Mealworms are the larval form of the mealworm beetle, Tenebrio molitor, a species of darkling beetle.
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.
The mealworm beetle breeds prolifically.
Mating is a three-step process: the male chasing the female, mounting her and inserting his aedeagus, and injecting a sperm packet.
Within a few days the female burrows into soft ground and lays about 500 eggs. (source)
So can chinchillas eat mealworms?
Unfortunately they can’t at all and should be avoided as a food for chinchillas to eat.
For more foods that chinchillas can and can’t eat, check out our chinchilla food list.