The brown recluse spider's bite is poisonous. The scientific name for the brown recluse is Loxosceles reclusa.
Brown recluse spider venom
The brown recluse spider is most common in the South and Central states of the United States, especially in Missouri, Kansas, Arkansas, Louisiana, eastern Texas, and Oklahoma. However, the spider has be found in several large cities outside this range.
The brown recluse spider prefers dark, sheltered areas such as under porches and in woodpiles.