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1.
Acta amaz ; 35(4): 463-472, out.-dez. 2005. ilus, tab
Article in Portuguese | LILACS | ID: lil-420522

ABSTRACT

É acrescentado um novo caráter pupal para a espécie T. hirtipupa (Lutz,1910). É evidenciada a existência de dentes no cibário da fêmea de T. guianense (Wise,1911), principal espécie envolvida na transmissão da filaria Onchocerca volvulus (Leuckart,1893) no foco da região amazônica. É proposta uma nova relação para os artículos antenais da larva de T. guianense. É descrita uma nova espécie para o gênero Thyrsopelma Enderlein,1934, T. jeteri sp.n., proveniente da bacia hidrográfica do rio Uruguai, no Estado do Rio Grande do Sul. São apresentados os parâmetros físico-químicos do criadouro de onde provem o material tipo. É apresentada uma chave para diferenciação das pupas das espécies constantes neste gênero.


Subject(s)
Simuliidae , Classification
2.
Mem. Inst. Oswaldo Cruz ; 95(supl.1): 211-4, 2000. tab, mapas
Article in English | LILACS | ID: lil-274883

ABSTRACT

Insects of the Simuliidae family have been the object of control in Rio Grande do Sul since the 70s. Their constant attacks became a social-economical problem as well as a problem of Public Health, with serious consequences to men and to the economy of the areas in which the insects develop. At first, the control was done with a chemical larvicide Themephos ABATE 500 E, but an imperfect measuring of outflow to determine the quantity of the product made Simulium spp. resistant to it. From 1983 on, following a study of a new method for the outflow measuring, we started to use a biological larvicide Bacillus thuringiensis serovar israelensis based. The biological control uses the new method in 36.4 percent of the state area, assisting about 3,500,000 inhabitants


Subject(s)
Animals , Humans , Bacillus thuringiensis , Insect Control/methods , Insecticides , Simuliidae/drug effects , Brazil , Larva/drug effects
3.
Mem. Inst. Oswaldo Cruz ; 84(supl.4): 145-148, 1989. ilus
Article in Portuguese | LILACS | ID: lil-623861

ABSTRACT

The predation and phoretic association (occasional?) among simulids and mollusks are being registered here for the first time on the Neotropical region. These inter-relations observations were obtained among Asolene (Pomella) megastoma (Sowerby, 1825) and the simulids: Simulium (Thyrsopelma) Orbitale Lutz, 1910; Simulium (Psaroniocompsa) spp. The material studied is proceeding from the Uruguai river Hidrological Basin. Based on the mollusks natural habitat, it is here suggested his use as a possible integrated management element for simulids species which immature stages live on mighty river with rocks.


Subject(s)
Animals , Diptera , Gastropoda , Culicomorpha , Mollusca
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