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North American Ecology (US and Canada)Resident in western North America, migratory in some parts of its range (Scott 1986). Habitats are Lower Sonoran to Candian zone open woodland, fields, desert and prairie. Host plants are usually herbaceous or shrubs with most known hosts from two families, Polygonaceae and Leguminosae. Eggs are laid on the host plant leaves or flowers singly. Larvae eat flowers, pods and leaves and are tended by ants. Individuals overwinter as larvae. There are variable numbers of flights based on latitude and location, Mar1-Oct31 on the coast, and May15-Sep.15 elsewhere there are many flights, in far north one flight June15-early July and one flight in areas above timberline, July1-early Aug. (Scott 1986).