Two-Tailed Swallowtail Caterpillar

Subject: id this catepiller
Location: central AZ
October 13, 2016 10:28 am
found on an ash tree in central AZ at 5200′
Any ideas?
Signature: ??with love??

Two-Tailed Swallowtail Caterpillar
Two-Tailed Swallowtail Caterpillar

This is one of the Tiger Swallowtail Caterpillars, and there are several different species with similar looking caterpillars found in Arizona.  Since you were able to provide the food plant, the ash tree, we have determined that this is a Two-Tailed Swallowtail Caterpillar, Papilio multicaudata, and we verified the food plant on Butterflies and Moths of North America.

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