Sawtoothed Grain Beetle

Natural Habitat

The sawtoothed grain beetle is a common pest of stored food products, often found in pantries, kitchens, and warehouses. It can infest a wide range of dry goods.

Diet & Feeding

It feeds on a variety of stored dry food products, including grains (e.g., flour, cereals, rice, pasta), dried fruits, nuts, chocolate, and pet food. It cannot feed on whole, undamaged grains.

Behavior Patterns

These beetles are highly mobile and can quickly infest new food sources. They are typically found within the food products they infest. Females lay eggs directly into or near food. The larvae feed within the food and pupate there. Adults have a relatively long lifespan. They are attracted to food odors.

Risks & Benefits

Potential risks include contamination and spoilage of stored food products, leading to economic losses and potential health concerns if infested food is consumed. They do not bite or transmit diseases to humans. There are no known benefits to humans from this insect; it is primarily a pest.

Identified on: 10/24/2025