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Desert Recluse Spider
Desert recluse spider (Lynette, Flickr.com)
Recluse spider egg sac (Jeffrey Tucker, Bugguide.net)
Brown recluse spider (similar in appearance to desert recluse); note fiddle-shaped marking (Mark Dreiling, Bugguide.net)
- in Utah, only found in Washington County
- 1/4 - 1/2 inch long
- tan to dark brown with darker fiddle-shaped marking on top
- six eyes arranged in three groups of two
- spin irregularly-shaped webs in undisturbed areas
- found outdoors in native vegetation, pack rat dens, etc.
- seldom found indoors
- feed on small live insects and occasionally large dead ones
- bites can result in a necrotic ulcer that can take several weeks to heal
- these spiders are rarely encountered indoors
- Call a physician or go to an emergency room immediately after being bitten or when symptoms develop. Bring the spider if possible for identification
- Reduce other insects that serve as food.
- Prune vegetation around buildings to limit habitat.
IPM for Spiders: Integrated Pest Management in Sensitive Environments (University of Nebraska-Lincoln Extension)