Colias meadii

Description

Colias meadii, the Mead's sulphur, is a butterfly in the family Pieridae found in North America. Its range includes the Rocky Mountains in Canada and the United States. Flight period is from July to August. Wingspan is from 35 to 44 mm. Larvae feed on Trifolium spp. Astragalus alpinus, Oxytropis deflexa and Vicia americana.