Altitudinal-migrant
Guides
Nymphalis antiopa
Mourning Cloak, Camberwell Beauty
Nymphalis antiopa is a large, distinctive butterfly native to Eurasia and North America. Adults are among the longest-lived butterflies, with lifespans of 11–12 months. The species is notable for its early spring emergence, often before snow has melted, and for seasonal altitudinal migrations in some regions. Larvae feed gregariously on willows, elms, and other woody plants, while adults primarily consume tree sap, rotting fruit, and aphid honeydew rather than nectar.