Resumen Introducción El mosco fungoso negro Bradysia impatiens Johannsen es una plaga de importancia en los viveros forestales tecnificados de México, debido a que ocasiona mortalidad de la planta; sin embargo, los estudios sobre monitoreo de adultos son escasos. Objetivos Determinar la trampa más adecuada para el monitoreo de B. impatiens, caracterizar sus niveles poblacionales e identificar organismos asociados, entre ellos sus enemigos naturales. Materiales y métodos Se evaluó el efecto de atracción de B. impatiens a dos tipos de trampas pegajosas amarillas (circulares y bandera) y una incolora. Después de la selección de la mejor trampa, se comparó la captura de B. impatiens y organismos asociados en cuatro viveros forestales para determinar niveles poblacionales de la especie. Los datos de captura se analizaron con modelos lineales generalizados mediante regresión binomial negativa. Resultados y discusión La trampa bandera fue la más eficiente para la captura de adultos. Con base en la captura semanal, se calificaron subjetivamente tres niveles poblacionales: baja (<30 adultos), media (30-60 adultos) y alta (>60 adultos). Se encontró a Coenosia attenuata Stein como enemigo natural de la plaga; sin embargo, el porcentaje de captura fue bajo (1.78 %), por lo que las trampas no representan amenaza para sus poblaciones. También se encontró a Kleidotoma sp., posible parasitoide de la plaga y de C. attenuata. Conclusiones Es necesario un plan de manejo integrado de plagas para B. impatiens, que incluya la trampa bandera y el depredador C. attenuata como control biológico en viveros. La mosca C. attenuata, depredadora de B. impatiens, se registra por primera vez en Tlaxcala.

Abstract Introduction The Dark Winged Fungus Gnat, Bradysia impatiens Johannsen, is a significant pest in modern forest nurseries in Mexico, as it causes plant mortality. However, studies on adult monitoring are scarce. Objectives Determine the most suitable trap for monitoring B. impatiens, characterize its population levels and identify associated organisms, including its natural enemies. Materials and methods The attraction effect of B. impatiens to two types of yellow sticky traps (circular and flag paper trap) and a colorless trap was evaluated. After selecting the best trap, the capture of B. impatiens and associated organisms was compared across four forest nurseries to determine the species' population levels. Capture data were analyzed using generalized linear models with negative binomial regression. Results and discussion Flag paper trap was the most efficient for capturing adults. Based on weekly captures, three population levels were subjectively rated: low (<30 adults), medium (30-60 adults), and high (>60 adults). Coenosia attenuata Stein was found as a natural enemy of the pest; however, the capture percentage was low (1.78 %), so the traps do not pose a threat to their populations. Kleidotoma sp., a possible parasitoid of the pest and C. attenuata, was also found. Conclusions An integrated pest management plan for B. impatiens is necessary, including flag paper trap and the predator C. attenuata as biological control in nurseries. C. attenuata, a predator of B. impatiens, is recorded for the first time in Tlaxcala.

Abstract In Hesperiidae (Lepidoptera), many species build shelters during their ontogeny which may be serve as a scape strategy to reduce attacks from natural enemies and dislodgment from the host plant. This paper provides bioecological information regarding host plant, natural parasitism, and distribution of Cynea (Cynea) diluta (Herrich-Schäffer) (Hesperiidae: Hesperiinae) collected near remnants of the Atlantic Forest "Centro de Endemismo Pernambuco" (CEPE), Northeast Region of Brazil. Larvae and pupae, the later showing signs of parasitism, were collected from a garden at the Universidade Federal de Alagoas, Maceió, State of Alagoas, Brazil. They were brought to the laboratory to record emergences and possible parasitoids. Data from distribution were obtained from labels of hesperiid deposited from the Coleção Entomológica Padre Jesus Santiago Moure, Curitiba, State of Paraná. The host plant was identified as Alpinia purpurata (Vieill.) K. Schum. (Zingiberaceae). From the 13 larvae and two pupae collected in the environment, 20 specimens of Brachymeria sp. (Hymenoptera: Chalcididae) emerged from the pupae. This is the first report of parasitism on pupae of Cynea (C.) diluta.

