Eastern Tailed-Blue

Eastern Tailed-Blue basking in the sunlight. Its tails and tiny red eyespots distinguish this species from the Spring and Summer Azure butterflies.

Male Eastern Tailed-Blue on a clover flower. These butterflies are abundant in fields, meadows, and prairies.

Female Eastern Tailed-Blues are often charcoal gray rather than blue.

Ventral view of an Eastern Tailed-Blue on an echinacea flower. The red eyespots and tails are similar to those of a hairstreak butterfly. They are probably meant to deflect birdstrikes away from the butterfly's vulnerable head. 

Another female Eastern Tailed-Blue. This species flies from late April through October in our area.