Mealworm

Scientific Name: Tenebrio molitor

Order & Family: Order: Coleoptera; Family: Tenebrionidae

Size: Larvae grow to approximately 2.5 cm (1 inch) in length.

Mealworm

Natural Habitat

Typically found in damp, dark environments with access to decomposing organic matter such as grain, flour, or animal feed.

Diet & Feeding

Omnivorous; feeds primarily on grains, decaying vegetation, and occasionally animal protein.

Behavior Patterns

Larvae are active burrowers and spend most of their time feeding until they pupate into darkling beetles. They undergo complete metamorphosis.

Risks & Benefits

Benefits: Widely used as a high-protein food source for pets and reptiles, and emerging as a sustainable human food source. Risks: Can be a minor pest of stored grain products and may cause allergic reactions in humans sensitive to chitin.

Identified on: 3/12/2026