A large North American swallowtail butterfly, Battus philenor, which has greenish-black forewings and iridescent bluish-green hindwings and feeds on the pipe vine.
Origin
Early 20th century.
Definition of pipevine swallowtail in US English:
pipevine swallowtail
noun
A large North American swallowtail butterfly, Battus philenor, which has greenish-black forewings and iridescent bluish-green hindwings and feeds on the pipe vine.