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BugGuide Gathering
Smoky Mountains
University of Tennessee Biological Field Station
August 8-10, 2008
 
Photos from the gathering
 
Photos from the 2007 gathering in Minnesota

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Species Loxosceles reclusa - Brown Recluse

Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Haplogynes)
Family Sicariidae (Recluse Spiders)
Genus Loxosceles (Recluse Spiders)
Species reclusa (Brown Recluse)
Size
The body of the brown recluse is under half an inch in length.
Identification
The legs are uniformly colored and covered with fine hairs. The legs have no stripes, banding, or spines on them. The abdomen is also uniformly colored.
Range

Also see this article which states the recluse has been found in eight counties in FL.
Remarks
Very shy and is nocturnal, therefore most likely encountered at night when it is foraging for food. During the day the brown recluse hides in secluded places.
An interesting fact is the brown recluse cannot bite through clothing because of its small fangs.
Most brown recluse bites result in only a small red mark and heal without serious complications.
The bite of the brown recluse is usually painless and many go unnoticed for as long as 2 to 8 hours or the victim may feel a stinging sensation later followed by intense pain. A small white blister develops at the site of the bite, followed by swelling of the area. This swollen area enlarges and becomes red. The site becomes painful and hard to the touch. A necrotic lesion develops and the affected tissue dies and slowly sloughs away exposing the underling tissue. This necrotic ulcer may persist for several months and heals slowly, leaving a sunken area of scar tissue.
It is exceedingly hard for a physician to correctly diagnose a "brown recluse bite" based simply on the wound characteristics.
In very rare cases, the bite may result in a systemic reaction accompanied by fever, chills, dizziness, rash or vomiting.
Works Cited
1.National Audubon Society Field Guide to Insects and Spiders
By Lorus and Margery Milne
2.Borror and DeLong's Introduction to the Study of Insects
By Norman F. Johnson, Charles A. Triplehorn