A.  Soos and Papp, L., ?Syrphidae - Conopidae?, in Catalogue of Palaearctic Diptera, vol. 8, Budapest: Akadémiai Kiad¢, 1988.

A.  Soos and Papp, L., Volume 8: Syrphidae to Conopidae, vol. 8. Budapest, Hungary: Hungarian Natural History Museum, 1988.