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Photo#21885
Black Swallowtail - Papilio polyxenes

Black Swallowtail - Papilio polyxenes
Geneseo, Henry County, Illinois, USA
June 24, 2005
I found this beautiful caterpillar today and when I touched it, its osmeteria came flying out in defense along with a little "juice" from its head. This concoction supposedly smells and tastes pretty horrible to deter predators. This caterpillar was identified using this guide.

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Moved from Black Swallowtail.

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