page_title: Theridiidae
section_title: Genera
hierarchical_section_title: Theridiidae / Genera
caption_attribution_description: female Dipoena martinae from Okinawa.
context_page_description: Theridiidae, also known as the tangle-web spiders, cobweb spiders and comb-footed spiders, is a large family of araneomorph spiders first described by Carl Jakob Sundevall in 1833. This diverse, globally distributed family includes over 3,000 species in 124 genera, and is the most common arthropod found in human dwellings throughout the world.
  Theridiid spiders are both entelegyne, meaning that the females have a genital plate, and ecribellate, meaning that they spin sticky capture silk instead of woolly silk. They have a comb of serrated bristles on the tarsus of the fourth leg.
  The family includes some model organisms for research, including the medically important widow spiders. They are important to studies characterizing their venom and its clinical manifestation, but widow spiders are also used in research on spider silk and sexual biology, including sexual cannibalism. Anelosimus are also model organisms, used for the study of sociality, because it has evolved frequently within the genus, allowing comparative studies across species, and because it contains species varying from solitary to permanently social.
context_section_description: The largest genus is Theridion with over 600 species, but it is not monophyletic. Parasteatoda, previously Achaearanea, is another large genus that includes the North American common house spider.
  As of April 2019, the World Spider Catalog accepts the following genera:
  Achaearanea Strand, 1929 – Africa, Asia, Australia, South America, Central America
  Achaearyopa Barrion & Litsinger, 1995 – Philippines
  Achaeridion Wunderlich, 2008 – Turkey
  Allothymoites Ono, 2007 – China, Japan
  Ameridion Wunderlich, 1995 – Central America, Caribbean, Mexico, South America
  Anatea Berland, 1927 – Australia
  Anatolidion Wunderlich, 2008 – Africa, Europe, Turkey
  Anelosimus Simon, 1891 – Asia, Africa, North America, South America, Oceania, Central America, Caribbean
  Argyrodella Saaristo, 2006 – Seychelles
  Argyrodes Simon, 1864 – Africa, Asia, Oceania, North America, South America, Jamaica
  Ariamnes Thorell, 1869 – Costa Rica, South America, Asia, Africa, Oceania, Mexico, Cuba
  Asagena Sundevall, 1833 – North America, Asia, Europe, Algeria
  Asygyna Agnarsson, 2006 – Madagascar
  Audifia Keyserling, 1884 – Guinea-Bissau, Congo, Brazil
  Bardala Saaristo, 2006 – Seychelles
  Borneoridion Deeleman & Wunderlich, 2011 – Indonesia
  Brunepisinus Yoshida & Koh, 2011 – Indonesia
  Cabello Levi, 1964 – Venezuela
  Cameronidion Wunderlich, 2011 – Malaysia
  Campanicola Yoshida, 2015 – Asia
  Canalidion Wunderlich, 2008 – Russia
  Carniella Thaler & Steinberger, 1988 – Europe, Angola, Asia
  Cephalobares O. Pickard-Cambridge, 1871 – Sri Lanka, China
  Cerocida Simon, 1894 – Brazil, Venezuela, Guyana
  Chikunia Yoshida, 2009 – Asia
  Chorizopella Lawrence, 1947 – South Africa
  Chrosiothes Simon, 1894 – North America, South America, Central America, Caribbean, Asia
  Chrysso O. Pickard-Cambridge, 1882 – North America, South America, Central America, Asia, Trinidad, Europe
  Coleosoma O. Pickard-Cambridge, 1882 – United States, South America, Seychelles, Asia, New Zealand
  Coscinida Simon, 1895 – Asia, Africa
  Craspedisia Simon, 1894 – Brazil
  Crustulina Menge, 1868 – Ukraine, United States, Africa, Oceania, Asia
  Cryptachaea Archer, 1946 – South America, North America, Oceania, Central America, Asia, Trinidad, Belgium
  Cyllognatha L. Koch, 1872 – Samoa, Australia, India
  Deelemanella Yoshida, 2003 – Indonesia
  Dipoena Thorell, 1869 – North America, Oceania, Asia, Central America, South America, Caribbean, Africa, Europe
  Dipoenata Wunderlich, 1988 – Panama, South America, Malta
  Dipoenura Simon, 1909 – Asia, Sierra Leone
  Echinotheridion Levi, 1963 – South America
  Emertonella Bryant, 1945 – North America, Asia, Papua New Guinea
  Enoplognatha Pavesi, 1880 – Asia, Europe, Australia, Africa, North America, South America
  Episinus Walckenaer, 1809 – Asia, South America, Europe, North America, New Zealand, Central America, Africa, Caribbean
  Euryopis Menge, 1868 – Asia, North America, South America, Jamaica, Europe, Oceania, Africa, Panama
  Eurypoena Wunderlich, 1992 – Canary Is.
  Exalbidion Wunderlich, 1995 – Central America, South America, Mexico
  Faiditus Keyserling, 1884 – South America, North America, Central America, Caribbean, Asia
  Gmogala Keyserling, 1890 – Papua New Guinea, Australia
  Grancanaridion Wunderlich, 2011 – Canary Is.
  Guaraniella Baert, 1984 – Brazil, Paraguay
  Hadrotarsus Thorell, 1881 – Oceania, Belgium, Taiwan
  Helvibis Keyserling, 1884 – South America, Panama, Trinidad
  Helvidia Thorell, 1890 – Indonesia
  Hentziectypus Archer, 1946 – Caribbean, Panama, North America, South America
  Heterotheridion Wunderlich, 2008 – Turkey, Russia, China
  Hetschkia Keyserling, 1886 – Brazil
  Histagonia Simon, 1895 – South Africa
  Icona Forster, 1955 – New Zealand
  Jamaitidion Wunderlich, 1995 – Jamaica
  Janula Strand, 1932 – Asia, South America, Australia, Panama, Trinidad
  Keijiella Yoshida, 2016 – Asia
  Kochiura Archer, 1950 – Chile, Turkey, Brazil
  Landoppo Barrion & Litsinger, 1995 – Philippines
  Lasaeola Simon, 1881 – Europe, North America, Panama, South America, Asia
  Latrodectus Walckenaer, 1805 – South America, North America, Asia, Europe, Oceania, Africa
  Macaridion Wunderlich, 1992 –
  Magnopholcomma Wunderlich, 2
caption: Dipoena martinae
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