This great video was shot by my friend Sam Jaffe, expert caterpillar wrangler. He is spending his summer bringing caterpillars to farmers’ markets and science museums as entomology outreach for children. He specializes in the big ones, like this Hyalophora cecropia caterpillar. He managed to catch it as it was molting into the next instar:

He’s also an indefatigable moth hunter and finder-of-caterpillars-on-the-undersides-of-leaves. If you are in the northeast and want to see one of his shows, check out his facebook page: The Caterpillar Lab.