impacts, thus creating a need for alternatives such as using inert powders. The present work aims to verify the effect of different concentrations of different types of inert powders on the mortality of S. zeamais in the laboratory. To this end, the experiments were carried out in a completely randomized design, with 13 treatments and four replications, ten adults per replication, where the effect of different inert powders (basalt powder, gypsum powder, and diatomaceous earth) was tested at concentrations of 0.025 g, 0.05 g, 0.1 g and 0.2 g/20 g of corn grains. Variance, normality, and homoscedasticity tests were applied in addition to controlling efficiency (CE%), median lethal time (TL50), and survival curves. All treatments caused mortality in S. zeamais, and all concentrations with diatomaceous earth were more efficient, with 100% mortality at 20 days, followed by the treatment of 0.2 g of gypsum powder/20 g of corn grains, with superior efficiency, to 95% in 20 days and 100% in 30 days. The results indicated that treatments with diatomaceous earth had the highest mortality rate and the best average survival time. weevil Motschulsky 185 Coleoptera (Coleoptera Curculionidae, Curculionidae , Curculionidae) grain suppression impacts S laboratory end design 1 replications replication basalt powder 0025 0 025 0.02 005 05 0.0 01 0. 02 2 g20 g/2 grains Variance normality CE%, CE CE% (CE%) TL50, TL50 TL (TL50) curves efficient 100 powder20 powder/2 95 3 18 002 00 g2 g/ (CE% TL5 (TL50 10 powder2 powder/ 9 (CE (TL5 (TL

Resumo O gorgulho-do-milho, Sitophilus zeamais Motschulsky, 1855 (Coleoptera: Curculionidae), geralmente atinge o status de praga em grãos armazenados. O controle químico é o método mais utilizado para sua supressão populacional, podendo causar impactos adversos, surge assim a necessidade de alternativas como o uso de pós inertes. O presente trabalho tem como objetivo verificar o efeito de diferentes concentrações de diferentes tipos de pós inertes na mortalidade de S. zeamais no laboratório. Para tanto, os experimentos foram realizados em delineamento inteiramente casualizado, com 13 tratamentos e quatro repetições, 10 adultos por repetição. Onde testou-se o efeito de diferentes pós inertes (pó de basalto, pó de gesso e terra diatomácea), nas concentrações de 0,025 g, 0,05 g, 0,1 g e 0,2 g/20 g de grãos de milho. Sendo aplicados testes de variância, normalidade e homocedasticidade, além de eficiência de controle (CE%), tempo letal mediano (TL50) e curvas de sobrevivência. Todos os tratamentos causaram mortalidade em S. zeamais, e todas as concentrações com terra diatomácea foram mais eficientes com 100% de mortalidade aos 20 dias, seguido do tratamento de 0,2 g de pó de gesso/20 g de grãos de milho, com eficiência superior a 95% aos 20 dias e 100% em 30 dias. Os resultados indicaram que os tratamentos com terra diatomácea apresentaram a maior taxa de mortalidade e a melhor média em termos de tempo de sobrevivência. gorgulhodomilho, gorgulhodomilho gorgulho milho gorgulho-do-milho Motschulsky 185 Coleoptera (Coleoptera Curculionidae, Curculionidae , Curculionidae) armazenados populacional adversos S laboratório tanto casualizado 1 repetições repetição testouse testou se basalto diatomácea, diatomácea) 0025 0 025 0,02 005 05 0,0 01 0, 02 2 g20 g/2 variância homocedasticidade CE%, CE CE% (CE%) TL50 TL (TL50 sobrevivência 100 gesso20 gesso/2 95 3 18 002 00 g2 g/ (CE% TL5 (TL5 gesso2 gesso/ 9 (CE (TL

