Brown recluse spider

Brown recluse spider

The brown recluse spider or violin spide is a spider with a venomous bite.
Brown recluse spiders are usually between 6–20 mm (1⁄4 in and 3⁄4 in), but may grow larger. While typically light to medium brown, they range in color from cream-colored to dark brown or blackish gray. The cephalothorax and abdomen may not necessarily be the same color. These spiders usually have markings on the dorsal side of their cephalothorax, with a black line coming from it that looks like a violin with the neck of the violin pointing to the rear of the spider, resulting in the nicknames fiddleback spider, brown fiddler, or violin spider.

DEADLY SPIDER: Man Dies of Complications From Brown recluse spider

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Due to increased fear of these spiders prompted by greater public awareness of their presence in recent years, extermination of domestic brown recluses is performed frequently in the lower midwestern United States. Brown recluse spiders possess a variety of adaptive abilities, including the abilities to maintain homeostasis for several seasons with no food or water and to survive after losing limbs. Additionally, these spiders survive significantly longer in a relatively cool, thermally stable environment.
Brown recluses’ abilities to survive starvation and thirst, and the way in which they benefit from the regulated room temperatures of human habitations, make extermination of this species particularly challenging. Many chemicals that have proven effective have now been made illegal or restricted in the U.S., making the use of chemicals to eradicate the spiders impractical. Chemicals that do not kill the spider may cause disruption to its nervous system or other systems, inducing undesirable aggressive behavior.