Papilio anchisiades, the ruby-black phoenix Anhisiadi or ruby-spotted swallowtail or red-spotted swallowtail, is a butterfly of the family Papilionidae. It is found from southern Texas south to Argentina. Rare strays can be found up to Kansas, southeastern Arizona, and western Texas.
The wingspan is 70–100 mm.
The larvae feed on various species of the family Rutaceae, including Citrus, Casimiroa, and Zanthoxylum species. The adults feed on flower nectar.