Resumo Myochrous armatus (Baly, 1865) (Coleoptera: Chrysomelidae) causa perdas consideráveis às lavouras de soja no Brasil e em vários outros países da América do Sul. A aplicação de inseticidas biológicos pode ser uma alternativa eficaz para suprimir esta praga. O objetivo deste estudo foi avaliar a eficácia de inseticidas microbiológicos formulados a partir dos fungos Beauveria bassiana + Metarhizium anisopliae (Bometil) e B. bassiana (Ballvéria), e bactéria Bacillus thuringiensis (Acera) isoladamente e em combinação com os inseticidas químicos fipronil, etiprole e clorpirifós, contra adultos de M. armatus. Os inseticidas à base de B. bassiana + M. anisopliae foram mais patogênicos que os à base de B. bassiana, causando taxas de mortalidade acumuladas nos dez dias com 85,0 e 65,0% respectivamente. Em contraste, B. thuringiensis causou 92,5% de mortalidade. Estes produtos sozinhos e em combinação foram eficazes para o controlo nas suas concentrações mais baixas. Portanto, o uso de inseticidas microbiológicos individualmente ou em combinação com inseticidas químicos é uma alternativa promissora para o manejo integrado de M. armatus. Baly, Baly (Baly 1865 Coleoptera (Coleoptera Chrysomelidae Sul praga Bometil (Bometil B Ballvéria, Ballvéria , (Ballvéria) Acera (Acera fipronil clorpirifós M 850 85 0 85, 650 65 65,0 respectivamente contraste 925 92 5 92,5 baixas Portanto 186 (Ballvéria 8 6 65, 9 92, 18 1

Abstract Myochrous armatus (Baly, 1865) (Coleoptera: Chrysomelidae) causes considerable losses to soybean crops in Brazil and several other South American countries. Applying biological insecticides can be an effective alternative to suppressing this pest. The objective of this study was to assess the efficacy of microbiological insecticides formulated from the fungi Beauveria bassiana + Metarhizium anisopliae (Bometil) and B. bassiana alone (Ballvéria), and the bacterium Bacillus thuringiensis (Acera) alone and in combination with the chemical insecticides fipronil, ethiprole and chlorpyrifos, against M. armatus adults. The insecticides based on B. bassiana + M. anisopliae were found to be more pathogenic than those based on B. bassiana, causing cumulative mortality rates in the ten days of 85.0 and 65.0% respectively. In contrast, B. thuringiensis caused 92.5% mortality. These products alone and in combination were effective for control at their lowest concentrations. Therefore, the use of microbiological insecticides individually or in combination with chemical insecticides is a promising alternative for the integrated management of M. armatus. Baly, Baly (Baly 1865 Coleoptera (Coleoptera Chrysomelidae countries pest Bometil (Bometil B Ballvéria, Ballvéria , (Ballvéria) Acera (Acera fipronil chlorpyrifos M adults 850 85 0 85. 650 65 65.0 respectively contrast 925 92 5 92.5 concentrations Therefore 186 (Ballvéria 8 6 65. 9 92. 18 1

Abstract Zatrephina lineata (Coleoptera: Chrysomelidae) is a phytophagous insect, mainly of plants of the genera Ipomoea and Mikania. The objective was to study the development, survival and to describe the life stages of Z. lineata fed on leaves of Ipomoea pes-caprae. Biological observations were made daily with the aid of a stereoscopic microscope and the instars of this insect identified by the exuvia left between one moulting and the next. The duration of development and survival of the egg, larva and pupa stages and the first, second, third, fourth and fifth instars and of the nymph stage of Z. lineata differed, but not between sexes of this insect. The duration of development of Z. lineata was longer in the larval stage and in the fifth instar, and its survival greater in the egg and pupa stages and in the first and fifth instars. Zatrephina lineata eggs, cream-colored, are ellipsoid and deposited in groups on the adaxial surface of older I. pes-caprae leaves. The larvae of this insect go through five instars, with the first three being gregarious with chemo-behavioral defenses. The exarated pupae of Z. lineata, light yellow in color and with an oval shape flattened dorsoventrally, attach to the abaxial surface of the I. pes-caprae leaves. The shape of adults of this insect is oval, straw yellow in color with lighter longitudinal stripes and females are slightly larger than males. Coleoptera (Coleoptera Chrysomelidae Mikania Z pescaprae. pescaprae pes caprae. caprae next second third differed instar eggs creamcolored, creamcolored cream colored, colored cream-colored I chemobehavioral chemo behavioral defenses dorsoventrally males

