Its body is somewhat shorter than the rather similar Western Tiger Swallowtail, with which its range overlaps; it also lacks the black stripes, converging toward the tail, of the latter.
Papilio rutulus or Western Tiger Swallowtail, endemic to the Western United States
Papilio ulysses | Papilio machaon | Papilio | Papilio rutulus | Papilio rex | Papilio ophidicephalus | Papilio glaucus | Papilio cyproeofila | Papilio xuthus | Papilio polyxenes | Papilio polytes | Papilio mayo | Papilio homerus | Papilio gallienus | Papilio erithonioides | Papilio echerioides | Papilio demoleus | Papilio canadensis | Papilio appalachiensis | Papilio antimachus | Papilio alexanor |