The spider genus Theridion, after which the family Theridiidae is named, consists of almost 600 described species that occur all around the world.

Notable species are the Hawaiian happyface spider (T. grallator), and Theridion nigroannulatum which is one of the very few species of spiders which live in social groups and not merely aggregate by coincidence. They live in large colonies, lying in wait for passing prey purportedly concealed under the edge of a leaf or stick with threads trailing down beneath them. If an insect intrudes, interjecting itself into the web, the spiders respond en masse, overwhelming it as a team. They even take turns helping pull large victims back to their lair.

Theridion braueri Simon, 1898 probably belongs into a different genus; however, Robertia the new name proposed by Saaristo (2006) is preoccupied

Robertia

Robertia was a small, primitive dicynodont, and among the earlier members of this group. The type species R. broomiana was named in 1981...

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Species

T. abruptum Simon, 1884 — North Africa T. accoense Levy, 1985 — Israel T. acutitarse Simon, 1900 — Hawaii T. adjacens (O. P.-Cambridge, 1896) — Mexico to Panama T. adrianopoli Drensky, 1915 — Bulgaria, Greece, Crete, Turkey T. aeolium Levi, 1963 — USA T. agrarium Levi, 1963 — Brazil T. agreste Nicolet, 1849 — Chile T. agrifoliae Levi, 1957 — USA, Canada T. akme Levi, 1959 — Panama T. akron Levi, 1959 — Panama T. albidorsum Strand, 1909 — South Africa T. albidum Banks, 1895 — USA, Canada T. albioculum Zhu, 1998 — China T. albipes L. Koch, 1878 — Russia, Georgia T. albocinctum Urquhart, 1892 — New Zealand T. albodecoratum Rainbow William Joseph Rainbow William Joseph Rainbow was an entomologist and arachnologist whose work includes the first catalogue of Australian spiders.-Life:... , 1916 — Queensland T. albolineatum Nicolet, 1849 — Chile T. albolineolatum Caporiacco, 1940 — Ethiopia T. albomaculosum O. P.-Cambridge, 1869 — Sri Lanka T. albopictum Thorell, 1898 — Myanmar T. albostriatum (L. Koch, 1867) — New Guinea, Queensland, Tonga, Norfolk Islands T. albulum O. P.-Cambridge, 1898 — Panama T. altum Levi, 1963 — Paraguay T. amarga Levi, 1967 — Chile, Argentina T. amatitlan Levi, 1963 — Guatemala T. ambiguum Nicolet, 1849 — Chile T. ampascachi Mello-Leitão, 1941 — Argentina T. ampliatum Urquhart, 1892 — New Zealand T. angusticeps Caporiacco, 1949 — Kenya T. angustifrons Caporiacco, 1934 — Karakorum T. annulipes O. P.-Cambridge, 1869 — Sri Lanka T. anson Levi, 1967 — Juan Fernandez Islands T. antillanum Simon, 1894 — West Indies T. antron Levi, 1963 — Brazil T. apiculatum Roewer, 1942 — Queensland T. aporum Levi, 1963 — Brazil T. apostoli Mello-Leitão, 1945 — Argentina T. apulco Levi, 1959 — Mexico T. aragua Levi, 1963 — Venezuela T. archeri Levi, 1959 — Cuba T. argentatulum Roewer, 1942 — New Zealand T. arizonense Levi, 1957 — USA T. artum Levi, 1959 — Panama, Trinidad T. aruanum Strand, 1911 — Aru Islands T. arushae Caporiacco, 1947 — Tanzania T. asbolodes Rainbow, 1917 — South Australia T. astrigerum Thorell, 1895 — Myanmar T. atratum Thorell, 1877 — Sulawesi