| Battus philenor (Linnaeus, 1771) |
| Status: Uncommon stray. |
| Flight Period(s): At least three flights have been recorded in southern and eastern portions of the United States where it is a resident and flies from spring to fall. There it is reported to be most common in the spring. In Nebraska there are records from 13 May – 5 October. |
| Range: This is an overwintering resident in southeastern and southwestern United States, with strays ranging north to New York, Wisconsin, Nebraska and Utah. In Nebraska this species has been recorded from the southern half of the state. |
| Larval Hostplant(s): Pipe Vines – (Aristolochia species). These plants do not normally survive winters this far north on a consistant basis, but with care some are nurtured as ornamentals. |
| Overwinter: As pupae, although they cannot survive Nebraska winters. |
| Commentary/Habitat: As a stray it can be expected in almost any habitat, although most often at flowers. Its numbers vary greatly from year to year, with the species often being absent from the state for years at a time. Both the butterfly and the larvae are distasteful to predators as a result of their feeding on Aristilochia species. Several other species mimic it to avoid predation. |
| Similar Species: Black Swallowtail, Red Spotted Purple, dark form female Tiger Swallowtail. |
