Found on Bitternut Hickory. Although the Hickory Hairstreak occurs in this area, it is not always easy to tell the difference between that species and the Banded Hairstreak, especially, as a caterpillar. Most likely it is Banded Hairstreak as they are so common. To see what the Banded Hairstreak looks like: http://www.pbase.com/laroseforest/image/160753226