出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/06/21 11:31 UTC 版)
Polygonia (from Greek πολύς - polys, "many" and γωνία - gōnia, "angle") is a genus of butterflies with a conspicuous white mark on the underside of each hindwing, hence the common name Comma. They also have conspicuous angular notches on the outer edges of their forewings, hence the other common name Anglewing butterflies. For other anglewings see the related genus, Nymphalis. Many members of the genus, Polygonia, hibernate as adults. This genus is sometimes classified as a subgenus of Nymphalis.