No. 012 · spider · Risk: Moderate
Brown Recluse
Loxosceles reclusa
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In season · SeptemberSoutheastMidwest / Plains
- Field tell
- Dull brown with a dark violin-shaped mark behind the head; hides in boxes, closets, and stacked firewood.
- Why it matters
- Bite can slowly ulcerate; most bites still heal without serious complications.
- Season
- Active year-round indoors; outdoor activity peaks in warmer months.
SPIDER BITE
If you're bitten by a spider
- Wash the bite with soap and water.
- Apply a cold compress to reduce pain and swelling.
- Try to safely note or photograph the spider without handling it.
- Seek medical attention, especially for black widow or brown recluse bites, or if symptoms spread beyond the bite site.
Not medical advice. Call 911 or Poison Control 1-800-222-1222.
Related spiders
- Black Widow — Glossy black body with a red hourglass on the underside; webs in woodpiles, sheds, and undisturbed corners.