Papilio aegeus
| Orchard swallowtail butterfly | |
|---|---|
| Female, Cairns, Queensland | |
| Male, Melbourne Zoo | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | Insecta | 
| Order: | Lepidoptera | 
| Family: | Papilionidae | 
| Genus: | Papilio | 
| Species: | P. aegeus | 
| Binomial name | |
| Papilio aegeus Donovan, 1805 | |
| Subspecies | |
| 
 | |
| Range of orchard swallowtail   P. a. aegeus;   P. a. ormenusP. a. aegeus temporary range | |
| Synonyms | |
| 
 | |
Papilio aegeus, the orchard swallowtail butterfly or large citrus butterfly is a species of butterfly from the family Papilionidae, that is found in eastern Australia and Papua New Guinea.
The larvae of this species are sometimes considered a pest, due to their feeding on citrus leaves in suburban gardens.