This type of spider is dark brown or a dull yellow dependent upon its age and has a dark violin-shaped mark on its back. Commonly found in dark, well-sheltered places, their webs can be found close to the ground. The location of their webs allow for them to go out and hunt for their food as the predators they are rather than wait to catch a meal in their webs.
With red hourglass-shaped marking on the underside of their abdomen, the body of a black widow is shiny and black. Female widows are larger than the males. They reside within dark, secluded and sheltered areas. In the home, they can be found in garages, basements, closets, dark corners, and cluttered spaces.