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North American Ecology (US and Canada)Migratory throughout much of North America with residents in the Southeastern United States and southern Arizona (Scott 1986). Habitats are OPEN OR BRUSHY AREAS. Host plants are usually herbaceous or shrubs with most known hosts largely restricted to one genus, Cassia, in Leguminosae. Eggs are laid on the host plant singly. There are multiple flights each year with the approximate flight time spring to fall in the northern part of the range and year-round in the southern part of their range (Scott 1986).