Two new neotropical species of Monohelea Kieffer and Downeshelea Wirth & Grogan (Diptera: Ceratipogonidae)Felippe-BauerMaria LuizaSpinelliGustavo R. Instituo Oswaldo Cruz, Departamento de Entomologia Rio de Janeiro Brasil Instituo de limnologia "Dr. Raul A. Ringuelet" La Plata Argentina 061994892161165Two new Neotropical predaceous midges are described and illustrated, Downeshelea charrua from Uruguay, and Monohelea bidenata from Argentina. The first species is described from female and male specimens; only one male is know from the second.Neotropical predaceous midgesDowneshelea charrua sp. n.Monohelea bidentata sp.n.Full text available only in PDF format.Texto completo disponível apenas em PDF.