One of our largest, most beautiful, and fairly common butterflies, the Tiger Swallowtail in its light form is unmistakable. But the females in this area can be light or dark. The dark form females are thought to gain protection from predators by mimicking the Pipe Vine Swallowtail.
As a caterpillar they feed on specific plants including Tulip tree ,Black Cherry and Sweet bay. Nectar plants for the adult butterfly are very widespread, but the species prefers tall herbs such as Joe-pye-weed as show in the photos.