Yellow Sac Spider

Cheiracanthium inclusum

Spiders

Pale yellow to beige spider, about 1/4 inch body. Builds silk sac retreat in corners or ceiling. Nocturnal hunter. Mildly venomous bite can cause pain and swelling. Often found indoors on walls and ceilings.

Yellow Sac Spider (Cheiracanthium inclusum) - Professional pest control identification guide

Control Methods

Recommended methods for controlling this pest

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MethodTypeEffectivenessRequirements
Crack and Crevice AerosolChemical
Required

Common Harborage Locations

Where to find this pest during inspections

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LocationWhy Found TherePriority
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 This information may be out of date and should not replace professional judgment, proper training, or required licensing and certifications.