ĭespite rumors to the contrary, the brown recluse spider has not established itself in California or anywhere outside its native range. In the southern states, it is native from central Texas to western Georgia and north to Kentucky. The documented range of this species lies roughly south of a line from southeastern Nebraska through southern Iowa, Illinois, and Indiana to southwestern Ohio. Ī large brown recluse compared to a US penny (diameter 0.75 inches, 19.05mm) 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. The cephalothorax and abdomen are not necessarily the same color. While typically light to medium brown, they range in color from whitish to dark brown or blackish gray. īrown recluse spiders are usually between 6 and 20 millimetres (0.24 and 0.79 in), but may grow larger. The brown recluse is one of three spiders (the others being the black widow and Loxosceles laeta, the Chilean recluse) with medically significant venom in North America. Similar to other recluse spider bites, their bite sometimes requires medical attention. The brown recluse, Loxosceles reclusa, Sicariidae (formerly placed in a family "Loxoscelidae") is a recluse spider with a necrotic venom. Loxosceles reclusus orthographic variant.
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