Tailed-blue
Guides
Cupido comyntas
Eastern Tailed-Blue, Eastern Tailed Blue
Cupido comyntas, commonly known as the eastern tailed-blue, is a medium-sized butterfly native to eastern North America. It is distinguished from other blue butterflies in its range by the presence of a small thin tail on each hindwing. The species has been observed in laboratory settings by researchers studying butterfly ecology and pesticide toxicology, and is considered a favorite among some entomologists due to its accessibility for study.