Merchant Grain Beetle

Natural Habitat

Commonly found in residential kitchens, pantries, and food warehouses, typically within stored cereal products or oils.

Diet & Feeding

Feeds on processed grains, oatmeal, flour, breakfast cereals, dried fruits, and high-oil content foods like seeds and nuts.

Behavior Patterns

Fast-moving, flattened beetles that can squeeze into tiny cracks in packaging. They do not fly often but are prolific breeders in stable indoor environments.

Risks & Benefits

Generally harmless to humans and pets as they do not bite or sting. However, they are significant domestic pests that cause food spoilage and contamination, leading to economic loss.

Identified on: 4/21/2026