Three new species are described and illustrated: Simulium (Hemicnetha) cristalinum from Roraima, Brazil, (female, male, pupa and larva) belonging to the brachycladum group; (Grenieriella) wygodzinskyorum from Junín, Perú (female, male, pupa and larva) belonging to the lahillei group and of the sumapazense from Cundinamarca, Colombia, the pupa, and part of the male are described.
Simuliidae