http://www.cdc.gov/mmwr/PDF/wk/mm4521.pdf

This report summarizes investigations of three cases of Tegenaria agrestis bites among persons in Idaho, Oregon, and Washington; spider bites reported to U.S. poison-control centers during 1994; and emphasizes the need for physicians in the northwestern United States to consider this species as a cause of toxic arachnidism. It presents references, table and figure.