I’m not sure what this is. I purchased some silk worms for my reptiles, and I never used this can of silk worms. A few months later, I accidentally grab the can mistaking it for something else and open it, then find this! I was way to nervous and scared to touch it, but I would say the length is probably 3-4 inches long. It’s yellow and green, and on the tips of some of them, there are little follicles. There was also normal white mold on the actual worms themselves. I really don’t know what this is, so if you do, please help me or let me know!