Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Giant Swallowtail
Papilio cresphontes Cramer, 1777


Family: Papilionidae
Subfamily: Papilioninae
Identification: Forewing with diagonal band of yellow spots. Tails are edged with black and filled with yellow.
Wing Span: 4 - 6 1/4 inches (10.2 - 16 cm).
Life History: Males patrol for receptive females. Females lay single eggs on host leaves and twigs. Caterpillars resemble bird droppings and eat leaves and young shoots. Chrysalids hibernate.
Flight: Two in the north from May-September; all year in Florida and the Deep South.
Caterpillar Hosts: Trees and herbs of the citrus family (Rutaceae) including Citrus species, prickly ash (Zanthoxylum americanum), hop tree (Ptelea trifoliata), and Common Rue (Ruta graveolens).
Adult Food: Nectar from lantana, azalea, bougainvilla, bouncing Bet, dame's rocket, goldenrod, Japanese honeysuckle, and swamp milkweed.
Habitat: Many locales including rocky and sandy hillsides near streams or gullies in the north; pine flats, towns, and citrus groves in the south.
Range: Throughout eastern North America west to the Rocky Mountains, south through the desert Southwest to South America. A rare stray to Quebec, North Dakota, and Bermuda.
Conservation: Not required in the United States.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: Caterpillars ("orange dogs") are occasional pests of citrus.
Get your BAMONA Gear!

Hoodies and t-shirts in two designs!


Advertise with us!

Do you have a product or service that you think would interest BAMONA users? If you would like to advertise on this website, contact us by email, or use the contact form and select the "Advertising" category.