Alternative combinations: Desmatomyia scudderi, Psilocephala scudderi
Full reference: T. D. A. Cockerell. 1909. Fossil Diptera from Florissant, Colorado. Bulletin of the American Museum of Natural History 26:9-12
Sister taxa: none
Type specimen: AMNH 18860, an exoskeleton (complete fly). Its type locality is Florissant, Station 14, which is in a Chadronian lacustrine - large shale in the Florissant Formation of Colorado.
Average measurements (in mm): body 11.0 x 2.0, wing length 6.24