Resumen En Hesperiidae (Lepidoptera), muchas especies construyen refugios durante su ontogenia que pueden servir como estrategia de escape para reducir los ataques de enemigos naturales y el desprendimiento de la planta huésped. Este artículo proporciona información bioecológica sobre la planta huésped, el parasitismo natural y la distribución de Cynea (Cynea) diluta (Herrich-Schäffer) (Hesperiidae: Hesperiinae) recolectada cerca de remanentes del Bosque Atlántico "Centro de Endemismo Pernambuco" (CEPE), región noreste de Brasil. Las larvas y pupas; estas últimas mostrando signos de parasitismo se recolectaron de un jardín de la Universidad Federal de Alagoas, Maceió, Estado de Alagoas, Brasil. Estas fueron llevadas al laboratorio para registrar emergencias y posibles parasitoides. Los datos de distribución se obtuvieron de etiquetas de hespéridos depositados en la Coleção Entomológica Padre Jesus Santiago Moure, Curitiba, Estado de Paraná. La planta huésped fue identificada como Alpinia purpurata (Vieill.) K. Schum. (Zingiberáceas). De las 13 larvas y dos pupas recolectadas en el ambiente, se identificaron 20 ejemplares de Brachymeria sp. (Hymenoptera: Chalcididae) que emergieron de las pupas. Este es el primer registro de parasitismo en pupas de Cynea (C.) diluta.

Resumen Se informa sobre nuevas asociaciones entre el parasitoide Habrobracon hebetor (Say) y dos géneros de coleópteros plaga de postcosecha en frutos descascarados de Juglans regia L, Carpophilus Stephens (Nitidulidae) y Oryzaephilus Ganglbauer (Silvanidae) en la provincia de La Rioja. Además, se registró este parasitoide a partir de larvas de Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae). Se amplía la distribución de H. hebetor para la provincia de La Rioja. Se proporcionan datos sobre porcentajes de parasitoidismo.

Abstract New associations are reported between the parasitoid Habrobracon hebetor (Say) and two genera of postharvest pest coleopters on shelled fruits of Juglans regia L, Carpophilus Stephens (Nitidulidae) and Oryzaephilus Ganglbauer (Silvanidae) in the province of La Rioja. Furthermore, this parasitoid was recorded from larvae of Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae). The distribution of H. hebetor is expanded to the province of La Rioja. Data on percentages of parasitoidism are provided.

Resumen Se evaluó la fluctuación poblacional de Aphis gossypii, Chloridea virescens, Anthonomus vestitus, Dysdercus peruvianus y Pectinophora gossypiella, y de sus enemigos naturales durante la campaña agrícola 2013-2014 del cultivo de algodón Tangüis en La Molina (Lima) mediante tres técnicas de muestreo (evaluación directa de la planta, caída por sacudida de la planta y trampas de caída). A. gossypii fue la plaga más abundante, siendo más importante en la etapa de desarrollo vegetativo, seguido por D. peruvianus y P. gossypiella, ambas con mayor importancia en el periodo de fructificación. Los insectos depredadores y arañas fueron hallados durante todo el periodo del cultivo, siendo los más frecuentes, en el caso de los insectos depredadores, Hippodamia convergens, Hyalochloria denticornis y Rhinacloa forticornis, y en las arañas Misumenops sp. morfo 1, Zelotes laetus y Theridion volubile. El parasitoidismo fue bajo o escaso en la mayoría de las plagas, resaltando Lysiphlebus testaceipes como parasitoide de A. gossypii por su abundancia al inicio en el desarrollo vegetativo del algodonero.

Abstract Population fluctuations of Aphis gossypii, Chloridea virescens, Anthonomus vestitus, Dysdercus peruvianus and Pectinophora gossypiella, besides their natural enemies were studied during the entire phenological period of a Tangüis cotton crop at La Molina (Lima), using three sampling techniques: direct plant evaluation, plant shake falls and pitfall traps. A. gossypii was the most abundant pest, being more important in the vegetative development, followed by D. peruvianus and P. gossypiella, both with greater importance in the fructification stage. Predatory insects and spiders were recorded during the whole crop period, where the most frequent were, in predatory insects Hippodamia convergens, Hyalochloria denticornis and Rhinacloa forticornis, and in spiders Misumenops sp. morpho 1, Zelotes laetus and Theridion volubile. Parasitoidism was low or scarce in most of the pests, highlighting Lysiphlebus testaceipes as A. gossypii parasitoid due to its abundance in the vegetative development of the cotton field.

