Woolly bears "feed on almost any type of foliage, but only for a brief time before spinning a cocoon and emerging a few weeks later as a mature moth." I've found a few woolly bears over the years but only spotted the moth once. I'd let the woolly bear go.

Thanks for all the good suggestions! Actually, I have nearly all the things you mentioned (or native alternatives), and more. At one point, looking through the plant index in the Audubon Guide to Butterflies I counted 80 species of butterfly host plants that I have here on my 20 acres. I'm restoring natives back to old farmland, so most of those are species I intentionally planted. Plenty others have just volunteered. This is my first year of planting paw paw and I got Zebra swallowtail cats with the plants but haven't had any since they grew up. I have some amazing Banded Sphinx moth caterpillars on my Ludwigia octovalvis (primrose willow) right now. In addition to the cats on my previous post, I also have Little Sulfurs on my sensitive plant, Giant Leopard Moth cats on Coral Honeysuckle, and probably some eggs of newly arriving Monarchs, but I haven't found the Monarch eggs yet. This has been a great year. What do you have, and where are you? I am just starting to see some Variegated Fritillaries, but haven't found the cats yet, lately. Biophilia, Elberta, Alabama

Yes, it is a great leopard moth (Hypercombe scribonia). The red bands show when curled up and advertise that it is full of PAs (pyrrolizidine alkaloids), a toxic substance. Your guy is probably getting ready to pupate. Typically they overwinter, so I don't know if yours is just hanging out or what. It may be a first brood, with a second overwintering. I find them hard to raise, as they pupate in the leaf litter, but someone else on the board my have some advice. Good luck, Elisabeth

I was out watering my garden when I saw a 'woolly bear' all curled up, with water on it. I kept the spray off of it, but it still wouldn't unwind and let me see its whole body. Still, you can see the diagnostic horizontal red bands around its body, IDing it as a giant leopard moth caterpillar - Sherry