During 2004, four experiments were carried out, one each season, in order to determine the species composition and seasonal dynamics of Calliphoridae in a rural area of Córdoba (Argentina). Two pigs (Sus scrofa L.), weighing approximately 8 Kg each, were used in each experiment. They were killed with a blow to the head and immediately placed in a variant of the Schoenly et al. (1991) trap. One pig was exposed in the shade and the other one under direct sunlight. The insect fauna was collected daily during the four first weeks and every two or three days thereafter. A total of 16.609 adults of Calliphoridae were collected, and later on identified as one of the following seven species: Chrysomya albiceps (Wiedemann), Chrysomya megacephala (Fabricius), Phaenicia sericata (Meigen), Phaenicia eximia (Wiedemann), Cochliomyia macellaria (Fabricius), Sarconesia chlorogaster (Wiedemann) and Calliphora vicina Robineau-Desvoidy. C. albiceps was the dominant species in summer, autumn and spring, being replaced in winter by C. vicina, S. chlorogaster and P. sericata. The analysis of the seasonal distribution of the species revealed that the greater incidences are in the months of summer, autumn and spring.402163171BATTÁN HORENSTEIN, M., ARNALDOS, M.I., ROSSO, B., GARCÍA, M.D., Estudio preliminar de la comunidad sarcosaprófaga en Córdoba (Argentina): Aplicación a la entomología forense (2005) Anales de Biología, 27, pp. 191-201BAUMGARTNER, D.L., GREENBERG, B., Distribution of medical ecology of the blowflies (Diptera: Calliphoridae) of Peru (1985) Annals of Entomological Society of America, 78, pp. 565-587CARVALHO, L.M.L., LINHARES, A.X., Seasonality of insect seccession and pig carcass decomposition in a natural forest area in southeastern Brazil (2001) J Foren Sci, 46 (3), pp. 604-608CARVALHO, L.M.L., THYSSEN, P.J., LINDARES, A.X., PALHARES, F.A.B., A checklist of arthropods associated with pig carrion and human corpses in southeastern Brazil (2000) Mem Inst Oswaldo Cruz, 95 (1), pp. 135-138CATTS, E.P., GOFF, M.L., Forensic Entomology in Criminal Investigation (1992) Annu Rev Entomol, 37, pp. 253-272CENTENO, N., MALDONADO, M., OLIVA, A., Seasonal patterns of arthropods ocurring on sheltered and unsheltered pig carcasses in Buenos Aires Province (Argentina) (2002) Forensic Sci Internat, 126, pp. 63-70FERREIRA, M.J.M., Sinantropía de dípteros muscóideos de Curitiba, Paraná. 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Med Vet Entomol 15: 208-211GUIMARÃES, J.H., PRADO, A.P., LINHARES, A.X., Three newly introduced blowfly species in southern Brazil (Diptera: Calliphoridae) (1978) Rev Bras Ent, 22, pp. 53-60GUIMARÃES, J.H.G., PAPAVERO, N., PRADO, A.P., As miíases na região Neotropical: Identificação, biologia, bibliografia (1983) Rev Bras Zool, 1, pp. 239-416KUUSELA, S., HANSKI, I., The structure of carrion fly comminities: The size and the type of carrion (1982) Holartica Ecology, 5, pp. 337-348LINHARES, A.X., Synanthropy of Calliphoridae and Sarcophagidae (Diptera) in the city of Campinas, Sao Paulo, Brazil (1981) Rev Bras Ent, 25 (3), pp. 189-215MARILUIS, J.C., SCHNACK, J.A., Ecología de una taxocenosis de Calliphoridae del área platense (Provincia de Buenos Aires) (Insecta, Diptera) (1986) Ecosur, 12-13 (23-24), pp. 81-91MARILUIS, J.C., SCHNACK, J.A., Ecology of the blow flies of an eusynanthropic habitat near Buenos Aires (Diptera, Calliphoridae) (1989) Eos, 165, pp. 93-101MARILUIS, J.C., SCHNACK, J.A., CERVERERIZZO, I., QUINTANA, C., (1826) Cochliomyia hominivorax (Coquerel, 1858) and Phaenicia sericata, 32, pp. 7-24. , Meigen, parasiting domestic animals in Buenos Aires and vicinities Diptera, Calliphoridae, Mem Inst Oswaldo Cruz 89: 139MARILUIS JC, SCHNACK JA (1996) Elenco específico y aspectos ecológicos de Calliphoridae (Insecta, Diptera) de San Carlos de Bariloche, Argentina. 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