T. attritum Theridion attritum Theridion attritum is a spider from Western Australia. While it was formerly placed in the families Araneidae and Theridiosomatidae' in 1967 it was found to belong to the family Theridiidae, and indeed to the genus Theridion. While all members of the first two families have a large colulus, while... (Simon, 1908) — Western Australia T. auberti Simon, 1904 — South Africa T. aulos Levi, 1963 — Brazil T. australe Banks, 1899 — USA, Mexico, West Indies T. baccula Thorell, 1887 — Myanmar T. baltasarense Levi, 1963 — Windward Islands T. banksi Berland, 1920 — East Africa T. barbarae Levi, 1959 — Mexico T. beebei Levi, 1963 — Venezuela T. bellatulum Levi, 1963 — Brazil T. bergi Levi, 1963 — Brazil, Paraguay, Argentina T. berlandi Roewer, 1942 — Samoa T. betteni Wiehle, 1960 — Palearctic T. bicruciatum Roewer, 1961 — Senegal T. bidepressum Yin, Peng & Zhang, 2005 — China T. biezankoi Levi, 1963 — Brazil T. biforaminum Gao & Zhu, 1993 — China T. biolleyi Banks, 1909 — Costa Rica T. biseriatum Thorell, 1890 — Sumatra T. bitakum Barrion & Litsinger, 1995 — Philippines T. blackwalli O. P.-Cambridge, 1871 — Europe, Russia, Ukraine, North Africa T. blaisei Simon, 1909 — Vietnam T. boesenbergi Strand, 1904 — Europe, Russia, Ukraine T. bolivari Levi, 1959 — Mexico T. bolum Levi, 1963 — Brazil T. bomae Schmidt, 1957 — Congo T. botanicum Levi, 1963 — Venezuela T. brachypus Thorell, 1887 — Myanmar T. bradyanum Strand, 1907 — South Africa T. brunellii Caporiacco, 1940 — Ethiopia T. brunneonigrum Caporiacco, 1949 — Kenya T. bryantae Roewer, 1951 — Mexico T. bullatum Tullgren, 1910 — Tanzania T. buxtoni Berland, 1929 — Samoa, Henderson Islands, Tuamotu Arch. T. calcynatum Holmberg, 1876 — Venezuela to Argentina T. californicum Banks, 1904 — USA, Canada T. caliginosum Marples, 1955 — Samoa T. cameronense Levi, 1957 — USA, Mexico T. campestratum Simon, 1900 — Hawaii T. caplandense Strand, 1907 — South Africa T. carinatum Yin, Peng & Zhang, 2005 — China T. carpathium Brignoli, 1984 — Greece T. cassinicola Simon, 1907 — Guinea-Bissau T. castaneum Franganillo, 1931 — Cuba T. catharina Marples, 1955 — Samoa T. cavipalpe (F. O. P.-Cambridge, 1902) — Guatemala T. cazieri Levi, 1959 — Bahama Islands T. centrum Levi, 1959 — Panama T. chacoense Levi, 1963 — Bolivia T. chakinuense Wunderlich, 1995 — Turkmenistan T. chamberlini Caporiacco, 1949 — Kenya T. charitonowi Caporiacco, 1949 — Kenya T. cheimatos Gertsch & Archer, 1942 — USA T. cheni Zhu, 1998 — China T. chihuahua Levi, 1959 — Mexico T. chiriqui Levi, 1959 — Panama T. chonetum Zhu, 1998 — China T. choroni Levi, 1963 — Venezuela T. cinctipes Banks, 1898 — USA, Mexico T. cinereum Thorell, 1875 — Russia, Ukraine T. circumtextum Simon, 1907 — Guinea-Bissau T. climacode Thorell, 1898 — Myanmar T. clivalum Zhu, 1998 — China T. cloxum Roberts, 1983 — Aldabra T. clypeatellum Tullgren, 1910 — East Africa T. cochise Levi, 1963 — USA T. cochrum Levi, 1963 — Brazil T. cocosense Strand, 1906 — Costa Rica T. coenosum Thorell, 1887 — Myanmar T. cohni Levi, 1963 — Brazil T. coldeniae Baert & Maelfait, 1986 — Galapagos Islands T. comstocki Berland, 1920 — East Africa T. confusum O. P.