Bithoracochaeta Stein is a Neotropical genus of Muscidae, Coenosiinae, known from ten species recorded from Argentina, Brazil, Costa Rica, Cuba, Ecuador, Guyana, Jamaica, Mexico, Panama, Paraguay, Peru, Puerto Rico, Surinam, Uruguay and Venezuela. The genus is recorded for the first time from Colombia, with the occurrence of the following species: B. annulata Stein, 1911; B. calopus (Bigot, 1885); B. flavicoxa Malloch, 1934; B. leucoprocta (Wiedemann, 1830); B. maricaensis Couri & Motta, 1995 and B. varicornis (Coquilett, 1900). B. nigricoxa, spec. nov. is described from Mexico and Brazil. A brief diagnosis of the known species and a complete description of the new species are given.
Morphology; Descriptions; Terminalia; Taxonomy
