Underside is similar but lighter. Eggs are laid singly at the top of blue grama grass or on other plants.
Caterpillars eat grass blades and pupate underground.
Biennial in Tuolumne County, California. One brood from June-July. G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery. Opler, P. A. and V. Malikul. A field guide to eastern butterflies.