Andrenidae
	Andreninae
			Andrena andrenoides (Cresson)  (5)
			A. arenicola LaBerge & Ribble  (3,5)
			A. crawfordi Viereck  (3)
			A. dapsilis LaBerge  (3,4)
			A. erigeniae Robertson  (3)
			A. erythrogaster (Ashmead)  (3)
			A. haynesi Viereck & Cockerell  (1)
			A. imitatrix Cresson  (4)
			A. krigiana Robertson  (3)
			A. perplexa Smith  (3)
			A. personata Robertson  (3)
			A. rubi Mitchell  (3,4)
			A. sitiliae Viereck  (3)
			A. trapezoidea Viereck  (3)
			A. unicostata LaBerge  (3,4)
	Panurginae
			Protandrena bancrofti Dunning  (3)
			P. mexicanorum (Cockerell)  (1)
			Pseudopanurgus rugosus (Robertson)  (1)
			Heterosarus illinoiensis (Cresson)  (3)
			Metapsaenythia a. abdominalis (Cresson)  (1)
			Calliopsis andreniformis Smith  (1,3)
			Perdita a. albipennis Cresson  (1,2)
			P. bequaerti indianensis Cockerell  (3,6)
			P. ignota crawfordi Cockerell  (3,7)
			P. pratti Cockerell  (3,7)
1. In OSU Collection – Det. G. Bohart
2. In OSU Collection – Det. K. V. Krombein
3. Reported in Hymenoptera Catalog
4. Reported by LaBerge, 1971
5. Reported by LaBerge & Ribble, 1972
6. Reported by Timberlake, 1954
7. Reported by Timberlake, 1956
7 genera – 25 species