Resumo Zatrephina lineata (Fabricius, 1787) (Coleoptera: Chrysomelidae) é um inseto fitófago, principalmente de plantas dos gêneros Ipomoea e Mikania. O objetivo foi estudar o desenvolvimento, a sobrevivência e descrever as fases de vida de Z. lineata alimentada com folhas de Ipomoea pes-caprae. Observações biológicas foram feitas diariamente com auxílio de microscópio estereoscópico e os ínstares desse inseto identificados pela exúvia deixada entre uma muda e outra. A duração do desenvolvimento e sobrevivência dos estágios de ovo, larva e pupa e dos primeiro, segundo, terceiro, quarto e quinto ínstares e do periodo ninfal de Z. lineata diferiu, mas não entre os sexos deste inseto. A duração do desenvolvimento de Z. lineata foi maior na fase larval e no quinto ínstar, e sua sobrevivência maior nas fases de ovo e pupa e no primeiro e quinto ínstares. Os ovos de Z. lineata, de cor creme, são elipsoides e depositados em grupos na superfície adaxial das folhas mais velhas de I. pes-caprae. As larvas desse inseto passam por cinco ínstares, sendo os três primeiros gregários com defesas quimio-comportamentais. As pupas exaradas de Z. lineata, de cor amarelo claro e formato oval achatado dorsoventralmente, fixam-se na superfície abaxial das folhas de I. pes-caprae. O formato dos adultos deste inseto é oval, de cor amarelo palha com listras longitudinais mais claras e as fêmeas são ligeiramente maiores que os machos. Fabricius, Fabricius (Fabricius 1787 Coleoptera (Coleoptera Chrysomelidae fitófago Mikania Z pescaprae. pescaprae pes caprae. caprae pes-caprae outra segundo terceiro diferiu ínstar creme I quimiocomportamentais. quimiocomportamentais quimio comportamentais. comportamentais quimio-comportamentais dorsoventralmente fixamse fixam se machos 178 17 1

Resumo No norte central do Chile, lagoas efêmeras constituem corpos de água isolados e pouco profundos, com um habitat favorável para a fauna adaptada as mudanças sazonais que as zonas úmidas estão sujeitas. Com relação a estes ecossistemas, sabe-se pouco sobre sua fauna, principalmente a de insetos. O objetivo do presente estudo foi caracterizar a riqueza, composição, estrutura e similaridade das comunidades de insetos que habitam as lagoas temporárias de Huentelauquén (29º S, Região de Coquimbo, Chile). Usando armadilhas de interceptação, se capturou um total de 10.762 indivíduos, pertencentes a 7 ordens, 27 famílias e 51 espécies. Coleoptera e Hymenoptera foram as ordens mais representativas, enquanto Neuroptera, Orthoptera e Plecoptera foram grupos pouco representativos. Os estimadores não paramétricos avaliados mostraram valores de riqueza superiores ao observados para todas as lagoas estudadas, e suas curvas de acumulação parecem indicar que o inventario da comunidade estudada está incompleto. A análise hierárquica e de ordenamento revelou agrupamentos de lagoas correspondentes a zona nordeste e sudeste de Huentelauquén. Preliminarmente encontramos uma correlação negativa entre a área de lagoas efêmeras e a riqueza (espécies) e abundância de insetos. É necessário realizar estudos adicionais (sobre outros grupos de artrópodes e em outras estações do ano) para melhor compreensão dos processos locais de extinção e colonização das espécies que habitam estes frágeis ambientes costeiros estudados.

