Butterflies at Home

Eastern Tailed-blue

The Eastern Tailed-blue (Everes comyntas) is a small butterfly, with the male being a cobalt blue and the female a slate gray color. It can often be found in open grassy spaces such as sunny fields and pastures. It is most common in eastern North America, although some can be found in parts of western states such as Oregon, Washington and California.

Wing spread: 0.8" - 1.0"

Host Plants: Vetches, clovers, alfalfa and other legumes

Eastern Tailed-blue Butterfly Life Cycle Stages and Times

Stage Typical Duration
Egg stage 3 to 6 days
Caterpillar (larval) stage 2 to 3 weeks
Chrysalis (pupal) stage 8 to 12 days
Adult butterfly stage 4 to 10 days


Eastern Tailed-blue Butterfly
Eastern Tailed-blue Butterfly