Satyrium calanusSatyrium calanus, the banded hairstreak, is a butterfly in the family Lycaenidae.Appearance, behavior, and distributionThe banded hairstreak is a common hairstreak east of the Rocky Mountains in North America. It is a territorial butterfly that will challenge other butterflies invading its territory.SubspeciesListed alphabetically:S. c. albidus Scott, 1981S. c. calanusS. c. falacer ''S. c. godarti''Life cycleEggs are laid singly on the host plants and hatch in the spring. There is a single brood that flies early June to late August.Host plantsHost plants include oak, hickory, and walnut.Similar species Edwards' hairstreak Hickory hairstreak