Atypus is a genus of spiders known as purse web spiders, primarily found in Europe and parts of Asia. They are characterized by their unique silk structures, which resemble small, tubular webs that are buried in the ground. These webs serve as both a retreat and a trap for unsuspecting prey. Purse web spiders are typically dark in color and have a robust body. They are not aggressive and prefer to remain hidden in their silk-lined burrows. When prey approaches, they quickly emerge to capture it, showcasing their specialized hunting technique.