Mealworms are the larval form of the mealworm beetle, Tenebrio molitor, a species of darkling beetle, and a part of the Hexapoda Subphylum. Like all holometabolic insects, they go through four life stages: egg, larva, pupa, and adult. Larvae typically measure about 2.5 cm or more, whereas adults are generally between 1.25 and 1.8 cm in length.

Read full article on Wikipedia · CC-BY-SA