This study reports the occurrence of Nasonia vitripennis (Walker) (Hymenoptera: Pteromalidae) as parasitoid of Cyrtoneurina pararescita (Diptera: Muscidae) (Couri, 1995) in bovine feces obtained in Goiânia, Goiás state, Brazil. Bovine manure 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 gelatin until the emergence of dipterous or their parasitoids. The parasitism percentage was of 2.4%. This paper reports the first occurrence of N. vitripennis as parasitoid of C. pararescita worldwide.

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%.

This study reports the first occurrence of Muscidifurax raptorellus (Hymenoptera: Pteromalidae) in Brazil. Chicken manure samples, collected at two-week interval, were taken to the laboratory and the pupae were extracted by the method of flotation. Each pupa was placed in capsules of colorless gelatin until the emergence of dipterous or their parasitoids. In the study, ten pupae of Fannia pusio (Wiedemann, 1830) (Diptera: Fanniidae) were obtained, two of which yielded the parasitoid M. raptorellus . The percentage of parasitism was 5.0%.

This study determined the species of parasitoids of Diptera present in forest, rural, and urban areas in the municipality of Monte Alegre, MG, from March to November 2006. The percentages of parasitism in forest, rural, and urban areas were 14.3%, 11.0%, and 18.8%, respectively. The most frequent species (34.7%) was Triplasta atrocoxalis (Ashmead) (Hymenoptera: Figitidae).

This study verified the percentage of parasitism and hosts species of the parasitoid Triplasta atrocoxalis (Ashmead) (Hymenoptera: Figitidae: Eucoilinae) in cattle and buffalo dung, collected in the South of Goiás state, Brazil; from January 1998 to June 2004. The pupae were obtained by the flotation method. They were individually placed in gelatin capsules until the emergence of adult dipterous or their parasitoids. The percentage of parasitism in cattle and buffalo dung was 2.5% % and 0.1%, respectively.

The species of microhimenopterous in pupae of Diptera present in buffalo dung, collected in the municipality of Itumbiara, GO, from May 2003 to June 2004 were determined. The dipterous pupae were obtained by the flotation method. They were individually placed in gelatin capsules until the emergence of the dipterous and/or their parasitoids. The overall percentage of parasitism was 5.0%. The more frequent species were: Spalangia drosophilae Ashmead (Hymenoptera: Pteromalidae) with 21.5% and Paraganaspis egeria Díaz & Gallardo (Hymenoptera: Figitidae) with 16.3%.

RESUMO Este estudo relata a primeira ocorrência de Pachycrepoideus vindemmiae (Rondani) (Hymenoptera: Pteromalidae) como parasitóide de Ornidia obesa Fabricius (Diptera: Syrphidae) encontrado em fezes de galinhas em Itumbiara, Goiás, Brasil. Amostras de fezes foram coletadas em intervalos de duas semanas de sua exposição, 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 dos dípteros e/ou parasitóides. A porcentagem de parasitismo foi de 9%.

ABSTRACT This study reports, for the first time, the occurrence of Pachycrepoideus vindemmiae (Rondani) (Hymenoptera: Pteromalidae) as a parasitoid of Ornidia obesa Fabricius (Diptera: Syrphidae) found in chicken dung in Itumbiara, Goiás, Brazil. Manure samples, collected at 2-week 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 parasitism percentage was 9%.

This study reports, for the first time, the occurrence of Eurytoma sp. (Hymenoptera: Pteromalidae) as parasitoid of Fannia pusio (Wiedemann) (Diptera: Fanniidae) found in chicken dung in Itumbiara, Goiás, Brazil. Manure 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 dipterous or their parasitoids. The parasitism was 1.3%.

Relatou-se um novo hospedeiro para o parasitóide Pachycrepoideus vindemmiae (Rondani) (Hymenoptera: Pteromalidae) em fezes bovinas no Brasil. As pupas foram obtidas pelo método de flutuação. Elas foram colocadas, individualmente, em cápsulas de gelatina e mantidas até a emergência das moscas e/ou parasitóides. A porcentagem total de parasitismo foi de 12,5%. Este trabalho registra a primeira ocorrência de P. vindemmiae em pupas de Cyrtoneurina pararescita Couri (Diptera: Muscidae) no Brasil.

RESUMO Este trabalho relata a primeira ocorrência do parasitóide Spalangia nigra Latrielle 1805 (Hymenoptera: Pteromalidae) sobre pupas de Cyrtoneurina pararescita Couri 1995 (Diptera: Muscidae) em fezes bovinas no Brasil. O experimento foi realizado em Itumbiara, GO. As pupas foram obtidas pelo método de flutuação, individualizadas em cápsulas de gelatina e mantidas até a emergência das moscas e/ou parasitóides. A porcentagem de parasitismo foi de 10%.

ABSTRACT This paper reports the first occurrence of the parasitoid Spalangia nigra Latrielle 1805 (Hymenoptera: Pteromalidae) in pupae of Cyrtoneurina pararescita Couri 1995 (Diptera: Muscidae) in cattle dung in Brazil. The experiment was carried out in Itumbiara, state of GO, Brazil. The pupae were obtained by the flotation method. They were individually placed in gelatin capsules until the emergence of the adult flies or their parasitoids. The percentage of parasitism was 10%.

This study verified the host species of the parasitoid Hemencyrtus herbertii Ashmead (Hymenoptera: Encyrtidae), in Lavras, Minas Gerais, Brazil. The pupae were obtained by the flotation method. They were individually placed in gelatin capsules until the emergence of adult flies or their parasitoids. The overall occurence of parasitism was 6.5%. The occurrence of parasitism presented in the hosts Chrysomya megacephala (Diptera: Calliphoridae) and Sarcodexia lambens (Diptera: Sarcophagidae) was 1.3% and 29.4%, respectively.

RESUMO Este estudo teve como objetivo determinar as espécies de parasitóides presentes nos matadouros, em Itumbiara, GO, e Tupaciguara, MG, Brasil, no período de março a dezembro de 2005. As pupas dos dípteros foram separadas do substrato pelo método de flotação e individualizadas em cápsulas de gelatina até a emergência dos dípteros e/ou dos seus parasitóides. As espécies mais freqüentes foram: Brachymeria podagrica (Fabricius) (Hymenoptera: Chalcididae), com 80% em Itumbiara e Pachycrepoideus vindemmiae (Rondani) (Hymenoptera: Pteromalidae), com 82,4% em Tupaciguara.

ABSTRACT This study had the objective of determining the species of parasitoids present in slaughterhouses, in Itumbiara, GO and Tupaciguara, MG, Brazil, from January to December 2005. The dipterous pupae were obtained by the flotation method. They were individually placed in gelatin capsules until the emergence of the flies and/or their parasitoids. The most frequent species were: Brachymeria podagrica (Fabricius) (Hymenoptera: Chalcididae), with 80% in Itumbiara, and Pachycrepoideus vindemmiae (Rondani) (Hymenoptera: Pteromalidae), with 82.4% in Tupaciguara.

The species of parasitoids associated with Musca domestica L. (Diptera: Muscidae) collected in human feces, cattle liver, chicken viscera, cattle dung, chicken manure and food leftovers in Itumbiara, State of Goiás, Brazil, from July 1999 to July 2003, were studied. The pupae were obtained by the flotation method. They were individually placed in gelatin capsules until the emergence of the adult flies or their parasitoids. The overall prevalence of parasitism was 0.7%. The most frequent species was Pachycrepoideus vindemiae (Rondani) (Hymenoptera: Pteromalidae), accounting for 35.4%.