Question: is a hairy caterpillar poisonous?
Answer: Also called the puss caterpillar, asp, woolly slug, or “possum bug”, this caterpillar has venomous spines hidden in the hairs (setae) on its body. When picked up, these spines deliver a powerful and painful sting. The venom can cause searing, throbbing pain, burning and sometimes a rash with red spots.