Papilio joanae

Ozark swallowtail
Female
Male
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Papilionidae
Tribe:	Papilionini
Genus:	Papilio
Species:	P. joanae
Binomial name
Papilio joanae J. Heitzman, 1973

Papilio joanae, the Ozark swallowtail, is a North American butterfly species in the family Papilionidae. It was once considered a synonym of the black swallowtail (Papilio polyxenes).

The Ozark swallowtail is almost identical to the black swallowtail. Despite this similarity, an analysis of the Ozark swallowtail's suggests that it is actually more closely related to the Old World swallowtail (Papilio machaon). On both surfaces of the hindwing, the pupil in the eyespot usually touches the edge of the inner margin. On the underside of the hindwing, the orange spots have very little or no yellow in them.

This butterfly is endemic to the Ozark Mountains in the United States. It is uncommon to rare in this region.

The Ozark swallowtail is seen from April to September.

P. joanae is found in cedar glades and woodland habitats.

The caterpillar is morphologically very similar to the black swallowtail caterpillar. The two species may be more easily distinguished by the habitat and host plants upon which the caterpillar feeds, as these differ. There are two broods per year.

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Wikipedia