Dear Lepidopterists,

I looked at every image on the BugGuide and didn't see this caterpillar. I'm certain there are some of you that can identify it at a glance. Please do. It has fleshy pink feet that cling very well, and white markingings on its underside. This specimen was on a concrete slab in a pine forest. I scooped it up without touching it because I suspected it had toxic spines. My suspicion was confirmed when I accidently dropped it onto the back of my hand while releasing it. Its spines punctured my skin and caused mild stinging welts at the penetration sites. Please identify, won't you?