ABSTRACT Nasonia vitripennis (Walker, 1836) (Hymenoptera: Pteromalidae) is a parasitoid involved in the biological control of several insects, including blow flies (Diptera, Calliphoridae) of economic importance. The aim of this study was to describe the morphological aspects of the immature stages of N. vitripennis and to record the postembryonic development time, using pupae of Chrysomya putoria (Wiedeman, 1830) as host. The experiment was conducted in a climatic chamber at 27°C/ day and 25°C/ night, with 60 ± 10% relative humidity and 14h photophase. Three experiment were conducted, each one with different host-parasitoid exposure times, of 12 hours, 16 hours and 24 hours respectively. In each experiment, the host:parasitoid relation applied was three host pupae of C. putoria to one parasitoid female. The experiment lasted 17 days, and it was used nine pupae per day totalizing 153 host pupae. The parasitoidism rate was 16.3% (12h), 40.5% (16h) and 94.1% (24h), respectively. The immature development duration of N. vitripennis with 16 and 24 hours of exposure, was as follows: egg stage (1st day), larvae (2nd to 6th day), prepupae (7th day), pupae (from 8th to 13th day) and pharate adult (14th day). The emergence of the adult parasitoids occurred on the 16th and 15th day with the exposure times of 16 and 24 hours, respectively. The exposure period of 24 hours was the ideal to observe the development time and to characterize the immature of N. vitripennis when compared to the 16 and 12 hours. Walker, Walker (Walker 1836 Hymenoptera (Hymenoptera Pteromalidae insects Diptera, Diptera (Diptera Calliphoridae importance N Wiedeman, Wiedeman (Wiedeman 1830 27C C 27 27°C 25C 25 25°C night 6 10 h photophase hostparasitoid 1 2 respectively female days 15 163 3 16.3 12h, 12h , (12h) 405 40 5 40.5 16h (16h 941 94 94.1 24h, 24h (24h) follows 1st st day, 2nd nd th 7th from 14th day. . 183 16. (12h 4 40. 9 94. (24h 18

ABSTRACT. Cotesia flavipes parasitizes Diatraea saccharalis, a pest that causes major losses to sugarcane production. The mass production of C. flavipes and its subsequent release onto sugarcane is one form of biological control of D. saccharalis. An essential factor for successfully fighting this pest is the development of host diets that can increase the efficiency of C. flavipes production. Palm oil contains saturated fatty acids, unsaturated fatty acids, and polyunsaturated linoleic acid. However, little is known about the effects of palm oil on C. flavipes production in the laboratory. Different concentrations of palm oil were added to the D. saccharalis diet and its nutritional indices were analyzed. Subsequently, the production and sex ratio of C. flavipes were determined. Our results indicated that the addition of higher palm oil concentrations to an artificial diet generated a high relative consumption rate (RCR) in D. saccharalis, and consequently a high relative metabolic rate (RMR), which resulted in a lower production of the parasitoid. In contrast, the lowest palm oil concentration in the artificial diet generated a low RMR and resulted in high-efficiency conversion of ingested food (ECI), enabling D. saccharalis to yield more C. flavipes. This suggests that palm oil influences the quantity of D. saccharalis ingested, which determines the number of C. flavipes that will be generated. In this study, supplementation of a D. saccharalis diet with 0.25% palm oil increased the production of C. flavipes. Therefore, this level of palm oil supplementation can aid in the production of C. flavipes on a laboratory-scale. Further research, including increasing the number of parasitoids, must be performed to mass-produce the augmentative releases of C. flavipes to manage D. saccharalis. ABSTRACT C D acids acid However laboratory analyzed Subsequently determined RCR (RCR RMR, , (RMR) parasitoid contrast highefficiency ECI, ECI (ECI) study 025 0 25 0.25 Therefore laboratoryscale. laboratoryscale scale. scale laboratory-scale research parasitoids massproduce produce (RMR (ECI 02 2 0.2 0.

