Underside of hindwing has pearly white spots. Males perch and sometimes patrol in gulches for females. Eggs are laid in batches on underside of host plant leaves and sometimes on flower buds.
Caterpillars eat leaves and flowers, and feed together in groups.
Two broods from June-August. Sagebrush scrub, pinyon-juniper woodlands, dry gulches. Eastern North Dakota west to eastern Washington, south to New Mexico, southern Arizona, and eastern California. G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery. Opler, P. A. and V. Malikul.