Papilio machaon oregonius
| Oregon swallowtail | |
|---|---|
| A 1977 U.S. postage stamp featuring the Oregon Swallowtail butterfly | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Papilionidae |
| Genus: | Papilio |
| Species: | |
| Subspecies: | P. m. oregonius |
| Trinomial name | |
| Papilio machaon oregonius W.H. Edwards, 1876 | |
The Oregon swallowtail (Papilio machaon oregonius, sometimes classified as Papilio oregonius or Papilio bairdii oregonius) is a subspecies of swallowtail butterfly native to the United States of America, Oregon, Washington, and Idaho and south-central British Columbia in Canada. In 1976, it became one of the first four butterflies that the United States Postal Service placed on a U.S. stamp.
The Oregon swallowtail was declared the state insect of Oregon in 1979 by the Legislative Assembly.