Subject: Pipevine Swallowtail
Location: Tucson AZ
September 9, 2015 8:48 pm
Your excellent site helped me easily identify this caterpillar, but you did not seem to have a photo of a Pipevine Swallowtail on it’s preferred vegetation, which of course is Pipevine! Scientific Name: Aristolochia watsonii English Name: Southwestern pipevine, snakeroot, birthwort, Indian root
Perhaps you will find my photo useful. Use it at will.
Thanks so much for sending us your image of a Pipevine Swallowtail Caterpillar, and also for providing the information on the food plant. We love that the osmeterium, a fleshy forked organ on swallowtail caterpillars that releases what some have likened to a foul odor, is visible in your image.