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Papilio troilus
Although the image is not great. I think the color pattern greatly resembles a male Spicebush Swallowtail, Papilio troilus.
http://bugguide.net/node/view/719939/bgi...
The only thing I can say: Papilionidae, Papilioninae, some kind of a swallowtail.
http://bugguide.net/node/view/43480/bgpa...