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Sheridan's Green Hairstreak Butterfly

Wyoming State Butterfly

Sheridan's Green Hairstreak Butterfly Callophrys sheridanii (state butterfly of Wyoming). Photo by Biodiversity Institute / Flickr (noncommercial use permitted with attribution/no derivative works).

Official State Butterfly of Wyoming

Wyoming designated Sheridan's Green Hairstreak Butterfly (Callophrys sheridanii) as the official state butterfly in 2009.  All State Insects

Found in Wyoming's mountains and foothills, Sheridan's green hairstreak is a symbol of spring arriving in Wyoming (it's the first butterfly to emerge from a chrysalis).