Fannia is a very large genus of approximately 288 species of flies. The genus was originally described by the French entomologist Jean-Baptiste Robineau-Desvoidy in 1830. A number of species were formerly placed in the genus Musca.
Description
The adults have plumose arista, with the first pre-sutural dorsocentral bristle over half as long as the second. Males without a lower orbital bristle. ==Species list==