Despite its innocently furry appearance, the puss caterpillar's sting is brutal

The puss caterpillar has venomous barbs along its hairy body. A sting from the insect causes extreme pain and can result in blisters that can last for weeks. (North Carolina Division of Parks and Recreation)

The puss caterpillar bears a striking resemblance to Cousin Itt from the Addams Family, a fuzzy little bug that one can’t help but want to touch. However, beneath its hairy surface are poisonous barbs that pack a powerful sting, which can result in days and even weeks of pain.

One of the most venomous caterpillars in the U.S., the puss can be found feasting on foliage in states between New Jersey and Florida and as far west as Texas. Most encounters typically occur when the caterpillar accidentally falls out of a tree or when people are removing leaves from around their home.

A puss caterpillar stung the manager of Virginia Tech’s Insect ID Lab, Eric Day, when he accidentally brushed up against a tree while mowing his lawn in rural Virginia. He said it resulted in a burning sensation and a blister about an inch long at the sting site.