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North American Ecology (US and Canada)Resident in much of northern North America and extending patchily south into the Rocky Mountains, with a non-contiguous population in California/southern Oregon (Scott 1986). Habitats are usually CANADIAN TO ARCTIC/ALPINE ZONE PRAIRIE, OPEN WOODLAND, TUNDRA. Hosts plants are usually herbaceous and include species from many families. Eggs are laid on the host plant singly. Individuals overwinter as larvae or pupae. There is one flight each year with the approximate flight time JULY1-AUG30 in most of the range, JUN15-JULY15 in lower altitudes, and JULY 15-AUG15 in the most northern parts of the range (Scott 1986). Synonomized with Plebejus glandon by some sources (Scott 1986).