North American Ecology (US and Canada)
provided by North American Butterfly Knowledge Network
Resident in western North America (Scott 1986). Habitats are NATURAL, SOMETIMES DISTURBED, OPEN AREAS. Host plants are usually herbaceous including many species, but mostly in one family, CRUCIFERAE. Eggs are laid on the host plant singly. Individuals overwinter as pupae. There is a variable number of flights based on latitude each year with the approximate flight time JUN1-JUL1 in the northern part of the range and MAY1-JUN1 in the southern part of their range (Scott 1986). Listed as a subspecies of Pieris callidice by some sources (Scott, 1986).
