Black widows are notorious spiders identified by the colored, hourglass-shaped mark on their abdomens. This spider’s bite is much feared because its venom is reported to be 15 times stronger than a rattlesnake’s. These spiders spin large webs in which females suspend a cocoon with hundreds of eggs. Spider lings disperse soon after they leave their eggs, but the web remains. Black widow spiders also use their webs to ensnare their prey, which consists of flies, mosquitoes, grasshoppers, beetles, and caterpillars.
Many different kinds of spiders live in Homes and around buildings. Some, such as garden and cellar spiders, construct webs to help entrap their prey. Widow spiders belong to the cobweb spider family and spin loosely organized trap webs. The webs are usually found under objects such as rocks and ground trash or under an overhanging embankment.