From what I know, ( which is very little ) they do not eat, the moth worm eats for the moth! Just feed them to the mantis, that is what i do, I have them in their container and every day about a dozen hatch, not all get one, but some lucky mantis! does!
Hi, I was thinking about raising some waxworms/moths myself awhile back and found this link. I havent actually got around to it though so cant say much from personal experience. To many projects, to little time lol. I hope it helps and goodluck!