Papilio thersites, the Thersites swallowtail or false Androgeus swallowtail, is a Neotropical butterfly of the family Papilionidae.

P. thersites F. (9 a) is similar to the well known P. lycophron Hbn.

In the male the yellow band on the forewing is very broad and the cell-spot very large.

In the female the forewing has a curved yellow band.

This Papilionidae-related article is a stub.