November 27, 2014

Black Widow vs. Brown Recluse Spider in Pictures

Black Widow Spider (left) and Brown Recluse Spider (right).
One of the dangers of a black widow<br /> spider bite is its effects on the nervous system.
Victims can suffer various symptoms from a black widow bite.
The brown recluse venom is extremely poisonous, even more potent than that of a rattlesnake.
Symptoms for a brown recluse bite usually develop two to eight hours after a bite.
The black widow name is derived from the mistaken belief that the female invariably kills the male after mating.
The southern black widow spider is characterized by its distinctive red hour glass marking.
The northern black widow spider is recognized by its row of red spots (upper surface) and two crosswise bars (undersurface).
Brown recluse spiders are native to the Midwestern and Southeastern states.
Non-brown recluse spider
Brown recluse spiders are notable for their characteristic violin pattern on the back.
Male & female black widow spider with egg sac.
Brown Recluse Spider
The initial bite of a black widow spider may only show a minimal local reaction.
Example of a back widow spider bite several hours (left) to several days later (right).

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Reviewed by Melissa Conrad Stöppler, MD on Friday, July 29, 2011

Spiders Slideshow: Black Widow vs Brown Recluse

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