Ephydridae
	Psilopinae
		Gymnopini
			Mosillus tibialis Cresson  (9)
		Discocerinini
			Discocerina obscurella (Fallen)  (2,10)
			Hydrochasma leucoproctum (Loew)  (2)
			Diclasiopa lacteipennis (Loew)  (2)
			Ditrichophora sp.  (2)
			Polytrichophora orbitalis (Loew)  (2)
		Psilopini
			Leptopsilopa sp.  (2)
	Notiphilinae
		Hydrelliini
			Hydrellia tibialis Cresson  (5)
		Philygriini
			Philygria debilis Loew  (3)
			Nostima approximata Sturtevant & Wheeler  (4)
			N. quinquenotata Cresson  (4,10)
		Notiphilini
			Notiphila macrochaeta Loew  (6)
			N. pulchrifrons Loew  (2,6)
			Paralimna texana Cresson  (2,4)
			Oedenops nudus (Coquillett)  (8)
	Parydrinae
		Parydrini
			Parydra sp.  (2)
		Lipochaetini
			Lipochaeta slossonae Coquillett  (4)
		Hyadinini
			Hyadina sp.  (2)
			Pelina truncatula Loew  (3)
			Ochthera cuprilineata Wheeler  (1,4)
			O. lauta Wheeler  (4)
			O. mantis (DeGeer)  (1)
			Brachydeutera argentata (Walker)  (2)
	Ephydrinae
		Ephydrini
			Cirrula currani (Wirth)  (11, as Ephydra)
			Ephydra packardi Wirth  (11)
			E. riparia Fallen  (11)
		Scatellini
			Scatella triseta Coquillett  (7)
			Scatophila exilis Cresson  (4)
1. In OSU Collection - Det. Cresson
2. In OSU Collection - Det. G. C. Steyskal
3. In OSU collection - Det. W. W. Wirth
4. Reported in Diptera Catalog
5. Reported by Deonier, 1971
6. Reported by Mathis, 1979
7. Reported by Mathis & Shewell, 1978
8. Reported by Mathis & Zatwarnicki, 2002
9. Reported by Mathis et al., 1993
10. Reported by Stoner et al., 1962
11. Reported by Wirth, 1971
22 genera - 27 species