Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Genus Papilio

Eastern Black Swallowtail larvae - Papilio polyxenes Western Tiger Swallowtail - Papilio eurymedon Papilio glaucus - Papilio palamedes Black Swallowtail - Papilio polyxenes cocoon - Papilio Housing OK? - Papilio zelicaon Spicebush Swallowtail caterpillar - Papilio troilus Interesting Orange Caterpillar - Papilio
Show images of: caterpillars · adults · both
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Papilionoidea (Butterflies (excluding skippers))
Family Papilionidae (Swallowtails, Parnassians)
Subfamily Papilioninae
Genus Papilio
Synonyms and other taxonomic changes
Papilio Linnaeus 1758
Several Swallowtails have recently been moved to genus Pterourus(1). Some other swallowtails (Giant Swallowtail and relatives) are moved to genus Heraclides. See for instance, this site.

The following quote is from Butterflies of Canada:
"There has been a tendency to subdivide swallowtails into smaller genera to reflect groupings based on wing pattern, larval appearance, and so on, so that the tiger swallowtail group was placed in the genus Pterourus, the giant swallowtail group in the genus Heraclides, and the black swallowtail group in the genus Papilio. Miller reviewed this situation in his comprehensive revision of the higher classification of the swallowtails of the world and concluded: "Recent attempts to subdivide Papilio into genera... are unconvincing" (Miller, 1987). We follow Miller in accepting a more inclusive concept for the genus Papilio and treat these smaller groupings as species groups within Papilio."
Opler and Warren and All-Leps also do not recognize Pterourus and Heraclides as valid genera.

In the species listing under the "Taxonomy" heading above, the species P. machaon thru P. indra would be "typical" Papilio; the species P. eurymedon thru P. palamedes would be Pterourus; and P. aristodemus thru P. anchisiades would be Heraclides.
Explanation of Names
From Latin papilio/papilionis, a butterfly (2) or moth (Internet searches).
Print References
Scott, p. 9 (2)
Miller, J.S. 1987. Phylogenetic Studies in the Papilioninae (Lepidoptera: Papilionidae). Bulletin of the American Museum of Natural History 186: 365-512.
Works Cited
1.Florida Butterfly Caterpillars And Their Host Plants
By Marc C. Minno, JERRY F. BUTLER, DONALD W. HALL
2.The Butterflies of North America: A Natural History and Field Guide
By James A. Scott