ABSTRACT The rice stink bug, Tibraca limbativentris Stål (Hemiptera: Pentatomidae), is a significant pest of rice cultivation in Brazil and attacks plants during both vegetative and reproductive phases. Natural enemy surveys conducted in plantations located in Arari, Miranda do Norte, Matões do Norte, Santa Rita, and Viana (state of Maranhão, Brazil) led to the discovery of a new species of parasitoid, which is described in this study. Hexacladia lemosae Costa, Noyes & Machado sp. nov. (Hymenoptera: Encyrtidae) is the first species of its genus associated with T. limbativentris and develops as a gregarious endoparasitoid in adult stink bugs, occasionally in nymphs. The parasitoid emerges from the host while host is still alive. bug Hemiptera (Hemiptera Pentatomidae, Pentatomidae , Pentatomidae) phases Arari Norte Rita state Maranhão study Costa sp nov Hymenoptera (Hymenoptera Encyrtidae T bugs nymphs alive

ABSTRACT To correct errors in previous catalogs and update the Brazilian fauna, thirty-five species of Darwin wasps erroneously reported for Brazil are removed from the Taxonomic Catalog of the Brazilian Fauna, belonging to the following subfamilies: Anomaloninae (2 species), Banchinae (1), Campopleginae (8), Cremastinae (2), Cryptinae (8), Phygadeuontinae (3), Pimplinae (8), Tersilochinae (2), and Tryphoninae (1). Most species were incorrectly cataloged due to an incorrect interpretation of the species list created by Costa Lima in 1962, which mentions species occurring in neighboring countries but does not confirm their presence in Brazil. Thus, the Brazilian fauna of Ichneumonidae currently corresponds to 234 genera and 1,038 species. thirtyfive thirty five Fauna subfamilies 2 ( species, , species) 1, 1 (1) 8, 8 (8) 2, (2) 3, 3 (3) 1. . 1962 Thus 23 1038 038 1,03 (1 (8 (3 196 103 03 1,0 19 10 0

ABSTRACT We report for the first time a tritrophic relationship (host-parasitoid-hyperparasitoid) among Conocephalus saltator (Sausurre, 1859) (Orthoptera, Tettigoniidae), Ormia cfr. crespoi Tavares, 1965 (Diptera, Tachinidae), and Perilampus sp. (Hymenoptera, Perilampidae). Specimens of C. saltator were collected at the Parque Nacional do Iguaçu (Foz do Iguaçu, Paraná, Brazil) and reared in the laboratory, in order to detect eventual parasitoids. We collected and reared 904 katydids, with 113 of them parasitized, producing 123 fly puparia, and 18 puparia that developed to adults of Ormia cfr. crespoi. We also recorded the emergence of four hyperparasitoid wasps, Perilampus sp., from the fly puparia. hostparasitoidhyperparasitoid host parasitoid (host-parasitoid-hyperparasitoid Sausurre, Sausurre (Sausurre 1859 Orthoptera, Orthoptera (Orthoptera Tettigoniidae, Tettigoniidae , Tettigoniidae) cfr Tavares 196 Diptera, Diptera (Diptera Tachinidae, Tachinidae Tachinidae) sp Hymenoptera, Hymenoptera (Hymenoptera Perilampidae. Perilampidae . Perilampidae) C Foz Paraná Brazil laboratory parasitoids 90 katydids 11 parasitized 12 1 wasps 185 19 9

