I have never seen this before
Location: Dixon Missouri, USA
August 14, 2010 5:05 pm
this insect stung my son when he swept it off his arm after trying to shake it off and it sticking to him. its very small about the size of a pea. at the biggest.
This is one of the Stinging Slug Caterpillars in the family Limacodidae. We quickly identified it as Nason’s Slug, Natada nasoni, by searching BugGuide.