D.  Whitmore, ?Notes on two species of acalyptrate flies ( Diptera , Megamerinidae , Ulidiidae )?, Bollettino dell Associazone Romana di Entomologia, vol. 59, pp. 103?109, 2004.

D. P.  Sumner, ?Key to the identification of Diopsoidea?, in teaching material for Dipterists Forum workshops, 2004.