Mealworms (Tenebrio molitor)
Mealworms are the larval stage of a darkling beetle. They are small, smooth, and yellowish-brown with segmented bodies. Commonly used as feed for birds, reptiles, and small mammals, they are rich in protein and easy to culture. Mealworms thrive in dry substrates like bran and feed on grains, fruits, and vegetables. Their life cycle includes egg, larva (mealworm), pupa, and adult beetle stages.

Morio Worms (Zophobas morio)
Morio worms, also known as superworms, are larger and darker than mealworms and are the larvae of a tropical darkling beetle. They have a tougher exoskeleton and are highly active, making them appealing as live feed for reptiles, amphibians, and birds. Morio worms require warmer conditions and a varied diet of grains and fresh produce. Unlike mealworms, they need to be isolated to pupate into adult beetles.