The diversity of arthropods present in the crops of yellow and white Chrysanthemum morifolium Ramat. in greenhouse is analyzed, based on the species richness, abundance and trophic roles. The study was carried out in a greenhouse located in El Carmen (Jujuy). Field tasks consisted of three strokes per plant to 30 plants taken randomly, with two repetitions, and a specific sampling of extraction of five flowers in three opening states (floral bud, flower-semi-open and open flower) for each color throughout the crop cycle. Samples were observed under a stereoscopic microscope for the extraction of the associated arthropods, which were identified and stored in flasks with 70% ethanol as well as microscopy slides. A total of 9,027 arthropods were collected, distributed in the classes Insecta (eight orders and 25 families) and Arachnida (three orders and nine families). The most diverse functional group was the phytophagous. This included the dominant species Frankliniella occidentalis (Thysanoptera) and Tetranychus urticae (Prostigmata). The entomophagous group was represented by Anthocoridae (Hemiptera), Chrysopidae (Neuroptera) and 11 families of Hymenoptera parasitica, Phytoseiidae (Mesostigmata) and seven families of Araneae. The less abundant groups were the detritivores (Psocoptera), fungivores (Latridiidae), xylophagous (Bostrichidae), and the varied diet (Formicidae).

Se analizó la diversidad de artrópodos presentes en Chrysanthemum morifolium Ramat. de color amarillo y blanco cultivado en invernadero, en función de la riqueza de especies, abundancia y roles tróficos. El estudio se realizó en un invernadero ubicado en El Carmen (Jujuy). Los muestreos consistieron en tres golpes por planta a 30 plantas tomadas al azar, con dos repeticiones, y un muestreo específico de extracción de cinco flores en tres estados de apertura (botón floral, semiabierta y abierta) para cada color a lo largo del ciclo del cultivo. Las muestras se observaron bajo microscopio estereoscópico para la extracción de los artrópodos asociados, los que fueron identificados y conservados en frascos con etanol 70% o bien como preparaciones microscópicas. Se recolectaron 9.027 artrópodos, distribuidos en las clases Insecta (ocho órdenes y 25 familias) y Arachnida (tres órdenes y nueve familias). El grupo funcional más diverso fue el de fitófagos, siendo las especies dominantes Frankliniella occidentalis (Thysanoptera) y Tetranychus urticae (Prostigamata). Entre los entomófagos se registraron representantes de las familias Anthocoridae (Hemiptera), Chrysopidae (Neuroptera), Phytoseiidae (Mesostigmata), 11 familias de Hymenoptera parasítica, y siete familias de Araneae. Los grupos menos abundantes fueron los detritívoros (Psocoptera), fungívoros (Latridiidae), xilófagos (Bostrichidae) y de alimentación variada (Formicidae).

RESUMO Os parâmetros de tabela de vida foram estudados para o predador Orius insidiosus em três cultivares de algodoeiro (Antares, CNPA7H e Acala 90 respectivamente, glabra, de média pilosidade e pilosa) alimentando-se do pulgão-do-algodoeiro Aphis gossypii. O estudo mostrou que o tipo de cultivar pode influenciar nos parâmetros da tabela de vida do predador. A taxa intrínseca (rm) foi de 0,088 (Antares), 0,081 (CNPA7H) e 0,079 (Acala 90). Diferenças também foram observadas para o tempo de desenvolvimento, sobrevivência, fecundidade e longevidade entre os cultivares. A taxa líquida de reprodução (Ro) foi de 18,53 no cultivar Antares, mas com menor diferença nos cultivares CNPA7H (12,26) e Acala 90 (12,95). O tempo de desenvolvimento foi de 33,9; 30,62 e 32,13 dias para Antares, CNPA7H e Acala 90, respectivamente. A sobrevivência foi semelhante até o 12o dia em todos cultivares. Fêmeas de O. insidiosus sobreviveram até o 60o dia no cultivar Antares, sendo que começaram a ovipositar normalmente depois de dezesseis dias no cultivar Antares e dezenove dias em CNPA7H e Acala 90.

