Papilio pilumnus

Papilio pilumnus, the three-tailed tiger swallowtail, is a species of swallowtail butterfly from the genus Papilio that is found in Texas, Mexico and Guatemala. Papilio xuthus and Papilio appalachiensis are also of the same genus.

The uppersides of both the forewings and hindwings are yellow with a black basal bands. The wings are bordered by a black band with a submarginal yellow stripe. The hindwing has three tails and two blue spots above the shortest tail. Adults are on wing from March to October in Mexico. Adults feed on flower nectar.

The larvae feed on the leaves of Litsea species.