Abstract In northern central Chile, ephemeral pools constitute shallow isolated water bodies with a favourable habitat for fauna adapted to seasonal changes. Based on the limited knowledge about the fauna—particularly insects—associated to these ecosystems, the objective of this study was to characterize the richness, composition, structure and similarity of the insect communities associated with ephemeral pools in Huentelauquén (29º S, Coquimbo Region, Chile). By using pitfall traps, 10,762 individuals were captured, represented by 7 orders, 27 families, and 51 species. Coleoptera and Hymenoptera were the best represented orders, with Neuroptera, Orthoptera and Plecoptera being poorly represented groups. The non-parametric estimators evaluated showed wealth values above those observed for all the studied pools, and their accumulation curves suggest the existence of an incomplete species inventory in the studied community. Additionally, the hierarchical and ordering analysis showed groupings of pools located in the northwest and southeast of Huentelauquén. Preliminarily we found a negative correlation between the area of the pools and the richness (species) and abundance of insects. Additional studies (on other arthropod groups and other seasons of the year) could provide a better understanding of the local processes of extinction and colonization of the species inhabiting these fragile coastal environments.

Resumo A fauna aquática de insetos continua sendo uma ferramenta importante para a bioindicação de distúrbios ambientais, ao mesmo tempo em que mantém um sistema aquático saudável. O objetivo do estudo foi documentar e identificar a diversidade e os padrões de distribuição dos insetos aquáticos, um aspecto altamente ignorado no Catar. Seguindo os procedimentos padrão, as amostras foram coletadas em hábitats aquáticos durante o período de outubro de 2015 a maio de 2017, mensalmente. Um total de 11.287 indivíduos, pertencentes a seis ordens, foram capturados. Dípteros foram os mais abundantes, com as porcentagens de 71,01 (n = 8.015), enquanto a menor porcentagem foi observada para Coleópteros 0,04 (n = 05). Doze famílias de insetos foram identificadas, destas, cinco foram registradas sob Diptera, seguido por Hemiptera (03), enquanto Coleoptera, Tricoptera, Odonata e Ephemeroptera foram representados por famílias únicas. Dentre as localidades selecionadas, Dipterans foram coletados em 10 estações, seguidos por Hemiptera (9), Coleoptera (4), Odonota (4), Ephemeroptera (3) e Trichoptera (1), respectivamente. Entre as amostras de corpos d'água, os riachos foram os hábitats mais preferidos (n = 2.767), enquanto as piscinas de água potável foram os menos (27). Além disso, o maior índice de diversidade de Simpson de 1,48 e o menor de 0,47 foi registrado para piscina de esgoto inundada e recipientes de plástico, respectivamente, enquanto os valores de baixa uniformidade foram observados para lagoas e menos de 1 valores de diversidade de Margalef foram observados para todos os hábitats. Este estudo documenta os padrões de diversidade e distribuição de insetos aquáticos e fornece uma linha de base para os estudos futuros do Catar.

Abstract Aquatic insect fauna remains an important tool for bio indication of environmental disturbance, while maintaining a healthy aquatic system. The purpose of the study was to document and to identify the diversity and distribution patterns of aquatic insect, a highly ignored aspect from the Qatar. Following the standard procedures, the samples were collected from aquatic habitats during the period October 2015 to May 2017 on monthly basis. A total of 11,287 individuals, belonging to 6 orders were captured. Dipterans were the abundant with the percentages of 71.01 (n=8,015), while the lowest percentage was observed for Coleoptera 0.04 (n=05). Twelve insects families were identified, among these five were reported under Diptera, followed by Hemiptera (03), while Coleoptera, Tricoptera, Odonata, and Ephemeroptera were represented by single families. Among the selected localities, Dipterans were collected from 10 stations, followed by Hemiptera (9), Coleoptera (4), Odonota (4), Ephemeroptera (3) and Trichoptera (1) respectively. Among the water bodies samples, streams were the most preferred habitats (n=2,767), while drinking water pools were the least (27). Moreover, the highest Simpson diversity index of 1.48 and lowest of 0.47 was recorded for flooded sewage pool and plastic containers respectively, while the low evenness values were observed for ponds, and less than 1 Margalef’s diversity values were seen for all habitats. This study documents the patterns of the diversity and distribution of aquatic insects, and provides a baseline for the future studies from Qatar.

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.

