Size: Female bodies range from about 1⁄4 to 1 ... According to the National Wildlife Federation, the American house spider is the spider most commonly found in homes in the United States.

What they look like: The female black widow (3/8-in ... Block access to you home as you would with American house spiders. Also, don’t leave clothing and shoes on the floor.

They're often spotted in pairs, and female spiders may lay ... t worry too much about them in your house. However, Terminix ...