Conopidae
	Conopinae
		Conopini
			Physoconops brachyrhynchus (Macquart)  (1)
			P. discalis (Williston)  (1)
			P. excisus (Wiedemann)  (1,4)
			P. fronto (Williston)  (1)
			P. obscuripennis (Williston)  (1)
			P. sylvosus (Williston)  (1)
		Physocephalini
			Physocephala sagittaria (Say)  (1)
	Myopinae
			Zodion abitus Adams  (1)
			Z. americanum Wiedemann  (1,3)
			Z. anale Krober  (1)
			Z. fulvifrons Say  (1,3,5)
			Z. intermedium Banks  (1,2)
			Z. obliquefasciatum (Macquart)  (1,3)
			Myopa clausa Loew  (1)
			M. vesiculosa Say  (1)
			Thecophora occidensis (Walker)  (1)
			T. propinqua (Adams)  (1)
1. In OSU Collection - Det. D. C. Arnold
2. In OSU Collection - Det. C. H. Curran
3. In OSU Collection - Det. G. S. Stains
4. Reported in Diptera Catalog
5. Reported by Ahring & Howell, 1968
5 genera - 17 species