ABSTRACT The life table parameters were studied for Orius insidiosus on the three cotton plant cultivars Antares, CNPA7H and Acala 90 (respectively, without tricome, medium tricome density and high tricome density). This study showed that the type of cultivar can strongly influence the life-table parameters. The intrinsic rate (rm) was 0.088 (on Antares), 0.081 (CNPA7H) and 0.079 (on Acala 90), which was expected as these differences were also observed for development time, survival, fecundity and longevity on the cultivars. The reproductive rate (Ro) was 18.53 on the Antares cultivar, but showed less difference for CNPA7H (12.26) and Acala 90 (12.95). The development time was 33.9, 30.62 and 32.13 days for Antares, CNPA7H and Acala 90, respectively. The age-specific survival was similar until the 12th day. Maximum survival was 60 days on the Antares cultivar. Females usually began to oviposit after 16 days on the Antares cultivar and the after 19 days day on CNPA7H and Acala 90.

ABSTRACT The objective of the work was to verify the occurrence of predators in the following soybean cultivars: Conquest, IAC 18, Jataí, IAC 8-2 and Goiânia. The experiment was carried out at the Farm Santa Fé, district of Araçatuba, SP, Brazil, with statistical delineation of randomized blocks design with 5 repetitions. The predators collected with fishnet (10 per part) and beating cloth (5 per part) were: Anthocoridae, Callida pallidipennis, Callida scutelaris, Callida sp., Chrysopidae, Chrysoperla externa, Ceraeochrysa cubana, Ceraeochrysa sp., Cycloneda sanguinea, Dermaptera, Exochomus bimaculosus, Formicidae, Geocoris sp., Lebia concina, Leptotrachelus sp., Nabis sp., Orius sp., Ploiariidae, Podisus sp., Reduvidae, Scymnus sp., Staphilinidae and spiders. No statistically significant differences were found between the treatments. cultivars Conquest 18 Jataí 82 8 2 8- Goiânia Fé Araçatuba SP Brazil repetitions 10 (1 part ( Anthocoridae pallidipennis scutelaris sp sp. Chrysopidae externa cubana sanguinea Dermaptera bimaculosus Formicidae concina Ploiariidae Reduvidae spiders treatments 1

RESUMO O objetivo do trabalho foi verificar a ocorrência de predadores nas seguintes cultivares de soja: Conquista, IAC 18, Jataí, IAC 8-2 e Goiânia. O experimento foi instalado na Fazenda Santa Fé, Município de Araçatuba, SP, com delineamento estatístico de blocos casualizados com 5 repetições. Os predadores coletados com rede de varredura (10/parcela) e pano de batidas (5/parcela) foram: Anthocoridae, Callida pallidipennis, Callida scutelaris, Callida sp., Chrysopidae, Chrysoperla externa, Ceraeochrysa cubana, Ceraeochrysa sp., Cycloneda sanguinea, Dermaptera, Exochomus bimaculosus, Formicidae, Geocoris sp., Lebia concina, Leptotrachelus sp., Nabis sp., Orius sp., Ploiariidae, Podisus sp., Reduvidae, Scymnus sp., Staphilinidae e aranhas. Não houve diferenças estatísticas entre os tratamentos. soja Conquista 18 Jataí 82 8 2 8- Goiânia Fé Araçatuba SP repetições 10/parcela 10parcela parcela 10 (10/parcela 5/parcela 5parcela (5/parcela foram Anthocoridae pallidipennis scutelaris sp sp. Chrysopidae externa cubana sanguinea Dermaptera bimaculosus Formicidae concina Ploiariidae Reduvidae aranhas tratamentos 1

Se reconocieron taxonómicamente los insectos y los ácaros del guayabo, Psidium guajava L., en plantaciones comerciales de los municipios Mara, Páez, La Cañada de Urdaneta, Jesús Enrique Lossada, Miranda y Sucre del estado Zulia, Venezuela, de marzo de 2000 a julio de 2001. Los especímenes se capturaron con redes entomológicas, succionadores y frascos con acetato de etilo, luego se identificaron y preservaron en el Museo de Artrópodos de La Universidad del Zulia (MALUZ). Hojas, flores, frutos y ramas con los insectos inmaduros y ácaros fueron traídos al laboratorio para cría y observación. Se identificaron 47 especies de insectos y 8 de ácaros, de los cuales 29 son nuevos reportes para la zona de estudio y 25 para Venezuela. Se encontraron 44 especies fitófagas, 10 depredadoras y 1 parasitoide. Las especies fitófagas más comunes fueron: Anastrepha striata Schiner, A. obliqua Macquart, A. fraterculus (Wiedemann) (Diptera: Tephritidae); Capulinia sp. cercana a jaboticabae von Ihering (Homoptera: Eriococcidae); Veneza zonata (Pallas), Fabrictilis gonagra (Fabricius) (Hemiptera: Coreidae); Liothrips similis Bagnall (Thysanoptera: Phlaeothripidae); Selenothrips rubrocinctus (Giard) (Thysanoptera: Thripidae) y Brevipalpus phoenicis (Geijskes) (Prostigmata: Tenuipalpidae). Los depredadores más comunes fueron 8 especies de la familia Coccinellidae, una chinche de la familia Anthocoridae y Chrysoperla sp. (Neuroptera: Chrysopidae).

