About this Caterpillar:Nason's slugs don't sport the biggest spines in the stinging caterpillar world, but it can still pack a mild punch. These small spines retract, but if the Nason's slug feels threatened, it can quickly extend the poisonous barbs. If you look at the caterpillar head-on, you'll notice its body is a trapezoidal shape (not obvious in this photo).
Where It's Found:Forests from Florida to Mississippi, north to Missouri and New York.
What It Eats:Hornbeam, oak, chestnut, beech, hickory, and some other trees.
Group:Slug Caterpillars (Family Limacodidae)