Comma
Guides
Polygonia
comma, anglewing
Polygonia is a genus of butterflies in the family Nymphalidae, commonly known as commas or anglewings. Members are recognized by a conspicuous white comma-shaped mark on the underside of each hindwing and angular notches on the outer edges of the forewings. The genus exhibits remarkable seasonal polyphenism, with distinct light and dark morphs corresponding to non-diapausing and diapausing generations. Many species hibernate as adults. The genus has been alternatively classified as a subgenus of Nymphalis.