Woodlouse Spider

Joseph Berger

Woodlouse Spider

Joseph Berger

Woodlouse Spider

General Description
This spider is sometimes mistaken for the brown recluse spider, though there is only a vague resemblance between the two. But like the brown recluse, the woodlouse spider has six eyes and is most active at night. It has a one-half of an inch long body. The legs are reddish, the abdomen is gray, and the front half of the body is a dark reddish-brown. It has long, sickle-like jaws for feeding on woodlice (also known as pillbugs or sowbugs) which it hunts under rocks and logs. While this spider may become defensive when threatened, bites usually result only in redness around the bite and produce pain that lasts for less than an hour.


General Control
Inspect structures on a routine basis and seal all cracks, repair screens and ensure door sweeps are installed properly to prevent the spider from entering. Monitoring traps can be used to catch the spiders as they enter and when they wander in search of prey. Applications of residual pesticides, such as wettable powders or encapsulates, around foundations can help prevent these spiders from entering.