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Poisonous Spiders

In North America the widow spiders, recluse spiders, hobo spiders, and yellow sac spiders are the only spiders of medical importance. Though a red-legged widow spider (Latrodectus bishopi) lives in Florida, Black Widow (Latrodectus mactans) bites are far more common. There are about thirteen species of poisonous Loxosceles spiders in the U.S., but most severe bites are caused by the Brown Recluse (Loxosceles reclusa). The Hobo Spider (Tegenaria agrestis) is found in the northwestern states. Bites of Yellow (or Golden) Sac Spiders, genus Cheiracanthium, are infrequently seen.
The Brown Recluse and the Black Widow are the only poisonous spiders in Arkansas.