Pharmacophagus
Near Toliara, Madagascar
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Papilionidae
Subfamily:	Papilioninae
Tribe:	Troidini
Genus:	Pharmacophagus Haase, 1891
Species:	P. antenor
Binomial name
Pharmacophagus antenor (Drury, 1775)
Synonyms
Papilio antenor Drury, [1773] Papilio antenor var. gehleni Le Moult, 1912 Papilio antenor var. albomaculata Le Moult, 1912 Papilio antenor f. niger Diehl, 1962

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.

• 
  Near Toliara, Madagascar
• 
  Specimen at the National Zoological Museum of China
• 
  chrysalis, Isalo National Park, Madagascar
• 
  empty chrysalis, Isalo National Park, Madagascar
• 
  Feeding

• Hancock, E.G., Broadsmith-Brown, G., Douglas, A.S. & Vane-Wright, R.I. 2008. William Hunter's Museum and discovery of the Madagascan pipevine swallowtail butterfly, Pharmacophagus antenor (Drury, 1773). Antenna, Chiswell Green32(1): 10–17.

• Fiebig
• Larval stages