Satyrium edwardsii, the Edwards' hairstreak, is a species of butterfly in the family Lycaenidae. It is found in the eastern parts of the United States and in the southern parts of the Canadian provinces from Saskatchewan to Quebec.Edwards' Hairstreak, Butterflies of Canada
Larvae feed on Quercus species, including Q. ilicifolia
References
R. P. Webster and M. C. Nielsen (1984). Myrmecophily in the Edward's hairstreak butterfly Satyrium edwardsii (Lycaenidae). Journal of the Lepidopterists' Society 38(2):124–133.