ABSTRACT The action of pest insects directly affects agricultural productivity, thus requiring a large number of insecticide applications for their control. The main products used come from the organophosphate, pyrethroid and spinosyn groups, but indiscriminate use of these products can cause negative effects, especially on soil organisms. Thus, the objective of this study was to evaluate changes in soil macrofauna caused by the application of insecticides in a fruit production area. The insecticides malathion, deltamethrin and spinetoram were applied at the maximum dose indicated by the manufacturer, using twice the volume of solution for terrestrial applications. The experimental design was randomized blocks, consisting of four treatments with five replicates each, distributed in five blocks. After application, soil macrofauna was evaluated according to the Tropical Soil Biology and Fertility (TSBF) method. Individuals were quantified and identified by taxonomic groups for further determination of density, richness, Shannon-Weaver diversity index (H') and Pielou evenness index (J’). Malathion, deltamethrin and spinetoram did not affect the total density, as well as the density per taxonomic group, except for the Coleoptera group, which had lower density of individuals per m2 in soil treated with malathion and deltamethrin, differing from the soils treated with spinetoram and from the control treatment. Therefore, it is found that deltamethrin applications reduce the density of Coleoptera in the soil under the conditions tested. productivity organophosphate effects organisms Thus area manufacturer blocks each TSBF (TSBF method richness ShannonWeaver Shannon Weaver H (H' J. J . (J’) Malathion group m treatment Therefore tested (H (J’ (J

RESUMO A ação de insetos-praga afeta diretamente a produtividade agrícola, demandando assim grande quantidade de aplicações de inseticidas para o controle dos mesmos. Os principais produtos utilizados são advindos dos grupos organofosforados, piretróides e espinosinas, no entanto, o uso indiscriminado desses produtos pode gerar efeitos negativos, principalmente aos organismos do solo. Com isso, objetivou-se neste estudo avaliar as alterações sofridas pela macrofauna do solo provocada pela aplicação de inseticidas em área de produção frutífera. Os inseticidas malationa, deltametrina e espinetoram, foram aplicados na dosagem máxima indicada pelo fabricante, utilizando-se o dobro do volume de calda para aplicações terrestres. O delineamento experimental ocorreu em blocos ao acaso, constituído por quatro tratamentos com cinco repetições cada, distribuídas em cinco blocos. Após a aplicação, a macrofauna do solo foi avaliada de acordo com o método Tropical Soil Biology and Fertility (TSBF). Foi realizada a quantificação e identificação dos indivíduos por grupos taxonômicos, para posterior determinação da densidade, riqueza, índices de diversidade de Shannon-Weaver (H') e equabilidade de Pielou (J’). Constatou-se que malationa, deltametrina e espinetoram não afetaram a densidade total, assim como a densidade por grupo grupos taxonômicos, exceto o grupo Coleoptera que apresentou menor densidade de indivíduos por m2 em solo tratado com malationa e deltametrina, diferindo dos solos tratados com o inseticida espinetoram e ao tratamento controle. Portanto, constata-se que aplicações de deltametrina reduzem a densidade de Coleoptera do solo, sob as condições testadas. insetospraga insetos praga agrícola mesmos organofosforados espinosinas entanto negativos isso objetivouse objetivou se frutífera fabricante utilizandose utilizando terrestres acaso cada TSBF. TSBF . (TSBF) taxonômicos riqueza ShannonWeaver Shannon Weaver H (H' J. J (J’) Constatouse Constatou total m Portanto constatase constata testadas (TSBF (H (J’ (J

ABSTRACT Great advances were made in recent years regarding the description of immatures of Cassidinae and their taxonomy as a whole, but many taxa remain undescribed. This study focuses on updating morphological data for Hybosa acutangula Spaeth, 1913 (Chrysomelidae: Cassidinae: Ischyrosonychini), a tortoise beetle native of South America, which was collected in Fridericia florida (DC.) L. G. Lohmann in the Brazilian Cerrado. We provide descriptions and illustrations of the morphology of the larva, pupa, and genitalia of adults, all of which are novel for this genus. The main discerning features for this species among other Ischyrosonychini are the lack of dark patterns in the dorsum of either the larvae, being limited to the dark scoli and the cranium, or the pupae, and a much reduced anal fork. We also present the first record of parasitism by Chalcididae wasps, Brachymeria sp. Westwood, 1832 and Conura sp. Spinola, 1837. Morphological comparisons remain limited demanding further studies with other species of Ischyrosonychini, as to better understand the placement of this species within the taxonomy of tortoise beetles. whole undescribed Spaeth 191 Chrysomelidae (Chrysomelidae , Ischyrosonychini) America DC. DC (DC. L G Cerrado larva pupa adults genus larvae cranium pupae fork wasps sp Westwood 183 Spinola 1837 beetles 19 (DC 18 1

