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North American Ecology (US and Canada)Mostly migratory in North America with resident populations in Southern California/Arizona, s. Texas, and S. Fla. (Scott 1986). Habitats are subtropical to upper Sonoran zone open woodland and desert. Host plants are usually herbaceous or shrubs with most known hosts from one family, Leguminosae. Eggs are laid on the host plant singly. There are multiple flights each year with the approximate flight time year-round in Fla and Tex, late Mar-Nov30 in S. Calif. (Scott 1986).