Brassy-ringlet-complex
Guides
Erebia callias
Colorado Alpine
Erebia callias, commonly known as the Colorado Alpine, is a butterfly species in the family Nymphalidae. It inhabits alpine environments in the Rocky Mountains of Wyoming and Colorado, as well as mountain ranges in the eastern Palearctic. The species has a wingspan of 35–38 mm and is part of the brassy ringlet complex, showing close morphological similarity to Siberian brassy ringlets.