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OMORGUS (OMORGUS) SUBEROSUS (FABRICIUS) (COLEOPTERA: TROGIDAE) IN POULTRY MANURE IN SÃO JOÃO DA BOA VISTA, SP, BRAZIL

ABSTRACT

The family Trogidae (Coleoptera) is cosmopolitan and its species are mainly necrophagous. Studies on Omorgus (Omorgus) suberosus (Fabricius, 1775) on excrements in poultry houses are needed due to the scarcity of published information on the species in this kind of environment. A survey for this trogid was carried out in a poultry house in São João da Boa Vista, SP, Brazil, from January 2001 to December 2002 using soil and water flotation traps and Berlese-Tullgren funnel. A total of 2,322 specimens of O. suberosus were collected, being 99.17% by soil trap, 0.51% by Berlese-Tullgren funnel and only 0.30% (7 specimens) by water flotation trap. A significant increase in the capture (P < 0.05) of O. suberosus was registered in the summer of 2001/2002, and the soil trap proved to be the most appropriate method (P < 0.05) for capture of this species.

KEY WORDS
Poultry house; Insecta; Omorgus suberosus ; Trogidae

Instituto Biológico Av. Conselheiro Rodrigues Alves, 1252 - Vila Mariana - São Paulo - SP, 04014-002 - São Paulo - SP - Brazil
E-mail: arquivos@biologico.sp.gov.br