Bug Identifier
Confused Flour Beetle
Community identification

Confused Flour Beetle

Tribolium confusum

Order & Family
Order: Coleoptera, Family: Tenebrionidae
Size
Approximately 3.0 - 5.5 mm (0.12 - 0.22 inches) in length
See this bug in the Encyclopedia

Natural Habitat

The confused flour beetle is typically found in pantries, food processing plants, warehouses, and grocery stores where dried food products are stored. They thrive in warm, humid environments.

Diet & Feeding

They primarily feed on milled grain products such as flour, cornmeal, cereal, and pet food. They can also infest dried fruit, nuts, chocolate, and various other dried foodstuffs. They prefer damaged or already processed grains.

Behavior Patterns

The confused flour beetle is a common pest of stored products. They are nocturnal and are attracted to light. Females lay eggs directly among the food source, and the larval and pupal stages also occur within the food. They can live for over a year under optimal conditions. When disturbed, they often 'play dead'.

Risks & Benefits

Risks: Considered a significant pantry and stored product pest. Their presence can contaminate food with their bodies, fecal matter, and secretions that can impart a disagreeable odor and taste to infested products, making them unfit for consumption. They do not bite or sting humans and are not known to transmit diseases. Benefits: None significant for humans; in natural ecosystems, they act as decomposers but are primarily associated with human-stored food.