Spider Beetle

Natural Habitat

They are commonly found in human dwellings, food storage facilities, museums, and warehouses. They prefer dark, damp, and undisturbed places such as cracks and crevices, behind walls, or in pantries.

Diet & Feeding

Spider beetles are generalist scavengers feeding on a wide variety of dried organic materials including grains, seeds, dried fruits, flour, cereals, pet food, and even natural fibers like wool and silk.

Behavior Patterns

Spider beetles are known for their ability to chew through various packaging materials to access food sources. They are often found in dark, undisturbed areas. The larvae are C-shaped and yellowish-white.

Risks & Benefits

Potential risks include contamination and damage to food products and other organic materials (e.g., historical artifacts, stored dry goods). They are not known to bite or transmit diseases to humans. Benefits are limited, though they can be part of the detritivore community in natural settings.

Identified on: 8/27/2025