Tiffany, thanks for asking people to ID their caterpillars and consider NOT killing them.
I have some "sacrifice" plants that I relocate caterpillars to if they are on something I can't bear to see chewed on.
My passion flower vine is covered in Gulf Fritillary caterpillars, and they are devouring it. But it comes back even stronger after they leave. Same with the milkweed and the monarch caterpillars.
There may be some symbiotic thing going on there, possibly!