A taxonomic survey of the insects and mites of Guava, Psidium guajava L., was conducted in commercial orchards of Mara, Páez, La Cañada de Urdaneta, Jesús Enrique Lossada, Miranda and Sucre counties of Zulia state, Venezuela, from March 2000 to July 2001. Phytophagous and entomophagous species were collected with entomological nets, aspirators and ethyl acetate killing jars, as well as they were identified and preserved in the collection of the Arthropod Museum of the University of Zulia (MALUZ). Leaves, fruits, flowers and twigs with the insects or mites were brought to the lab for observation and rearing. A total of 47 insect species and 8 mite species were found on this crop, of which 29 and 25 are new reports for the region and for Venezuela respectively. Forty-four species were phytophagous, 10 were predators and 1 was parasitoid. The most common phytophagous species were: Anastrepha striata Schiner, A. obliqua Macquart, A. fraterculus (Wiedemann) (Diptera: Tephritidae); Capulinia sp. cercana a jaboticabae von Ihering (Homoptera: Eriococcidae); Veneza zonata (Pallas), Fabrictilis gonagra (Fabricius) (Hemiptera: Coreidae); Liothrips similis Bagnall (Thysanoptera: Phlaeothripidae); Selenothrips rubrocinctus (Giard) (Thysanoptera: Thripidae) y Brevipalpus phoenicis (Geijskes) (Prostigmata: Tenuipalpidae). The most common predators were 8 species of Coccinellidae, 1 species of Anthocoridae and Chrysoperla sp. (Neuroptera: Chrysopidae).

O objetivo deste trabalho foi verificar a diversidade de pulgões, seus predadores e parasitóides, e a influência de fatores climáticos nas suas populações. Foram realizadas coletas semanais no período de abril/1995 a março/1996, no campo de alfafa da Universidade Federal de Lavras (UFLA), em Lavras, MG. As espécies de pulgões coletadas foram Therioaphis trifolii (Monel) f. maculata, Acyrthosiphon pisum (Harris), A. kondoi Shinji e Aphis craccivora Kock, presentes na cultura durante todo o período de estudo, com picos populacionais em novembro/1995, julho/1995, dezembro/1995 e abril/1996, respectivamente. Foram amostrados insetos predadores das famílias Coccinellidae, Syrphidae, Anthocoridae, Geocoridae e Chrysopidae, tendo as duas últimas ocorrência esporádica. Espécies da família Coccinellidae ocorreram durante todo o período amostral, apresentando o pico populacional no final de dezembro/1995, com precipitação de 20 mm e temperatura de 22,6ºC. A família Syrphidae alcançou maiores números em abril, à precipitação de 53 mm e temperatura de 21ºC. A família Anthocoridae não se manteve por todo o período amostral, porém um pico populacional ocorreu no final de dezembro nas mesmas condições que aquele apresentado pela família Coccinellidae. Os parasitóides da família Aphididae alcançaram pico em junho/1995, à temperatura de 16ºC.

This work was carried out with the objective of showing the diversity of aphids and their predators and parasitoids, as well as the influence of the climatic factors on these insects in alfalfa crop. The survey was done weekly from April/95 to March/96. Four species of the aphids were found: Therioaphis trifolii (Monel) f. maculata, Acyrthosiphon pisum (Harris), A. kondoi Shinji and Aphis craccivora Kock, which were present in the crop during all the survey period, with the population peaks in November/95, July/95, December and April/96, respectively. Predator insects belong to families: Coccinellidae, Syrphidae, Anthocoridae, Geocoridae and Chrysopidae were found. Species of Coccinellidae occurred during all the survey period, with the population peak in the end of December with 20 mm of rainfall and 22.6ºC. The Syrphidae species reaching higher numbers in April/95, with 53 mm of rainfall and 21ºC. Orius sp. was the only specie of Anthocoridae, with a peak in the end of December/95, under the same conditions as to Coccinellidae. Two species of the parasitoids were found: Aphidius colemani Viereck and A. ervi Haliday with the populacional peak in June/95 at 16ºC.