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1 July 2007 The Sarcophagidae (Diptera) of the Coastline of Buenos Aires City, Argentina
Juan C. Mariluis, Juan A. Schnack, Pablo R. Mulieri, Juan P. Torretta
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The flesh fly community was surveyed on the shoreline of Río de la Plata at an ecological reserve whose western border directly abuts downtown eastern Buenos Aires. Samples were taken at monthly intervals from September 2004 to August 2005. To attract the flies, dog faeces and rotten cow liver were used as bait. Overall number, species composition and sex ratio were referred to each chosen bait. Of the thirteen species captured during the sampling period, Helicobia aurescens (Townsend), Oxysarcodexia culmiforceps Dodge, Oxysarcodexia marina (Hall), Oxysarcodexia thornax (Walker), Sarcophaga (Lipoptilocnema) koehleri (Blanchard), S. (L.) lanei (Townsend) and Tricharaea (Sarcophagula) occidua (Fabricius) were recorded for the first time in Buenos Aires city. Regardless of species composition, higher number of flies were obtained on faeces. Tricharaea (S.) occidua, was highly dominant (78,35%) followed in abundance by Oxysarcodexia varia (7,82%), both species showing a strong preference for dog faeces. Microcerella muehni and Oxysarcodexia paulistanensis did not show any preference on either bait. Sex ratio was male biased for O. varia, while females were dominant for O. paulistanensis and T. (S.) occidua, and no differences were found for M. muehni. Bait's preference and sex ratio could not be estimated for the remaining species due to their low abundance.

Juan C. Mariluis, Juan A. Schnack, Pablo R. Mulieri, and Juan P. Torretta "The Sarcophagidae (Diptera) of the Coastline of Buenos Aires City, Argentina," Journal of the Kansas Entomological Society 80(3), 243-251, (1 July 2007).[243:TSDOTC]2.0.CO;2
Accepted: 1 June 2006; Published: 1 July 2007
abundancia relativa
área costera
bait preference
Buenos Aires
preferencia de cebos
proporción de sexos
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