Resident in North America (Scott 1986). Habitats are SHADED STREAMSIDES. Host plants are usually herbaceous. Host plants include 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 FEB1-APR1 in the southern part of their range (Scott 1986).