Large, with white-spotted black hindwings and bright orange forewings, these magnificent prairie butterflies are in danger of sliding into the abyss.  Formerly widespread throughout the northeastern United States, there is now but a single viable colony remaining -- at Fort Indiantown Military Reservation in Pennsylvania.  Consider joining NABA and helping conserve butterflies throughout North America.


Prairies, especially tall-grass prairies and wet meadows.  

Flight Period


Caterpillar Foodplants

Prairie Violet (Viola pedatifida) and other violets.

Scientific Information

Scientific Name - Speyeria idalia