Bug Identifier
Smooth Spider Beetle
Community identification

Smooth Spider Beetle

Gibbium aequinoctiale

Order & Family
Order: Coleoptera, Family: Ptinidae
Size
1.5 to 3.5 mm in length
See this bug in the Encyclopedia

Natural Habitat

Typically found in pantries, warehouses, museums, and attic spaces where they scavenge in dark, damp crevices.

Diet & Feeding

Scavenger of organic matter including dried food products, seeds, grain, dried plant material, wool, silk, and animal droppings.

Behavior Patterns

Active at night (nocturnal); they are slow-moving and often mistaken for spiders due to their globular bodies and long legs. They cannot fly.

Risks & Benefits

Generally considered a nuisance pest rather than a health threat. They do not bite or sting, but they can contaminate stored food products and damage museum collections.