This thread-like worm is about 6 inches long. There were a ton of them out in my garden yesterday after it rained. They were crawling up into high places and waving about in the wind. Does anyone know what they are? Are they safe for my garden? I tried googling, but kept getting info on parasitic threadworms, and I'm pretty sure this is not the same. Edit: I'm in Massachusetts, zone 6a, if that helps.