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Pest Profiles > Spiders > Brown Recluse

BROWN RECLUSE SPIDER (Loxosceles reclusa)

Biology

  • Color varies from yellowish to light tan to dark brown.
  • A dark brown violin marking can be found on the cephalothorax.
  • Six eyes are situated in 3 groups of 2 in a semicircle pattern
  • Body length can range from ¼ to ½ inch long with long thin legs each with two tarsal claws.

Distribution/Habits

  • Natural infestations occur in outdoor situations where spiders live in piles of debris.
  • They have adapted well to indoor habitats and are commonly found in storage areas, crawl spaces and other dark recesses.
  • They seem to prefer layered situations like stacks of clutter.
  • They are nocturnal spiders that feed on soft-bodied insect species.
  • Females retreat to an irregularly spun off-white web in undisturbed areas. These webs are not designed to entangle prey.
  • Bites occur when the spider is hiding and accidentally becomes trapped against the skin. The venom associated with the bite causes great discomfort to humans.