Eastern Tiger Swallowtail Butterfly [Papilio glaucus] found near the Blue Ridge Parkway, milepost 437, along the Mountains-to-Sea Trail, on 23 August 2013. This butterfly is a member of the Swallowtail (Papilionidae) family. The photo below shows it on the Purplestem Angelica. Wikipedia Listing: Papilio glaucus
