What is the most poisonous spider in the United States?


Recluse spider is the highly venomous spider and thought to be most dangerous in the United States. This species measures 6 to 8 mm in body length. The Brown recluse venom can cause significant cutaneous injury with tissue loss and necrosis and can be deadly to humans.

It is not an aggressive species and it only bites when threatened. A dark violin shape is located on the top of the leg attachment region with the neck of violin pointing backward toward the abdomen. When the most spiders have 8 eyes, Recluse spider has 6 eyes arranged in pairs- one pair in front and a pair on either side.

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