what is an asp bug
Puss Moth Caterpillar (Asp) Stings. NOTE: This is the Professional Version. Puss moth caterpillars (Megalopyge opercularis), of the order Lepidoptera, are also known as asps. They are one of the most toxic caterpillars in North America. Puss moth caterpillars are endemic to the southern US and live in shade trees and shrubbery around homes and schools and in parks. The asp caterpillar produces 2 generations a year, leading to a bimodal peak in late spring and late fall.