Type of pest: Secondary pest, scavenger
Distribution: Worldwide, especially in temperate regions, tolerant to cold conditions.
Identification: Adults are 2.5 mm long, have long legs and are globular. The spider beetle looks, superficially, something like a spider. Some species are hairy, others totally or partly shiny. Antennae are long and hair-like. Larvae: scarabaeiform, with legs fully developed.
Similar species: none
Life cycle: Optimal conditions are 61 days at 27 ºC. On average the development from egg to beetle takes 3.5 to 4.5 months. Eggs are laid in crevices in the commodity. Larvae are internal feeders, immobile when mature. Adults are long-lived, feed on the commodity and some species can fly.
Commodities infested: They are omnivores, eating both plant and animal material. The larvae of the Spider beetle can feed on wool, hair, textiles and old wood. They often cause damage to stored materials of an organic nature where they bore holes.
Good hygiene is important for prevention.
Treatment: Controlled Atmosphere for infestation in the product
Treatment: Heat Treatment for infestation in building