(Pharmacophagus antenor)
Pharmacophagus antenor, the Madagascar giant swallowtail, is a butterfly from the family Papilionidae. As the common name implies, it is large (12– to 14-cm wingspan) and endemic to Madagascar. It is the only species in the genus Pharmacophagus. The larvae feed on Aristolochia acuminata and Quisqualis grandidieri.