Resumo Palpita forficifera Munroe, 1959 (Lepidoptera: Crambidae) é a principal praga da oliveira (Olea europaea L., Oleaceae) no Brasil e seu manejo é dificil, pois há poucos produtos recomendados para seu controle. O objetivo do estudo foi avaliar a flutuação populacional de P. forficifera e avaliar os parasitoides de ovos e lagartas associados à praga em três olivais conduzidos sob diferentes sistemas de cultivo no estado do Rio Grande do Sul, Brasil. O estudo foi realizado entre outubro e maio, nas safras de 2017/18 e 2018/19, em pomares de oliveira de diferentes cultivares nos municípios de Pelotas e Rio Grande, Rio Grande do Sul, Brasil. A dinâmica populacional de P. forficifera variou em função da safra agrícola, dos meses amostrados e dos pomares (locais) avaliados. A maior infestação alcançou cerca de 60% das brotações em alguns meses, dependendo do pomar avaliado. Durante o período de infestação da praga, foi observada a ocorrência do parasitoide de ovos Trichogramma foersteri Takahashi, 2021 (Hymenoptera: Trichogrammatidae) juntamente com três parasitoides larvais pertencentes aos gêneros Dolichogenidea Viereck, 1911 e Hymenochaonia Dalla Torre, 1898 (Hymenoptera: Braconidae) e Temelucha Förster, 1869 (Hymenoptera: Ichneumonidae). Temelucha hilux Gauld, 2000 é registrado pela primeira vez em associação a um hospedeiro e sua distribuição no país é estendida para a região Sul do Brasil. Devido à escassez de informações sobre o manejo da praga, a ocorrência natural de inimigos naturais nos cultivos agrícolas é de suma importância para auxiliar no manejo da P. forficifera a campo. A dinâmica populacional de P. forficifera é influenciada também, pela comunidade de parasitoides, formada por no mínimo quatro espécies de himenópteros parasitoides. Assim, estratégias direcionadas para o manejo da P. forficifera devem ser bem elaboradas para manter e aumentar o controle biológico natural a campo. Munroe 195 Lepidoptera (Lepidoptera Crambidae Olea L L. Oleaceae dificil P maio 201718 2017 18 2017/1 201819 2018 19 2018/19 agrícola locais (locais avaliados 60 avaliado Takahashi 202 Hymenoptera (Hymenoptera Trichogrammatidae Viereck 191 Torre 189 Braconidae Förster 186 Ichneumonidae. Ichneumonidae . Ichneumonidae) Gauld 200 campo também Assim 20171 201 1 2017/ 20181 2018/1 6 20 2018/ 2

Abstract Palpita forficifera Munroe, 1959 (Lepidoptera: Crambidae) is the main pest of the olive tree (Olea europaea L., Oleaceae) in Brazil and its management has been difficult, as there are few products recommended for its control. This study aimed to evaluate the population dynamics of P. forficifera and the entomofauna of parasitoid eggs and larvae in three olive orchards under different cultivation systems, in Rio Grande do Sul state, Brazil. The study was carried out from October to May, in the 2017/18 and 2018/19 harvests, in olive orchards of different cultivars in the municipalities of Pelotas and Rio Grande, state of Rio Grande do Sul, Brazil. Population dynamics of P. forficifera varied according to the agricultural season, the months sampled, and the orchards (sites) evaluated. The highest infestation reached around 60% of the shoots in some months, depending on the orchard evaluated. During the pest infestation period, the occurrence of the egg parasitoid Trichogramma foersteri Takahashi, 2021 (Hymenoptera: Trichogrammatidae) was observed along with three larval parasitoids belonging to the genera Dolichogenidea Viereck, 1911, Hymenochaonia Dalla Torre, 1898 (Hymenoptera: Braconidae) and Temelucha Förster, 1869 (Hymenoptera: Ichneumonidae). Temelucha hilux Gauld, 2000 is recorded for the first time in association with a host, and its distribution in the country is extended to the southern region, from Brazil. Due to the scarcity of information on pest management, the natural occurrence of natural enemies in crops is of paramount importance in helping to manage P. forficifera in the field. The population dynamics of P. forficifera is also influenced by the parasitoid community, made up of at least four species of parasitic Hymenoptera. Therefore, strategies aimed at managing P. forficifera must be well developed in order to maintain and increase natural biological control in the field. Munroe 195 Lepidoptera (Lepidoptera Crambidae Olea L L. Oleaceae difficult P systems May 201718 2017 18 2017/1 201819 2018 19 2018/1 harvests season sampled sites (sites evaluated 60 period Takahashi 202 Hymenoptera (Hymenoptera Trichogrammatidae Viereck 1911 Torre 189 Braconidae Förster 186 Ichneumonidae. Ichneumonidae . Ichneumonidae) Gauld 200 host region field community Therefore 20171 201 1 2017/ 20181 2018/ 6 20 191 2

