Will post a picture later. Overnight some small dark caterpillars have eaten my morning glory vine. They seem to only want that but I've never seen such overnight damage. Maybe tent caterpillars, but they seem smaller.
Hi! The link I gave you should bring a list of all the Butterflies and Moths that have been recorded in your county. When you click on a name, it should take you to a detail description that usually includes a picture. If you are lucky, there will be a picture of the caterpillar, too.
However, I went through some of the likely culprits in your area, and it didn't bring up any caterpillar pictures. Sorry.
I did a Google image search, and the closest I found was "yellow-striped army worm"