North American Ecology (US and Canada)
Resident throughout North America (Scott 1986). Habitats are OPEN AREAS AT ALL ALTITUDES; COMMON IN ALFALFA FIELDS. Host plants are usually herbaceous and include many species, but mostly in one family, Leguminosae
. Eggs are laid on the host plant singly. Individuals overwinter as 3rd or 4th instar larvae. There is a variable number of flights based on latitude (Scott 1986).
Scott, J. A. 1986. The butterflies of North America. Stanford University Press.