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Comparative studies on the affinities of two black flies, Simulium metallicum and S. ochraceum for the larvae of Onchocerca volvulus in Guatemala

1980; Japan Society of Medical Entomology and Zoology; Volume: 31; Issue: 4 Linguagem: Inglês

10.7601/mez.31.261

2185-5609

Sumiyo Ito, Ikuo Tanaka, A. Jha,

Insects and Parasite Interactions

The affinity of Simulium metallicum for Onchocerca volvulus was compared with that of a good intermediate host, S. ochraceum, by maintaining infected flies under 25±0.5℃. The larval development in S. ochraceum was synchronous, but that in S. metallicum was asynchronous and malformed, stunted larvae often appeared. The results suggested that the ability for S. metallicum to transmit O. volvulus would come to about 1/3.5-1/5 of that of S. ochraceum. Some information about the affinity of S. horacioi Okazawa and Onishi, 1980 for O. volvulus that closely resembles S. metallicum was given.