Tangle-web spiders, also known as cobweb spiders, belong to the family Theridiidae. They are recognized for their irregular, tangled webs that are often found in corners of buildings, under furniture, or in vegetation. These webs are designed to catch unsuspecting insects, which the spiders consume. These spiders are typically small and can vary in color, often appearing brown or gray. Tangle-web spiders are mostly nocturnal, meaning they are more active at night. They play an important role in controlling insect populations, contributing to the balance of ecosystems where they reside.