Hummingbird and Butterfly Gardening: Pipevine swallowtail question, 0 by Calalily

Calalily wrote:
I have these cats on my pipevines, both on A. elegans and A. gigantea. From everything I've read, they should not be eating my A. elegans and still be alive, but they have eaten it to the stems, lol and are fat cats! I know TX has more pipevine swallowtail subspecies but I don't know what these are exactly. Does anyone know what these are and if they keep eating my "bad" varieties of Aristolochia, will they die?