Abstract Telenomus remus (Hymenoptera: Scelionidae) is an efficient parasitoid of Spodoptera eggs. However, biological control programs require taxonomic, bioecological and behavioral studies of biological agents. Although the performance of T. remus in pest control has been evaluated, little is known about its behavioral aspects that can influence IPM tactics. The aim of this study was therefore to study the parameters related to the oviposition behavior of T. remus on Spodoptera frugiperda (Lepidoptera: Noctuidae) eggs. The experiment was conducted in the laboratory, where 17 females were transferred individually to arenas containing a mass of S. frugiperda eggs. Oviposition behavior was recorded for 30 minutes. The average walking speed of the females was 0.116 mm.s-1 and the total distance covered was 203.3 mm. The females remained on the egg masses for an average of 16.7 min, which corresponds to more than half of the total time. The average number of parasitized eggs was 15.1 per female in 30 minutes. Females with larger antennae had lower values for average speed and total distance covered. The results of the parameters evaluated show the standard oviposition behavior of T. remus females on S. frugiperda eggs and help us to better understand the species. Hymenoptera (Hymenoptera Scelionidae However taxonomic agents T tactics Lepidoptera (Lepidoptera Noctuidae laboratory 1 S 3 minutes 0116 0 116 0.11 mm.s1 mms1 mms mm.s mm s mm.s- 2033 203 203. 167 16 7 16. min time 151 15 15. species 011 11 0.1 s1 20 01 0. 2

Resumo Uma nova espécie do gênero Gnamptodon Haliday (Hymenoptera: Braconidae, Telengaiinae) do Brasil é descrita e ilustrada. Os novos dados aqui apresentados ampliam a distribuição geográfica e o número de espécies para esse gênero na região neotropical. Hymenoptera (Hymenoptera Braconidae Telengaiinae ilustrada neotropical

Abstract A new species of the genus Gnamptodon Haliday (Hymenoptera: Braconidae, Telengaiinae) from Brazil is described and illustrated. The new data now presented extend the geographical distribution and the number of species to this genus in neotropical region. Hymenoptera (Hymenoptera Braconidae Telengaiinae illustrated region

Abstract This study is focused on the parasitic wasp Plumarius brasiliensisPenteado-Dias & Scatolini, 2003 (Hymenoptera, Plumariidae). Data assembled from 12 consecutive months of systematic samplings at Parque Nacional Grande Sertão Veredas, in Minas Gerais, Brazil, indicate that the largest populations of P. brasiliensis occur there in the dry season, with few specimens collected in the rainy season, which may indicate that this group or its hosts have a seasonal pattern. This species is also reported for the first time in areas of Cerrado, in the states of Minas Gerais and Maranhão; in the core of Caatinga, in the state of Rio Grande do Norte; and in transition zone between Caatinga and Cerrado, in the state of Piauí, Brazil. The new distributional records in areas of Cerrado and Caatinga/Cerrado ecotone represent a significant increase in the geographic range of P. brasiliensis that can be present in about 35% of the Brazilian territory. Additionally, we provide digital images and diagnosis of this species and a map with the geographical distribution of the studied species based on the new records and literature data. brasiliensisPenteadoDias brasiliensisPenteado Dias Scatolini 200 Hymenoptera, Hymenoptera (Hymenoptera Plumariidae. Plumariidae . Plumariidae) 1 Veredas Brazil P season pattern Maranhão Norte Piauí CaatingaCerrado 35 territory Additionally data 20 3 2

