theridiid Definition

A theridiid spider is a member of the spider family Theridiidae, which is a large family of cobweb spiders. These spiders are known for their complex irregular webs, often found in dark, undisturbed areas such as beneath bark or in crevices. The popularity of the family name Theridiidae is based on the type genus Theridion, which was first described by Carl Linnaeus in 1767.