Resumo
RESUMO Este estudo relata a primeira ocorrência de Trybliographa sp. (Hymenoptera: Figitidae: Eucoilinae) como parasitóide de Oxysarcodexia thornax (Walker, 1849) (Diptera: Sarcophagidae) encontrado em fezes humanas em Itumbiara, GO, Brasil. Amostras de fezes humanas foram coletadas em intervalos de duas semanas de sua exposição no campo e levadas para o laboratório para extração das pupas pelo método de flutuação. As pupas foram individualizadas em cápsulas de gelatina e mantidas até a emergência das moscas e/ou parasitóides. A porcentagem de parasitismo foi de 10%.
ABSTRACT This study reports, for the first time, the occurrence of Trybliographa sp. (Hymenoptera: Figitidae: Eucoilinae) parasitoid of Oxysarcodexia thornax (Walker, 1849) (Diptera: Sarcophagidae) found in human feces in Itumbiara, GO, Brazil. Human feces samples, collected at two-weeks intervals, were taken to the laboratory and the pupae were extracted by water flotation. Each pupa was placed in capsules of colorless gelatin until the emergence of flies or their parasitoids. The percentage of parasitism was 10%.
Resumo
RESUMO Este estudo relata a ocorrência de superparasitismo em pupas de Cyrtoneurina pararescita Couri (Diptera: Muscidae) pelo parasitóide Spalangia nigroaenea Curtis (Hymenoptera: Pteromalidae) em fezes bovinas em Itumbiara, Goiás, Brasil. Amostras de fezes foram coletadas em intervalos de duas semanas de sua exposição no campo, levadas para o laboratório para extração das pupas pelo método de flutuação. As pupas foram individualizadas em cápsulas de gelatina e mantidas até a emergência das moscas e/ou parasitóides. Foram coletadas duas pupas de C. pararescita, das quais de cada uma emergiram 2 parasitóides pertencentes a espécie S. nigroaenea. Este é o primeiro relato de superparasitismo de S. nigroaenea em pupas de C. pararescita em fezes bovinas no Brasil.
ABSTRACT This study reports the occurrence of superparasitism in pupae of Cyrtoneurina pararescita Couri (Diptera: Muscidae) by the parasitoid Spalangia nigroaenea Curtis (Hymenoptera: Pteromalidae) in bovine dung in Itumbiara, Goias, Brazil. Manure samples, collected at two intervals, were taken to the laboratory and the pupae were extracted by water flotation. The pupae were placed in gelatin capsules until the emergence of flies or their parasitoids. Parasitoids of the species S. nigroaenea emerged from two of the pupae. This is the first report of superparasitism by S. nigroaenea in pupae of C. pararescita in bovine dung in Brazil.
Resumo
The frequency of Pteromalidae species found in Diptera pupae that were collected from cattle dung in Panamá, State of Goiás, Brazil, between May and December 2003 was studied. The pupae were obtained by the flotation method and were individually placed in gelatin capsules until the emergence of the adult flies or their parasitoids. The overall percentage of parasitism was 14.7%. The percentage of parasitism presented by the parasitoids Pachycrepoideus vindemmiae (Rondani), Spalangia cameroni Perkins, Spalangia drosophilae Ashmead , Spalangia endius Walker, Spalangia nigra Latrielle and Spalangia nigroaenea Curtis were 1.7%, 1.4%, 2.4%, 0.7%, 2.4% and 6.1%, respectively.(AU)