Resumo

SHELLEY, A. J.; MAIA-HERZOG, M.; DIAS, A. P. A. Luna  e  COUCH, C. A.. Description of the adults and pupa of Simulium (Trichodagmia) perplexum, new species (Diptera: Simuliidae). Mem. Inst. Oswaldo Cruz [online]. 1989, vol.84, n.3, pp. 343-349. ISSN 0074-0276.  http://dx.doi.org/10.1590/S0074-02761989000300008.

Simulium perplexum, new species, is described from the male, female and pupa and compared with the closely related S. guianense Wise. The distribution and biology of the new species are discussed. The confusion between S. perpelxum and S. guianense has hitherto prevented accurate identification of the primary vector of human onchocerciasis in highling, hyperendemic areas of the Amazônia focus of Brazil and southern Venezuela.

Palavras-chave : Simuliidae; vector species of onchocerciais; Simulium guianense; Simulium perplexum; Amazônia.