Southern Flannel Moth Caterpillar on a small branch - 0092
Southern Flannel Moth Caterpillar on a small branch. The Southern Flannel Moth is a small moth that is best-known because of its larva, the puss catepillar, which is one of the most venomous catepillars in the United States. The name "puss caterpillar" is likely in reference to the caterpillar's resemblance to a cat with its soft fur and tail. If stung by one of these you have to get to the hospital quickly. While the normal normal reactions are pain, fever, nausea, vomiting, low blood pressure and seizures, in rare cases you can have severe abdominal pain, muscle spasms and convulsions. Never, ever reach out to touch one.