Eastern Tiger Swallowtail (dark form, Papilio glaucus) with one tail. Probably lost it on one of the sharp leaves.
Posts Tagged: Eastern
Swallowtails
Pipevine Swallowtail (Battus philenor) and Eastern Tiger Swallowtails (Papilio glaucus)
Tiger Swallowtail
Papilio glaucus, dark form