Pupae will wiggle, it's more of a spasm, if disturbed.Very interesting reading and appreciated! I startd a small mealworm operation last week, and so far, so good. One thing has me wondering, though: do the pupae move? I've seen one or two wiggle, but most look lifeless. The worms themselves are very lively and doing well. I am using chicken scratch for their food, but I think I will switch to bran or oatmeal. Thanks for your help!