This caterpillar is truly impressive. Known as the Hickory Horned Devil, it is the largest caterpillar in the US. It can grow to over 5″, and has quite an awesome appearance. Its moth is the lovely Regal Moth, or Royal Walnut Moth, Ctheronia regalis. It is the largest moth (by mass) north of Mexico, growing up to 6″ across. I have a separate painting of it here.
