Polygonia faunus (green comma) is a butterfly of the Nymphalidae family. It is found in North America. The wingspan is 45–64 mm. The butterfly flies from May to September depending on the location. The larvae feed on Upland Willow (Salix humilis), Betula lenta, Alder, Rhododendron occidentale, and Ribes species. \n* male, dorsal side - MHNT \n* male, ventral side - MHNT \n* female, Temagami, Ontario