A survey of adult mosquitoes in the area Palmar dam, Uruguay, was conducted from October 1980 to March 1981, prior filling reservoir. The Culicidae fauna consisted 22 species 7 genera: Aedeomyia Theobald, Aedes Meigen, Anopheles Culex Linnaeus, Mansonia Blanchard, Psorophora Robineau-Desvoidy and Uranotaenia Lynch-Arribálzaga; most diverse genera being (subgenus Ochlerotatus Lynch-Arribálzaga),...