Bug Identifier
Red Flour Beetle or Confused Flour Beetle
Community identification

Red Flour Beetle or Confused Flour Beetle

Tribolium castaneum (Red Flour Beetle) or Tribolium confusum (Confused Flour Beetle) - differentiation is difficult from an image alone.

Order & Family
Order: Coleoptera, Family: Tenebrionidae
Size
2.5 - 4.5 mm (approximately 1/8 to 1/4 inch)
See this bug in the Encyclopedia

Natural Habitat

Commonly found in pantries, food processing plants, warehouses, and grocery stores where stored dry food products are present. They prefer dark, undisturbed areas.

Diet & Feeding

Primarily feed on stored dry food products, especially milled grain products (e.g., flour, meal), but also dried fruits, nuts, chocolate, spices, and pet food.

Behavior Patterns

Flour beetles are highly active, especially at warmer temperatures. They are known to infest stored products like flour, cereal, and pet food. Females lay eggs directly into food sources, and larvae develop within these products. They can live for up to a year or more.

Risks & Benefits

Potential Risks: Significant pests of stored products, causing economic losses due to contamination of food items with their bodies, feces, and secretions. They can impart an unpleasant taste and odor to infested food. Considered a nuisance pest in homes. Potential Benefits: None significant to humans, but they are part of the broader ecosystem as decomposers in natural settings.