
Community identification
Sawtoothed Grain Beetle
Oryzaephilus surinamensis
- Order & Family
- Coleoptera: Silvanidae
- Size
- 2.5 mm to 3 mm in length
Natural Habitat
Found globally in pantries, kitchens, food storage facilities, and grocery stores where grains are kept.
Diet & Feeding
Stored dried food products including flour, cereals, bread, pasta, dried fruit, nuts, and spices.
Behavior Patterns
They are highly mobile, flat-bodied insects that can crawl into tiny cracks in food packaging. They do not fly. Female beetles can lay up to 400 eggs in food sources over their lifetime.
Risks & Benefits
They are a common household pest that causes food spoilage and economic loss. They do not bite or sting humans and are not known to spread diseases, but infested food must be discarded.