251 Boln. S.E.A., n1 35 (2004) : 251−255 entomologia aplicada (IX) Constance coefficient of blowflies (Diptera: Calli- phoridae) in Nova Iguaçu, Rio de Janeiro, Brazil Roney RODRIGUES-GUIMARÃES 1,3 , Gonzalo Efrain MOYA BORJA 1 , Edwin Alberto PILE 2 , Ronald RODRIGUES GUIMARÃES 3 & Fernanda REIS SAMPAIO 3 1 Curso de Pós-Graduação em Biologia Animal - Doutorado – UFRuralRJ 2 Depto de Biologia/IOC/FIOCRUZ 3 Universidade Iguaçu – UNIG Endereço para Correspondência: Rodrigues-Guimarães, Roney: Rua Lúcio Tavares, 478 – Casa 05 – Centro – Nilópolis, Rio de Janeiro – Brasil – CEP 26530-060. E-mail – roneyrg@ig.com.br e ro- neyrg@ibest.com.br / UFRuralRJ – Decanato de Pesquisa e Pós-Graduação BR-465, Km 7- Sero- pédica/ Rio de Janeiro- CEP 23890-000– Instituto de Biologia – Curso de Pós-graduação em Biolo- gia Animal / E-mail: gemoya@ufrrj.br / UNIG – Av. Abílio Augusto Távora, 2134 – Centro – Nova Iguaçu – Rio de Janeiro – CEP 23650-000; E-mail: ronaldrg@ig.com.br / FIOCRUZ – Av Brasil, 4365, CEP 21045-900 Manguinhos, Rio de Janeiro. E-mail: edwin_pile@uol.com.br Abstracts: It was carried out a study to investigate the presence of Calliphoridean flies (Diptera: Calliphoridae) in a reforestation area in Nova Iguaçu, Rio de Janeiro, Brazil. The research was carried out from April/2000 to March/2001 and the collects were made with traps built according to Ferreira (1978) installed in an area near of a pond and baited with mice carcasses, bovine liver and banana. During the collects, 12145 blowflies were captured and the evaluations showed the presence of Chrysomya megacephala, Chrysomya albiceps, Chrysomya putoria, Cochliomyia macellaria, Hemilucilia segmentaria, Hemilucilia semidiaphana inside of the Chrysomyinae subfamily; and Phaenicia eximia and Phaenicia. cuprina in the Calliphorinae subfamily, establishing some difference when related the species, baits and the seasons. The results demonstrated also that C. megacephala, C. albiceps, C. putoria and P. cuprina could be considered constant inside the area and C. macellaria, H. semidiaphana and H. segmentaria as accessory species. Key words: Calliphoridae, Flies, Blowflies, Diptera Resumo: Foi realizada uma pesquisa para investigar a presença de dípteros califorídeos em uma área de reflorestamento em Nova Iguaçu, Rio de Janeiro, Brasil. A pesquisa foi realizada de abril de 2000 a março de 2001 e as coletas foram feitas com armadilhas construídas de acordo as indicações de Ferreira (1978). As armadilhas foram instaladas em área próxima de uma lagoa e iscadas com carcaças de ca- mundongos, fígado bovino e banana. Durante as coletas, 12145 califorídeos foram capturadas e as avaliações demonstraram a presença de Chrysomya megacephala, Chrysomya albiceps, Chrysomya putoria, Cochliomyia macellaria, Hemilucilia segmentaria, Hemilucilia. semi- diaphana dentro da subfamília Chrysomyinae e Phaenicia eximia e Phaenicia. cuprina na subfamília Calliphorinae estabelecendo algumas diferenças quando relacionadas às espécies, iscas e as estações do ano. Os resultados demonstraram também que C. megacephala, C. albiceps, C. putoria e P. cuprina podem ser consideradas como espécies constantes dentro da área avaliada e C. macellaria, H. semidiap- hana e H. segmentaria como espécies acessórias. Palavras chaves: Calliphoridae, Moscas, Varejeiras, Diptera. Introduction The blowflies (Diptera: Calliphoridae) measure from 4 to 6mm of length, it has a round and oval abdomen and darkened body with metallic reflex from greenish to cupric. The larvae have a sharp anterior edge with strong oral hooks; and its pos- terior edge is truncate with the presence of breathing holes. According to Stedman (1996) the close relation between the man and these flies shows problems related to the public health, reason by which its occurrence has been studied in several coun- tries in the world, demonstrating its presence so much in rural areas as in urban areas (Madeira et al., 1989). The major problem is related with the microorganism disseminations since its spreading is high increasing the risk (Valgode et al., 1998; Greenberg, 1973; Furlanetto et al., 1984 and Norberg et al., 1999). But, according to Veronesi & Focaccia (1996), the larvae can also cause dermatitis on the surface or in the cavities of the body due to the possibilities of the use of several substrates as food, including healthy animals. Thus, we have Cochliomyia hominivorax (Coquerel, 1858) attracted by wounds and superficial epithelial, where the adults puts its eggs (Rey, 1991) and Chrysomya and Phaenicia genus attracted by fish, liver, lungs and meat of bovine, chicken viscera, fresh shrimp, fruits, human and chicken feces, decomposed vegeta- bles and animals carcasses, including those of humans (Zumpt & Patterson, 1952; Linhares, 1981; Cook, 1991; Linhares & Avancini, 1989; Mendes & Linhares, 1993; Paraluppi & Linhares, 1995; d’Almeida & Almeida, 1998 and Rodrigues- Guimarães et al., 2000 and 2001). Observing the importance and its presence in a reforestation area near to the University, it was decided by the verification of the seasonality of the several species in the area.