Superworms are an excellent part of a varied diet for many reptiles and amphibians and are probably one of the most commonly used prey item next to crickets.  You can purchase superworms from your local pet store or even bait shop, order them online or even raise your own colony.  They are much larger and definitely more active than your standard mealworms (Tenebrio molitor).  The body of a superworm is less chitinous than that of a mealworm, thereby making them softer and easier to digest.

They are scientifically known as Zoophobas mario and are the larval stage of this particular beetle.   As with several other worm species, superworms have four life stages:

1. Egg (about 1/20th of an inch in size)
2. Larva (this is the worm used as your food source)
3. Pupa (looks like an alien out of a science-fiction movie)
4. Beetles (these are what breed and lay the eggs)

Superworms will reach a maximum length of approximately 2.5 to 3 inches.