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North American Ecology (US and Canada)Resident in northern North America, west to Alberta. (Scott 1986). Habitats are UPPER AUSTRAL TO LOWER CANADIAN ZONE MOIST MEADOWS, MARCHES AND LAKESHORES. Hosts plants are usually herbaceous with most known hosts from genus Rumex (POLYGONACEAE). Eggs are laid on the host plant singly. Individuals overwinter as eggs. There are usually two flights per year, JUN15-JULY15, AND AUG15-SEP15; in high altitudes and northern parts of the range there is one flight between JULY15-AUG15 (Scott 1986).