Appearance: Our smallest sulphur; flies close to ground. Upper side yellow with black markings. Forewing below has submarginal black spots and a yellowish basal area. Hindwing below varies from pale yellow to gray-green.
Size: Small; 3/4 to 1 1/4 inch
Habitat: Open, dry places, fields, grasslands, meadows and hillsides in the plains and foothills. (Found high in Rocky Mountains per Pyle, 2002)
Season: May through fall
Larval Foodplant: Aster family, such as fetid and marsh marigold, dogwood, and cosmos
Did You Know…
“Multiple generations erupt northward,and no stage overwinters in the north” (Pyle, 2002). Cannot survive cold winters, therefore re-colonizes every summer.
Species Gallery (click to enlarge)