Brown recluse spiders

Brown recluse prevention starts with reducing clutter, sealing access and avoiding direct contact. Confirm a suspected spider with expert identification; neither a dark marking nor a skin lesion is enough to diagnose a recluse bite.

Know the suspect

Brown recluses are tan to gray with slender legs, usually spanning an area about the size of a quarter to a half-dollar. Adults often have a violin-shaped mark on the front body region and six eyes in pairs. A violin-like mark alone is not conclusive. In DFW homes, inspect undisturbed closets, boxes, garages and attics from a safe distance. Stored goods, cracks and protected voids provide access or shelter. Texas A&M recluse identification Extension spider identification guide

The wanted portrait is a stylized AI illustration, not an identification photograph. Compare the actual animal and its markings with an Extension identification guide.

What they can do

These spiders are shy and usually bite when pressed against the skin. A bite may cause serious tissue damage, but other conditions can resemble a spider-bite lesion. Do not diagnose a wound from appearance or assume a brown spider was responsible. Most spiders are beneficial insect predators. Extension bite and identification cautions

Start with control, not a spray

1. Reduce undisturbed cardboard and clutter without reaching blindly into it.
2. Seal stored boxes or use tight-fitting containers.
3. Inspect shoes and rarely used clothing before wearing them.
4. Wear gloves while handling stored materials and keep hands clear of hidden spaces.
5. Repair door sweeps and suitable entry gaps.
6. Use sticky monitors in protected locations inaccessible to children and pets to track activity.

Reducing insect prey and unnecessary light attraction helps remove resources. Record monitor locations and dates for the professional; one empty trap does not prove the building is free of spiders. Extension monitoring and sanitation guidance

Chemicals you may encounter

Extension discusses bifenthrin sprays and cyfluthrin or deltamethrin dusts in professional recluse control. These are ingredient examples, not a recommendation to dust an entire attic. Spiders can be difficult to control with insecticides, and broad attic treatment risks drift into living areas or contamination of belongings. Concealed void treatment requires a qualified assessment. Texas A&M guidance

The label is the law. Use a product labeled for the actual pest and location, and follow its directions for placement, amounts, protective equipment and re-entry. Keep products and treated areas away from children and pets as the label directs. Never use an outdoor-only pesticide indoors or assume more product works better. EPA pesticide safety

Seasonal watch

Use North Texas spring checks and seasonal storage changes as prompts to inspect rarely disturbed areas. Extension notes adults are often seen in spring, but a calendar does not make stored clothing or boxes safe to handle. Continue contact precautions whenever moving stored goods. Texas A&M guidance

When to get help

Suspected household infestation warrants a qualified, licensed pest professional willing to identify and monitor the spider. A doctor should assess a suspected bite or concerning lesion; do not delay care while trying to prove the cause. Provide a photograph or safely contained specimen only if obtainable without handling a live spider. Texas A&M guidance

This field guide is educational and does not offer treatment bookings.