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North American Ecology (US and Canada)Resident in much of northern, western and central North America (Scott 1986). Habitats are COASTAL AND UPPER SONORAN TO HUDSONIAN ZONE STREAMSIDES AND VALLEY BOTTOMS. Hosts plants are usually herbaceous with most known hosts from family Polygonaceae. Eggs are laid singly at the base of the host plant. Individuals overwinter as eggs. There is a variable number of flights each year with more northern and high altitudes have just one flight. Approximate flight times range from JULY15-AUG in the northern part of the range and APR1-OCT31 in the southern part of their range (Scott 1986).