[The fauna and ecology of blackflies (Diptera, Simuliidae) in the Republic of Guinea].

Twenty-nine Simulium species were recorded in the Republic of Guinea. The geographical distribution of the blackfly species in its areas is shown in the paper. The most probable vector of Onchocerca volvulus are S. damnosum s. str and S. sirbanum which predominate in the landscapes of Sudan and Guinea savannas. S. yahense, S. soubrense, and S. sanctipauli are likely to be vectors in the forest-savannas and tropical rain forests.