Help identifying caterpillar

Cibolo, TX

This caterpillar is on a rue plant. Is it a black swallowtail?

Cibolo, TX

Here is the picture.

Thumbnail by jdavis7123
Churchill, Victoria, Australia(Zone 10a)


This forum is for questions relating to adding data to the BugFiles database.

We have a forum on Insect and Spider Identification here:
and if you post your question there, you may get some help,

If you have an image, you could attach it to the message you post for a better chance of getting an identification

BugFiles Administrator

Having said all that, I can confirm that yours is the caterpillar of the Black Swallowtail - Papilio polyxenes:

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