-Cambridge, 1885 — Yarkand T. conigerum Simon, 1914 — Europe, Russia T. contreras Levi, 1959 — Mexico T. convexellum Roewer, 1942 — Queensland, New South Wales T. convexisternum Caporiacco, 1949 — Kenya T. corcyraeum Brignoli, 1984 — Corfu T. costaricaense Levi, 1963 — Costa Rica to Venezuela T. cowlesae Levi, 1957 — USA T. coyoacan Levi, 1959 — Mexico T. crinigerum Simon, 1881 — Corsica, Italy, Morocco, Algeria T. cruciferum Urquhart, 1886 — New Zealand T. crucum Levi, 1959 — Mexico T. cuspulatum Schmidt & Krause, 1998 — Cape Verde Islands T. cuyutlan Levi, 1963 — Mexico T. cynicum Gertsch & Mulaik, 1936 — USA, Mexico T. dafnense Levy & Amitai, 1982 — Israel T. darolense Strand, 1906 — Ethiopia T. davisorum Levi, 1959 — Mexico T. dayongense Zhu, 1998 — China T. decemmaculatum Thorell, 1890 — Sumatra T. decemperlatum (Simon, 1889) — Madagascar T. dedux O. P.-Cambridge, 1904 — South Africa T. delicatum O. P.-Cambridge, 1904 — South Africa T. derhami Simon, 1895 — Sierra Leone, Gabon, Bioko T. diadematum Chrysanthus, 1963 — New Guinea T. dianiphum Rainbow, 1916 — Queensland T. differens Emerton, 1882 — USA, Canada T. dilucidum Simon, 1897 — Costa Rica to Venezuela, West Indies T. dilutum Levi, 1957 — USA, Mexico T. dividuum Gertsch & Archer, 1942 — USA T. dominica Levi, 1963 — Dominica T. dreisbachi Levi, 1959 — Mexico T. dubium Bradley, 1877 — New Guinea T. dukouense Zhu, 1998 — China T. dulcineum Gertsch & Archer, 1942 — USA T. durbanicum Lawrence, 1947 — South Africa T. ecuadorense Levi, 1963 — Ecuador T. egyptium Fawzy & El Erksousy, 2002 — Egypt T. electum (O. P.-Cambridge, 1896) — Mexico T. elegantissimum Roewer, 1942 — Taiwan T. elevatum Thorell, 1881 — Queensland T. elimatum L. Koch, 1882 — Mallorca T. elisabethae Roewer, 1951 — Mexico T. elli Sedgwick, 1973 — Chile T. ellicottense Dobyns & Bond, 1996 — USA T. emertoni Berland, 1920 — East Africa T. epiense Berland, 1938 — New Hebrides T. eremum Levi, 1963 — Brazil T. eugeni Roewer, 1942 — Bioko T. evexum Keyserling, 1884 — Mexico, West Indies to Brazil T. excavatum F. O. P.-Cambridge, 1902 — Guatemala T. exlineae Levi, 1963 — Ecuador, Peru T. expallidatum O. P.-Cambridge, 1885 — Yarkand T. familiare O. P.-Cambridge, 1871 — Palearctic T. fastosum Keyserling, 1884 — Ecuador, Peru T. fatuhivaense Berland, 1933 — Marquesas Islands T. femorale Thorell, 1881 — Queensland T. femoratissimum Caporiacco, 1949 — Kenya T. fernandense Simon, 1907 — Bioko T. filum Levi, 1963 — Brazil T. flabelliferum Urquhart, 1887 — New Zealand T. flavonotatum Becker, 1879 — USA, Cuba T. flavoornatum Thorell, 1898 — Myanmar T. fornicatum Simon, 1884 — Sudan T. frio Levi, 1959 — Mexico T. frizzellorum Levi, 1963 — Colombia, Ecuador, Venezuela T. frondeum Hentz, 1850 — USA, Bahama Islands T. fruticum Simon, 1890 — Yemen T. fungosum Keyserling, 1886 — Ecuador, Peru T. furfuraceum Simon, 1914 — France, Algeria, Syria T. fuscodecoratum Rainbow, 1916 — Queensland T. fuscomaculatum Rainbow, 1916 — Queensland T. fuscum Franganillo, 1930 — Cuba T. gabardi Simon, 1895 — Sri Lanka T. galerum Levi, 1959 — Panama T. gekkonicum Levy & Amitai, 1982 — Israel