Brown Recluse Spider Bite

Black Widow vs. Brown Recluse Slideshow

• Brown Recluse Spider Bite Overview
• Brown Recluse Bite - Causes
• Brown Recluse Bite Symptoms
• When to Seek Medical Care
• Exams and Tests
• Brown Recluse Bite Treatment
• Self-Care at Home
• Medical Treatment
• Next Steps
• Follow-up
• Prevention
• Outlook
• Pictures of Brown Recluse Spider and Spider Bites
• Synonyms and Keywords
• Authors and Editors
• Pictures of Black Widow vs. Brown Recluse - Slideshow

Brown Recluse Spider Bite Overview

Most spiders are absolutely harmless to humans. In fact, of the 20,000 different species of spiders that inhabit the Americas, only 60 are capable of biting humans. Within that small group, only four are known to be dangerous to humans: the brown recluse, the black widow, the hobo or aggressive house spider, and the yellow sac spider. Within this select group, only the brown recluse and the black widow spider have ever been associated with significant disease and very rare reports of death.

• Deaths from brown recluse spiders have been reported only in children younger than seven years. Brown recluse spiders are native to the Midwestern and Southeastern states. Documented populations of brown recluse spiders outside these areas are extremely rare. Fewer than 10 individual spiders have ever been collected outside of these native states. Most false sightings are due to confusion with one of the 13 other species found in the same family.
  
  
  • The most common non-brown recluse spiders are the desert recluse found in Texas, Arizona, and California, and the Arizona recluse. No deaths have ever been reported from non-brown recluse spiders. Bites from these cousins produce mild to moderate local skin disease.
  
  
• Features: Brown recluse spiders are notable for their characteristic violin pattern on the back of the cephalothorax-the body part to which the legs attach. The violin pattern is seen with the base of the violin at the head of the spider and the neck of the violin pointing to the rear. These small nonhairy spiders are yellowish-tan to dark brown in color with darker legs. They have legs about one inch in length. The name of the genus, Loxosceles, means six eyes. Most other spiders have eight eyes. Yet this unique feature of the brown recluse is lost on the casual observer because the eyes are too small to be seen with the naked eye.
  
  
• Habits: These spiders are not aggressive and bite only when threatened, usually when pressed up against the victim's skin. They seek out dark, warm, dry environments such as attics, closets, porches, barns, basements, woodpiles, and old tires. Its small, haphazard web, found mostly in corners and crevices, is not used to capture prey. Most bites occur in the summer months.

Picture of Brown Recluse Spider