 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (March 2020) |
| Papilio rutulus | |
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| Papilio rutulus. Dorsal view | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Papilionidae |
| Genus: | Papilio |
| Species: | P. rutulus
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| Binomial name | |
| Papilio rutulus H. Lucas, 1852
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Papilio rutulus, the western tiger swallowtail, is a swallowtail butterfly belonging to the Papilionidae family. The species was first described by Hippolyte Lucas in 1852.
Like the other tiger swallowtails, the western tiger swallowtail was formerly classified in genus Pterourus, but modern classifications all agree in placing them within Papilio.