The Papilionidae Family consists of both Swallowtails and the sub-family, Parnassians.
While there are 600 Swallowtail species worldwide, fewer than 30 species reside in the United States. They are relatively large and colorful, and most have tails on their hindwings (hence the Family’s name).
Parnassians do not have tails and are mainly found in isolated mountainous regions in the western United States.
ID Guide: Papilionidae Family Side-by-Side Photo Comparison
Use the side-by-side comparison of the photos below to identify butterflies in the Papilionidae Family. Click on the butterfly picture to see additional photos, descriptions, and its flight range map.