Saw-toothed Grain Beetle

Scientific Name: Oryzaephilus surinamensis

Order & Family: Order: Coleoptera, Family: Silvanidae

Size: 2.5 to 3 mm in length

Saw-toothed Grain Beetle

Natural Habitat

Domestic and commercial food storage areas, mills, and warehouses

Diet & Feeding

Stored dry goods including cereal, flour, pasta, dried fruit, nuts, and chocolate

Behavior Patterns

Long-lived beetles that do not fly; they crawl quickly and frequently infest pantries through small cracks in packaging. They can live up to three years.

Risks & Benefits

They are a major nuisance pest that can cause food spoilage and economic loss, but they are physically harmless to humans and do not bite or sting.

Identified on: 6/20/2026