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Black Swallowtail

Papilio polyxenes


White caterpillar with black bands, each band having six yellow dots embedded in it. Swallowtail caterpillars have the unique habit of being able to every a pair of fleshy "horns" (osmetaria) from behind the head when disturbed. These glands also secrete odors that may be distasteful to potential predators.


Parsley plant.

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Spotted by

Denton, Texas, USA

Spotted on Jun 29, 2012
Submitted on Jul 12, 2012

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