Greya subalba

Greya subalba is a moth of the family Prodoxidae. In North America it is found in southern British Columbia, Alberta, Washington, Oregon, northern Idaho, western Montana and south to south-western Oregon. The habitat consists of dry, forb-rich steppe.

The wingspan is 11–16 mm.

The larvae feed on Lomatium species. Young larvae feed on the developing seeds of their host plant.