Lesser Mealworm (Darkling Beetle)

Natural Habitat

Damp environments, poultry houses, grain storage facilities, and sometimes homes near food sources.

Diet & Feeding

Scavengers that feed on spilled grain, decaying animal and plant matter, and poultry droppings.

Behavior Patterns

Nighttime activity; they go through a complete metamorphosis (egg, larva, pupa, adult) and thrive in warm, humid conditions.

Risks & Benefits

Considered a significant pest in the poultry industry as they can carry diseases like Salmonella; in homes, they are a nuisance and can contaminate stored pantry goods.

Identified on: 2/20/2026