Green Nature

Puss Caterpillar - A Dangerous Stinging Caterpillar

picture of a puss caterpillar Megalopyge opercularis)

Warm and fuzzy would not be the proper phrase for describing the Puss Caterpillar (Megalopyge opercularis), also known as an Asp.

This larvae of the flanel moth feed on leaves from a variety of broadleaf trees and shrubs in the Southeast United States, especially during the late summer and fall.

Body contact with the caterpillar results in a sting, producing a severe pain that can easily extend beyond a one hour time frame. There are some medical reports of patients also experiencing shortness of breath, nausea and other symptoms requiring medical attention.

While the caterpillars mostly stay on leaves, they can also be found wandering on the ground and, as the picture shows, on picnic tables.

Wearing long sleeved shirts and pants, along with shoes and socks, is a good preventative strategy for individuals who wander around their territory.

The link in the box to Hemileuca points to another group of stinging caterpillars.

© 2008. Patricia A. Michaels.