The ray spiders (Theridiosomatidae) are a family of spiders first described by Eugène Simon in 1881. They are most recognizable for their construction of cone-shaped webs. The family contains several genera which actively hunt for prey by using their webs to slingshot themselves towards prey. Genera , the World Spider Catalog accepts the following genera: Andasta Simon, 1895 – Seychelles, Malaysia, Sri Lanka Baalzebub Coddington, 1986 – Central America, Brazil, Australia, China Chthonopes Wunderlich, 2011 – Laos Chthonos Coddington, 1986 – Ecuador, Brazil, Peru Coddingtonia Miller, Griswold & Yin, 2009 – Malaysia, Laos Cuacuba Prete, Cizauskas & Brescovit, 2018 Epeirotypus O. Pickard-Cambridge, 1894 – Mexico, Costa Rica Epilineutes Coddington, 1986 – Mexico, Brazil Karstia Chen, 2010 – China Menglunia Zhao & Li, 2012 – China Naatlo Coddington, 1986 – Central America, South America, Trinidad and Tobago Ogulnius O. Pickard-Cambridge, 1882 – South America, Caribbean, Panama, Asia Parogulnius Archer, 1953 – United States Plato Coddington, 1986 – South America, Trinidad Sinoalaria Zhao & Li, 2014 – China Tagalogonia Labarque & Griswold, 2014 – Philippines Theridiosoma O. Pickard-Cambridge, 1879 – South America, Africa, Oceania, North America, Asia, Central America, Jamaica Wendilgarda Keyserling, 1886 – Asia, São Tomé and Príncipe, Central America, Brazil, Mexico, Caribbean Zoma Saaristo, 1996 – China, Seychelles Fossil species †Eoepeirotypus Wunderlich 2004 Baltic amber, Eocene †Eotheridiosoma Wunderlich 2004 Bitterfeld amber, Baltic amber, Eocene †Palaeoepeirotypus Wunderlich 1988 Dominican amber, Miocene †Umerosoma Wunderlich 2004 Baltic amber, Eocene †"Baalzebub" mesozoicum - Vendée amber, France, Turonian later considered to be stem-theridiosomatid See also List of Theridiosomatidae species References External links Spiders of South America Theridiosomatidae