Papilio-thoas-group
Guides
Papilio ornythion
ornythion swallowtail
Papilio ornythion is a swallowtail butterfly in the subfamily Papilioninae, native to Mexico and Guatemala with occasional vagrancy into the southern United States. The species exhibits sexual dimorphism with two female forms—one matching the male and a distinctive dark form. Adults fly from April to September with two generations per year. Larvae feed on Citrus leaves while adults nectar on flowers.