Appearance: Shows considerable variability of appearance between sexes and seasonal flights but generally white above with checkered gray (black) pattern on trailing edge of both wings both darker on forewing and on females. Also notice central black bar on leading edge of forewing. Hindwing below can show yellow-brown veining.
Size: Medium; 1 1/2 to 2 1/2 inches
Habitat: Wide variety of sites: open areas, fields and clearings in forests
Season: April through August
Larval Foodplant: Native and exotic plants in the mustard family (e.g. American winter cress, Drummond false arabis, and prairie peppergrass)
Did You Know…
Occurs in a wider variety of habitats than other similar whites even colonizing exotic mustards in disturbed areas.
Species Gallery (click to enlarge)