Pharmacophagus

{{Short description|Genus of butterflies}}

{{Use dmy dates|date=December 2023}}

{{Speciesbox

| image = Madagascar giant swallowtail (Pharmacophagus antenor).jpg

| image_caption = Near Toliara, Madagascar

| display_parents = 3

| parent_authority = Haase, 1891

| taxon = Pharmacophagus antenor

| authority = (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.

File:Madagascar giant swallowtail (Pharmacophagus antenor) in flight.jpg|Near Toliara, Madagascar

File:Pharmacophagus antenor (drury) specimen at the National Zoological Museum of China.jpg|Specimen at the National Zoological Museum of China

File:Madagascar giant swallowtail (Pharmacophagus antenor) chrysalis.jpg|chrysalis, Isalo National Park, Madagascar

File:Madagascar giant swallowtail (Pharmacophagus antenor) chrysalis (empty).jpg|empty chrysalis, Isalo National Park, Madagascar

File:Vlinder, Reniala 2.JPG|alt=|Feeding