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

M.  Chvála, ?Family Conopidae?, in Catalogue of Palaearctic Diptera. Volume 8. Syrphidae - Conopidae, vol. 8, A.  Soos and Papp, L., Eds. Elsevier Science Publishers, Amsterdam, Oxford, 1988, pp. 245-272.

V. N.  Tanasijtshuk, ?Family Pipunculidae?, in Catalogue of Palaearctic Diptera. Volume 8. Syrphidae - Conopidae, vol. 8, A.  Soos and Papp, L., Eds. Amsterdam: Elsevier Science Publishers, 1988, pp. 230-245.