Wings white with black pattern. Related species have at least the hind wing not white; except, H. magnifica is similar, but larger with usually bolder black pattern, and occurs further south. H. magmifica is considered by many authors to be a subspecies of H. hera.
Western North America, north of Arizona and New Mexico.
Caterpillars feed on basin big sagebrush (Artemisia tridentata) and sand sagebrush (A. filifolia). Adults do not feed.