
Community identification
Grain Beetle (likely Sawtoothed or Merchant)
Oryzaephilus surinamensis or Oryzaephilus mercator
- Order & Family
- Order Coleoptera, Family Silvanidae
- Size
- 2.5 mm to 3 mm in length
Natural Habitat
Pantropical and temperate regions; found in pantries, kitchens, food storage facilities, and warehouses.
Diet & Feeding
Stored cereal products, flour, bread, pasta, nuts, dried fruits, and sugar.
Behavior Patterns
They are flattened insects that can crawl into tiny crevices of food packaging. They do not fly but move quickly. Females lay eggs directly into food sources.
Risks & Benefits
They are nuisance pests that contaminate food with larvae and waste. They do not bite or sting humans and carry no known diseases, but infested food must be discarded.