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King Swallowtail

Papilio thoas


The King Swallowtail or Thoas Swallowtail (Papilio thoas) is a butterfly of the family Papilionidae. The wingspan is 100–130 mm. In the tropics the butterfly flies year-round, in North America from April to July depending on the location, and In South America in spring and summer months. The larvae feed on plants of the citrus family, Rutaceae. The adults feed on nectar of Lantana, Caesalpinia, and Bougainvillea among other species.


It is found in the United States and Mexico ranging to the southernmost parts of South America. It is easily confused with the Giant Swallowtail.

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Lari Pekurar
Spotted by
Lari Pekurar

Phoenix, Arizona, USA

Spotted on Sep 26, 2019
Submitted on Sep 26, 2019

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