ABSTRACT Bird droppings are an unusual food resource for coprophagous insects and used mostly by opportunistic decomposers. Among them, dung beetles feed mainly on dung, although the species differ in their trophic plasticity. Here we report a record of a dung beetle, Canthidium cf. gracilipes, reaching and manipulating the dropping of a passeriform bird, Dendrocincla fuliginosa (Dendrocolaptidae). The behavior was observed in an urban forest fragment located in the Amazonian city of Manaus, Brazil. Two hours after the bird defecated, the dung beetle reached the dropping and started manipulating them with its fore- and hindlegs. It did not eat the dung, though. For a clear understanding of the relationships between bird droppings and Amazonian dung beetles, it will be important to perform standardized experiments with a wide variety of native dung and carrion types. decomposers plasticity cf gracilipes Dendrocolaptidae. Dendrocolaptidae . (Dendrocolaptidae) Manaus Brazil defecated fore hindlegs though types (Dendrocolaptidae

RESUMO Excrementos de aves correspondem a um recurso alimentar pouco comum para insetos coprófagos, sendo utilizados geralmente por decompositores oportunistas. Entre eles, os rola bostas se alimentam principalmente de fezes, entretanto a plasticidade alimentar varia entre as espécies. Neste estudo nós reportamos um registro do rola bosta Canthidium cf. gracilipes se aproximando de e manipulando os excrementos de uma ave passeriformes, Dendrocincla fuliginosa (Dendrocolaptidae). O comportamento foi observado em um fragmento localizado na cidade amazônica de Manaus, Brasil. Duas horas depois de que a ave defecou, o rola bosta se aproximou das fezes e começou a manipulá-las com as patas anteriores e posteriores. Entretanto, não se observou consumo do excremento. Para uma compreensão mais clara das relações entre os excrementos de aves e os rola bostas amazônicos, é importante a realização de experimentos padronizados com uma ampla variedade de fezes e carcaças nativas. coprófagos oportunistas eles espécies cf passeriformes Dendrocolaptidae. Dendrocolaptidae . (Dendrocolaptidae) Manaus Brasil defecou manipulálas manipulá las posteriores Entretanto excremento amazônicos nativas (Dendrocolaptidae

ABSTRACT Forensic entomology has been developing in Brazil in recent years. In cases where traditional forensic methods cannot accurately determine the postmortem interval (PMI), entomological evidence can be crucial. In this novel study, we present the first results of the Forensic Entomology Division at Santa Catarina Scientific Police, southern Brazil, formally established in January 2022. From Jan 2022 to July 2023, minimum PMI was calculated based on entomological evidence in 34 cases. A total of 21 species of insects (16 species of Diptera belonging to 6 families and 5 species of Coleoptera belonging to 4 families) were collected from human bodies at different decomposition stages and in different types of environments. The most abundant and relevant species to estimate PMI were: Chrysomya albiceps (in 38% of the cases), followed by Hermetia illucens (18%), Oxelytrum discicolle (14%), Chrysomya megacephala (12%) and Peckia (Pantonella) intermutans (12%). Some species were reported for the first time colonizing human corpses in Santa Catarina and used for the first time to estimate minimum PMI in Brazil. Understanding the entomofauna present on a human corpse becomes an important tool in death investigations and is essential for forensic entomology applications. Our findings provide better understanding of entomological evidence from Santa Catarina State and have important implications for the advancement of forensic entomology in Brazil. years PMI, , (PMI) crucial study Police 202 2023 3 2 16 (1 environments 38 cases, cases) 18%, 18 18% (18%) 14%, 14 14% (14%) 12% 12 (12% Pantonella (Pantonella 12%. . applications (PMI 20 1 ( (18% (14% (12 (18 (14