Witness the Comma butterfly come out of it's pupa, then release it out into the wild! The Comma (Polygonia comma) is native to the Eastern Side of the US. Males are smaller than females, and when mating the male is sometimes covered by the female Comma's wings. It should take around 10-15 days for your pupa to emerge.
 
The caterpillars will feed on a variety of Nettles, Elm Trees, and Hop Vines.