Brown Recluse Spider

Loxosceles reclusa

Spiders

Light to dark brown spider with violin-shaped marking on cephalothorax. Six eyes in three pairs. About 1/4 to 1/2 inch body. Venomous bite can cause necrotic lesions. Shy and non-aggressive. Found in south-central US.

Brown Recluse Spider (Loxosceles reclusa) - Professional pest control identification guide

Control Methods

Recommended methods for controlling this pest

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MethodTypeEffectivenessRequirements
Clutter ReductionCultural
None

Common Harborage Locations

Where to find this pest during inspections

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LocationWhy Found TherePriority
Basements
High humidity, cooler temperatures, stored items, potential for flooding, entry point from outside.
Critical
Crawl Spaces
Direct earth contact, very high humidity, minimal disturbance, abundant hiding spots, poor ventilation.
Critical
Storage Boxes & Clutter
Undisturbed environment, material for nesting, harborage between items, food source (cardboard/paper).
Medium
Important Disclaimer: The information provided in this knowledge base is for educational and reference purposes only. Pest management professionals should always consult current product labels, Safety Data Sheets (SDS), manufacturer instructions, and applicable local, state, and federal regulations as the definitive source of truth. Product formulations, application methods, safety requirements, and regulations may change over time. This information may be out of date and should not replace professional judgment, proper training, or required licensing and certifications.