Drugstore beetle

Scientific Name: Stegobium paniceum

Order & Family: Coleoptera: Ptinidae

Size: 2.25 mm to 3.5 mm

Drugstore beetle

Natural Habitat

Indoor environments, Pantries, warehouses, and libraries

Diet & Feeding

Omnivorous scavengers; feeds on flour, bread, spices, dried herbs, books, and leather

Behavior Patterns

Attracted to light; females lay up to 75 eggs in food sources; larvae consume food and create tunnels

Risks & Benefits

Contaminates household food supplies and can cause significant damage to historical documents and book bindings; generally harmless to humans directly

Identified on: 5/21/2026