SESIIDAE
	Tenthiinae
		Pennisetiini
			Pennisetia marginata (Harris)  (1)
		Tenthiini
			Zenodoxus maculipes Grote & Robinson  (3)
	Paranthreninae
		Paranthrenini
			Paranthrene simulans (Grote)  (1)
			Vitacea polistiformis (Harris)  (1, larvae only)
	Sesiinae
		Melittiini
			Melittia cucurbitae (Harris)  (1)
			M. gloriosa Edwards  (1)
			M. grandis (Strecker)  (1)
			M. snowii Edwards  (1,3)
		Osminiini
			Calasesia coccinea (Beutenmuller)  (2,3)
		Synanthedonini
			Synanthedon exitiosa (Say)  (1)
			Podosesia aureocincta Purrington & Nielsen  (1,4)
			P. syringae (Harris)  (1)
			Sannina uroceriformis (Walker)  (3)
			Carmenta suffusata Engelhardt  (3)
1. In OSU Collection - Det. D. C. Arnold
2. In OSU Collection - Determiner unknown
3. Reported by Engelhardt, 1946
4. Reported by Purrington & Nielsen, 1977
10 genera - 14 species