![What You Need to Know About the Southern Flannel Moth Caterpillar, the Country's Most Poisonous Caterpillar What You Need to Know About the Southern Flannel Moth Caterpillar, the Country's Most Poisonous Caterpillar](https://www.southernliving.com/thmb/V5SvN3Mp-V8jA4cEUTLqoYFBbFI=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc()/gettyimages-128599804-2000-e05d13a4add142f0aa4a0c949903491f.jpg)
What You Need to Know About the Southern Flannel Moth Caterpillar, the Country's Most Poisonous Caterpillar
EENY-545/IN976: Puss Caterpillar (Larva), Southern Flannel Moth (Adult), Megalopyge opercularis (J. E. Smith 1797) (Insecta: Lepidoptera: Zygaenoidea: Megalopygidae)
![What You Need to Know About the Southern Flannel Moth Caterpillar, the Country's Most Poisonous Caterpillar What You Need to Know About the Southern Flannel Moth Caterpillar, the Country's Most Poisonous Caterpillar](https://cf-images.us-east-1.prod.boltdns.net/v1/static/474428695/51cbb5a8-a97e-43be-9c1c-7295b2f5befc/1d351361-430a-4861-a406-fc8a26ad7be6/1280x720/match/image.jpg)
What You Need to Know About the Southern Flannel Moth Caterpillar, the Country's Most Poisonous Caterpillar
![Southern Flannel Moth Megalopyge opercularis (J. E. Smith, 1797) | Butterflies and Moths of North America Southern Flannel Moth Megalopyge opercularis (J. E. Smith, 1797) | Butterflies and Moths of North America](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/gaitan_yard_southern_flannel_moth_megalopyge_opercularis_caterpillar_1b.jpg?itok=ye4b8vrq)