Colosmittia brasileira sp. n. from São Paulo state, Brazil, is described and illustrated based on a male imago. The genus Colosmittia Andersen & Sæther was described based on a single species, C. clavata Andersen & Sæther, from the West Usambara Mountains, Tanzania, East Africa. The discovery of the new species shows that Colosmittia has an Afro-Brazilian distribution pattern.
New species; Brazil; Diptera, biogeography; Inabrezian pattern
