Cláudio Gonçalves Silva

Dípteros muscóides de importância médica e veterinária e seus parasitóides em Goiás

The objective of this work was to identify flies of medical and veterinary importance and their natural enemies, located around the city of Itumbiara, GO, Brazil. Five thousand eight hundred and twenty-five muscoid dipterous insects and parasitoids were collected from a Brazilian savanna (cerrado) area of Itumbiara. Substrates for obtaining flies were liver. The most frequent fly and parasitoid species found were: Fannia pusio (29.2%) and Atherigona orientalis (26.8%) (flies), Nasonia vitripennis (56.0%) and Brachymeria sp. (26.6%) (parasitoids). Musca domestica was the dipterous species of greatest sanitary importance collected. This is the first report of the species Brachymeria sp. and Hememcyrtus sp. in the State of Goias. Data contribute to the knowledge of dipterous and parasitoids fauna in the state of Goias.

Himenópteros parasitóides de larvas de Anastrepha spp. em frutos de carambola (Averrhoa carambola L.) na região de Divinópolis, Minas Gerais, Brasil

Este trabalho foi conduzido com o objetivo de conhecer os parasitoides de moscas-da-fruta na regiao de Divinopolis-MG. As pupas foram obtidas pelo metodo de flutuacao, sendo individualizadas em capsulas de gelatina ate a emergencia das moscas adultas ou de seus parasitoides. A prevalencia total de parasitismo foi de 14,8%. Trichopria anastrepha foi a especie mais comum, com 44,5%.

Aspectos biológicos de Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) alimentada com Bemisia tabaci (Gennadius, 1889) biótipo B (Hemiptera: Aleyrodidae) criada em três hospedeiros

The aim was to study some biological aspects of adults of Chrysoperla externa (Hagen), from larvae fed on nymphs of third and fourth stages of Bemisia tabaci (Gennadius) biotype B, and reared on leaves of cucumber (Cucumis sativus), kale (Brassica oleracea) and wild poinsettia (Euphorbia heterophylla). Leaf discs from the hosts containing third and fourth stage nymphs of whitefly, were placed in Petri dishes containing 1% agar. One recently hatched larvae of C. externa was placed in each dish, until adult emergence. The weight after emergence,eoviposition, oviposition, effective oviposition and postoviposition periods, the total number of eggs per female and longevity were evaluated. The embryonic period and the survival rate of the eggs were also recorded by collecting weekly samples of 10% of the daily egg production, throughout the reproductive period. The weights of males and females did not differ in relation to the hosts, the average being 4.7 mg. In general, adults of C. externa, coming from larvae fed on B. tabaci biotype B nymphs reared on leaves of the host wild poinsettia, had their biological characters affected, in comparison with those on leaves of cucumber and kale. The oviposition period averaged 49.5 days for cucumber and kale, and 31.6 days for wild poinsettia. Egg laying capacity was reduced by 50% on wild poinsettia, its being 293.8 eggs. In cucumber and kale, the average was 591.3 eggs. Nymphs of B. tabaci biotype B reared on wild poinsettia caused increase of the embrionic period and a reduction of the survival rate of the eggs, its being 62.8% and 57.7% lower than that presented by the ones reared on cucumber and kale, respectively.

Dípteros sinantrópicos associados a restos alimentares e seus parasitóides

This study was carried out in order to determine the species of parasitoids associated with Diptera collected in food remains. Pupae of Diptera were collected twice a month from the food remains kept for more than fifteen days in garbage containers. Pupae were obtained by flotation and they were placed individually in gelatin capsules until the emergence of the adult flies or parasitoids. The most frequent species was Megaselia sp. with 47.1%. The overall percentage of parasitism was 2.4% and in Musca domestica L. the parasitism rate reached 20.0%. Pachycrepoideus vindemiae (Rondani), and Muscidifurax raptor Girault & Sanders presented parasitism rates of 2.1% and 0.2%, respectively.

Muscoid dipterous of medical and veterinary importance and their parasitoids in Goias State, Brazil

The objective of this work was to identify flies of medical and veterinary importance and their natural enemies, located around the city of Itumbiara, GO, Brazil. Five thousand eight hundred and twenty-five muscoid dipterous insects and parasitoids were collected from a Brazilian savanna (cerrado) area of Itumbiara. Substrates for obtaining flies were liver. The most frequent fly and parasitoid species found were: Fannia pusio (29.2%) and Atherigona orientalis (26.8%) (flies), Nasonia vitripennis (56.0%) and Brachymeria sp. (26.6%) (parasitoids). Musca domestica was the dipterous species of greatest sanitary importance collected. This is the first report of the species Brachymeria sp. and Hememcyrtus sp. in the State of Goias. Data contribute to the knowledge of dipterous and parasitoids fauna in the state of Goias.

Parasitóides de Peckia chrysostoma (Wiedemann, 1830) (Diptera: Sarcophagidae) coletados em pupários no substrato rim bovino

Objetivou-se com este estudo, identificar as principais especies de parasitoides de Peckia chrysostoma (Wiedemann, 1830) (Diptera: Sarcophagidae), em Lavras, Minas Gerais, Brasil, cujas larvas foram alimentadas com rim bovino. As coletas foram realizadas durante o periodo de agosto de 2003 a marco de 2004. Um total de 921 parasitoides foram coletados em 942 pupas dessa mosca. A prevalencia natural de parasitismo foi de 97%.

Novos hospedeiros para Hemencyrtus herbertii Ashmead (Hymenoptera: Encyrtidae) coletados em Lavras, Minas Gerais

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.

Primeiro relato de Brachymeria podagrica (fabricius, 1789) (Hymenoptera: Chalcididae) parasitando Squamatoides trivittatus Curran, 1927 (Diptera: Sarcophagidae) no Brasil

This work reports for the first time in Brazil the occurrence of the parasitoid Brachymeria podagrica (Fabricius, 1789) (Hymenoptera: Chalcididae) collected from pupae of Squamatoides trivittatus Curran, 1927 (Diptera: Sarcophagidae) reared from bovine kidney. The parasitism prevalence was 4%.

Muscoid Diptera of medical and veterinary importance and their parasitoids in Goiás State.

The objective of this work was to identify flies of medical and veterinary importance and their natural enemies, located around the city of Itumbiara, GO, Brazil. Five thousand eight hundred and twenty-five muscoid dipterous insects and parasitoids were collected from a Brazilian savanna (cerrado) area of Itumbiara. Substrates for obtaining flies were liver. The most frequent fly and parasitoid species found were: Fannia pusio (29.2%) and Atherigona orientalis (26.8%) (flies), Nasonia vitripennis (56.0%) and Brachymeria sp. (26.6%) (parasitoids). Musca domestica was the dipterous species of greatest sanitary importance collected. This is the first report of the species Brachymeria sp. and Hememcyrtus sp. in the State of Goias. Data contribute to the knowledge of dipterous and parasitoids fauna in the state of Goias.

Muscoid flies associated with pig carcasses and their parasitoids collected in areas of pasture and of wood in Goiás, Brazil.

Muscoid dipterous insects associated with pig carcass and their parasitoids collected in pasture and wood were collected from savanna (cerrado) at Goias, Brazil. The species collected more often were: Chrysomya albiceps (89.5%), Ophyra sp. (6.9%) (flies) and Pachycrepoideus vindemiae (33.3%) and Spalangia endius (38.8%) (parasitoids). The parasitism rate was 0.4%.