Apidae
	Bombinae
		Bombini
			Bombus affinis Cresson  (5)
			B. appositus Cresson  (5)
			B. auricomus (Robertson)  (2,3)(4, as B. nevadensis
				auricomus Robertson)
			B. bimaculatus Cresson  (2,3,4)
			B. fraternus (Smith)  (2,3,5)
			B. griseocollis (DeGeer)  (2,3)
			B. impatiens Cresson  (1,3)
			B. morrisoni Cresson  (2)
			B. p. pennsylvanicus (DeGeer)  (1,2,3,5)
			B. v. vagans Smith  (2)
			Psithyrus variabilis (Cresson)  (1,2,3,4)
	Apinae
		Apini
			Apis mellifera L.  (1,5)
1. In OSU Collection – Det. G. Bohart
2. In OSU Collection – Det. Frison
3. In OSU Collection – Det. J. Grixti
4. Reported in Hymenoptera Catalog
5. Reported by Kondratieff et al., 2007
3 genera – 12 species