Contact Blog Project Noah Facebook Project Noah Twitter

A global citizen science platform
to discover, share and identify wildlife

Join Project Noah!

Giant Swallowtail

Papilio cresphontes


The mature caterpillar resembles bird droppings to deter predators, and if that doesn't work they use their red osmeterium. These are 'horns' which they can display and then retract. The coloration is dingy brown and or olive with white patches and small patches of purple. Citrus fruit farmers often call the caterpillars orange dogs or orange puppies because of the devastation they can cause on their crops.

Species ID Suggestions

Sign in to suggest organism ID


Toucan 7 years ago

Amazing larvae indeed, Mayra!

MayraSpringmann 7 years ago


Toucan 7 years ago

Thanks for the ID, Env! And thank you, Sergio, Dane, and S. Frazier for changing the category!

DaneCole 7 years ago

Ahhh, what a wierd-looking face, but kinda beautiful the same time.

Scott Frazier
Scott Frazier 7 years ago

Moved to Arthropods :-)

Sergio Monteiro
Sergio Monteiro 7 years ago

They surely are, Toucan.

Toucan 7 years ago

Does anyone know if these are Swallowtail's larvae??

Spotted by

San José, Costa Rica

Spotted on Jan 16, 2013
Submitted on Jan 16, 2013

Related Spottings

Papilio machaon The Common Mormon ♂ Paris Peacock Papilio cresphontes

Nearby Spottings

Spotting Spotting Spotting Spotting