Theridiosomatidae, commonly known as ray spiders, are a family of araneomorph spiders first described by Eugène Simon in 1881.

[2] The family includes 137 species divided between 20 genera.

[1] They are most recognizable for their construction of cone-shaped webs.

[3] As of April 2023[update], the World Spider Catalog accepts the following genera:[1]

This Theridiosomatidae-related article is a stub.