Last week I bought 50 mealworms from the petshop & am rearing them in an icecream tub. They eat bran & fruit - there is a worm on the apple slice below, the other dark lump is a piece of guava.
These "worms" are in fact beetle larvae. In a few weeks they will pupate, then turn into beetles, which will in turn lay eggs. Mealworms are eaten in many countries, & are very nutritious.
I will try them fried in butter & garlic, & roasted & salted with beer - see my new website
www.pavlovasdog.weebly.com for more on edible insects.