Parasitoides de Ornidia obesa Fabricius (Diptera: Syrphidae) coletados em fezes de galinha no Brasil

this study reports the occurrence of pachycrepoideus vindemmiae (rondani) (hymenoptera: pteromalidae) and spalangia cameroni perkins (hymenoptera: pteromalidae) as parasitoids of ornidia obesa fabricius (diptera: syrphidae) in poultry farms in morrinhos, goiás, state brazil. samples of chicken feces were collected at two weeks intervals and taken to the laboratory. the pupae were extracted by water flotation. each pupa was placed in capsules of gelatin until the emergence of dipterous or their parasitoids. the parasitism percentage of p. vindemmiae and s. cameroni was 5.1%.