FIELD GUIDE / 01
How to get an identification
A violin-shaped marking alone is not enough to identify a brown recluse. The spider has six eyes arranged in three pairs, but seeing them safely and distinguishing similar spiders can be difficult.
Do not handle a live spider. If it can be done safely, photograph it or contain it without touching it and ask a qualified identifier to examine it. A clear specimen or photograph can help distinguish a recluse from another spider.
FIELD GUIDE / 02
Where they actually live in a Tulsa home
OSU lists attics, crawl spaces, baseboard voids, garages and storage areas as brown recluse hiding places. Inspect the spaces present in your building; its age or historic district does not establish an infestation.
OSU notes populations build up especially in vacant homes and buildings — so a house that has stood empty, or a garage that has gone uncleaned for years, is where the population concentrates.
The order below is the order the evidence points: the garage and storage are where the first sightings usually happen.
- The garage Cardboard against walls, stored goods on the floor, the corners nobody disturbs.
- The attic hatch and storage Holiday goods, old clothing, boxes on the floor.
- Crawl spaces and baseboard voids Where the population lives when the sightings stop.
FIELD GUIDE / 03
Inspect storage and sleeping areas
Check undisturbed storage, garage shelving, closets and the spaces behind furniture. Wear gloves and shake out stored shoes, clothing and bedding before use. Use a flashlight rather than reaching blindly into a gap.
Move stored items away from walls where practical and replace open cardboard with closed containers. Vacuum accessible cracks and remove debris; seal gaps around doors and penetrations when they can be safely reached.
FIELD GUIDE / 04
Treatment and follow-up
Sticky monitors placed where children and pets cannot reach them can help show where spiders are moving. Record the location and date of captures and share them with the provider; traps are a monitoring tool as well as a way to catch individual spiders.
Treatment targets where the spiders are: cracks, crevices, behind baseboards and the attic and crawl space voids. Open-floor spraying misses the population — it is the voids that matter.
Ask for an inspection-based plan identifying harborages, preparation, any proposed pesticide application and follow-up. Compare the areas covered and return-visit terms. Avoid foggers or indiscriminate spraying as a substitute for removing clutter and addressing entry points.
FIELD GUIDE / 05
What to do after a suspected bite
Seek medical advice for a concerning wound; many conditions can resemble a spider bite. If severe symptoms develop, seek urgent care. Do not delay care while trying to catch a spider.
A safely obtained photograph or specimen may help with identification, but a wound alone cannot establish the species.