North American Ecology (US and Canada)

Resident in northern North America (Scott 1986). Habitats are ARCTIC/ALPINE TUNDRA, especially dry ridges and eskers. Host plants are usually herbaceous with hosts largely restricted to a few species in one family, Leguminosae. Individuals overwinter as young, third-instar and full-grown larvae and are probably biennial.. There is one flight each year with the approximate flight time JUN15-AUG31 (Scott 1986).