I have keep an eye out for them. For some reason, I haven’t even seen a wooly bear this year. I hope it’s a mild winter here, too. That would be welcome.
Just kidding - the solid black ones, and they're obviously BIGGER than the Woolly Bears, are the larvae of the Leopard Moth - which is a real stunner, but rarely seen as they're only out at night.
I've seen exactly ONE, in larvae form, in my entire life. Nothing in Nature eats them - or the Woolly Bears - so they can both live dozens of years before pupating. They've even found them on the tundras of Canada, just hanging out. Tough little buggers!