Title: Biblio RTF Export
Author: Biblio 7.x

H.  Loew, ?Diptera Americae septentrionalis indigena. Description H. Loew.?, in Diptera Americae septentrionalis indigena, vol. Centuria quinta, Berolini, typis A.W. Schadii: Berliner entomologische Zeitschrift, 1864, pp. 49-104.

H.  Loew, ?Diptera Americae septentrionalis indigena. Description H. Loew.?, in Diptera Americae septentrionalis indigena, vol. Centuria quarta, Berolini, typis A.W. Schadii: Berliner Entomologische Zeitschrift, 1863, pp. 275-326.

H.  C. Curran, ?Descriptions of Nearctic Diptera?, The Canadian Entomologist, vol. 59, pp. 79-92, 1927.

F. C.  Thompson, ?Keys to Nearctic Syrphidae (Diptera)?, p. 88, 1991.

C.  F. Thompson, ?The genus Pleskeola Stackelberg (Diptera: Syrphidae), a junior synonym of Parhelophilus Girschner?, Proceedings of the Entomological Society of Washington, vol. 99, pp. 628-640, 1997.