ABSTRACT The names of two genera and eleven species belonging to Hymenoptera are unavailable. They were published by Francisco Dias da Rocha in 1908 for species from the state of Ceará (Brazil) and attributed to William H. Ashmead. The genus names proposed here as nomina nuda are: Mesopteromalus (Pteromalidae) and Rochai (Ichneumonidae). The species names proposed as nomina nuda are Trichoporus abdominalis, Tetrastichus balteativentris (Eulophidae), Eupelmus myrtaceae (Eupelmidae), Eurytoma cearae (Eurytomidae), Mesopteromalus abdominalis (Pteromalidae), Syntomaspis loranthaceae (Torymidae), Urogaster brasiliensis (Braconidae), Rochai achiaemorpha (Ichneumonidae), Leptacis myrtaceae, Polygnotus brasiliensis, and Synopeas rochai (Platygastridae). The probable relationship between Mesopteromalus abdominalis with Jaliscoa nudipennis Bouček, and between Eurytoma cearae and Rileya cearae Crawford are discussed. unavailable 190 Brazil (Brazil H Ashmead Pteromalidae (Pteromalidae Ichneumonidae. Ichneumonidae . (Ichneumonidae) Eulophidae, Eulophidae , (Eulophidae) Eupelmidae, Eupelmidae (Eupelmidae) Eurytomidae, Eurytomidae (Eurytomidae) Pteromalidae, Torymidae, Torymidae (Torymidae) Braconidae, Braconidae (Braconidae) Ichneumonidae, Platygastridae. Platygastridae (Platygastridae) Bouček discussed 19 (Ichneumonidae (Eulophidae (Eupelmidae (Eurytomidae (Torymidae (Braconidae (Platygastridae 1

Resumen Euschistus heros (Hemiptera: Pentatomidae) es la principal chinche plaga de la soja en Amambay, Paraguay; la intensidad de sus daños a las legumbres resulta en disminución de la producción y perjuicios económicos para el sojicultor. Los parasitoides que controlan naturalmente sus poblaciones son agentes importantes para incluir dentro del manejo integrado de plagas. En esta investigación se determinó la ocurrencia del parasitismo natural de huevos de E. heros por Telenomus sp. aff. podisi (Hymenoptera: Scelionidae) en soja. Se evaluaron los siguientes parámetros: número de huevos parasitados, índice de parasitismo y porcentaje de parasitoides emergidos. La investigación se realizó en seis municipios del departamento de Amambay, Paraguay donde se recolectaron aleatoriamente posturas de E. heros de 50 plantas de soja, que fueron transferidas al laboratorio y acondicionadas en cámara climatizada. Luego de la emergencia de los parasitoides se introdujeron en congelador para producir la muerte y en alcohol 70 % para su preservación. Para la identificación de los especímenes, las muestras de parasitoides fueron enviados al laboratorio del Instituto Biológico de Campinas-São Paulo, Brasil. Adicionalmente se elaboraron imágenes fotográficas de los parasitoides adultos recuperados para describir sus principales características morfológicas. Se identificó únicamente al parasitoide T. sp. aff. podisi. El número de huevos parasitados fue de 683, el índice de parasitismo 92,67 % y el porcentaje de parasitoides emergidos, 22,55 %. Este es el primer reporte de la ocurrencia natural de T. sp. aff. podisi en huevos de E. heros en cultivo de soja del Paraguay, un importante agente de control biológico de plagas.

Abstract Euschistus heros (Hemiptera: Pentatomidae) is the main pest of soybean in Amambay, Paraguay; the intense damage to the pods results in decreased production and economic losses for farmers. Parasitoids that naturally control their populations are important agents to include in integrated pest management. In this investigation, the occurrence of natural parasitism of E. heros eggs by Telenomus sp. aff. podisi (Hymenoptera: Scelionidae) in soybean was determined. The parameters evaluated were: The number of parasitized eggs, parasitism index, and percentage of emerged parasitoids. Photographic images of the parasitoids were also produced to describe their main morphological characteristics. The research was carried out in six districts of the department of Amambay, Paraguay. E. heros eggs were randomly collected from 50 soybean plants, transferred to the laboratory, and conditioned in a climate chamber. After the emergence of the parasitoids, they were placed in a freezer to produce death and in 70 % alcohol for preservation. For the identification of specimens, the parasitoid samples were sent to the laboratory of the Biological Institute of Campinas, Sao Paulo, Brazil. Additionally, photographic images of the recovered adult parasitoids were prepared to describe their main morphological characteristics. Only the parasitoid T. sp. aff. podisi was identified. The number of parasitized eggs was 683, the parasitism index was 92.67 %, and the percentage of emerged parasitoids, was 22.55 %. This is the first report of the natural occurrence of T. sp. aff. Podisi in E. heros eggs in Paraguayan soybean crops, an important biological pest control agent.