T. geminipunctum Chamberlin, 1924 — USA, Mexico T. genistae Simon, 1873 — Western Mediterranean to Uzbekistan T. genistae turanicum Charitonov, 1946 — Uzbekistan T. gentile Simon, 1881 — Corsica, Algeria T. gertschi Levi, 1959 — USA, Mexico T. gibbum Rainbow, 1916 — Queensland T. gigantipes Keyserling, 1890 — New South Wales, Victoria T. giraulti Rainbow, 1916 — Queensland T. glaciale Caporiacco, 1934 — Karakorum T. glaucescens Becker, 1879 — USA, Canada T. glaucinum Simon, 1881 — France T. goodnightorum Levi, 1957 — USA, Mexico T. gracilipes Urquhart, 1889 — New Zealand T. grallator Theridion grallator Theridion grallator, also known as the "happy face spider," is a member of the Theridiidae family.The Hawaiian name is nananana makakii... Simon, 1900 — Hawaii T. gramineum Zhu, 1998 — China T. grammatophorum Simon, 1909 — Vietnam T. grancanariense Wunderlich, 1987 — Canary Islands T. grandiosum Levi, 1963 — Peru T. grecia Levi, 1959 — Mexico to Venezuela T. gyirongense Hu & Li, 1987 — China T. hainenense Zhu, 1998 — China T. haleakalense Simon, 1900 — Hawaii T. hannoniae Denis, 1944 — Europe, North Africa, Madeira, Canary Islands T. hartmeyeri Simon, 1908 — Western Australia T. hassleri Levi, 1963 — Hispaniola T. hebridisianum Berland, 1938 — New Hebrides T. helophorum Thorell, 1895 — Java T. hemerobium Simon, 1914 — USA, Canada, Europe T. hermonense Levy, 1991 — Israel T. hewitti Caporiacco, 1949 — Ethiopia T. hidalgo Levi, 1957 — USA, Mexico T. hierichonticum Levy & Amitai, 1982 — Israel T. hispidum O. P.-Cambridge, 1898 — Mexico, West Indies to Paraguay T. histrionicum Thorell, 1875 — Balkans T. hondurense Levi, 1959 — Honduras T. hopkinsi Berland, 1929 — Samoa T. hotanense Zhu & Zhou, 1993 — China T. huanuco Levi, 1963 — Peru T. hufengensis Tang, Yin & Peng, 2005 — China T. hui Zhu, 1998 — China T. humboldti Levi, 1967 — Peru T. hummeli Schenkel, 1936 — China T. idiotypum Rainbow, 1917 — South Australia T. illecebrosum Simon, 1886 — Senegal T. impegrum Keyserling, 1886 — Brazil T. impressithorax Simon, 1895 — Philippines T. impressum L. Koch, 1881 — Holarctic T. incanescens Simon, 1890 — Yemen T. incertissimum (Caporiacco, 1954) — French Guiana, Brazil T. incertum O. P.-Cambridge, 1885 — India T. incomtum (O. P.-Cambridge, 1896) — Guatemala T. inconspicuum Thorell, 1898 — Myanmar T. indicum Tikader, 1977 — Andaman Islands T. innocuum Thorell, 1875 — Russia, Ukraine T. inquinatum Thorell, 1878 — Myanmar, Singapore, Amboina T. inquinatum continentale Strand, 1907 — China T. insignitarse Simon, 1907 — Gabon T. intritum (Bishop & Crosby, 1926) — USA T. iramon Levi, 1963 — Colombia, Ecuador T. ischagosum Barrion & Litsinger, 1995 — Philippines T. isorium Levi, 1963 — Peru T. istokpoga Levi, 1957 — USA to Panama T. italiense Wunderlich, 1995 — Italy T. jordanense Levy & Amitai, 1982 — Israel T. kambalum Barrion & Litsinger, 1995 — Philippines T. karamayense Zhu, 1998 — China T. kauaiense Simon, 1900 — Hawaii T. kawea Levi, 1957 — USA, Mexico T. kibonotense Tullgren, 1910 — East Africa T. kiliani Müller & Heimer, 1990 — Colombia T. kobrooricum Strand, 1911 — Aru Islands T. kochi Roewer, 1942 — Samoa T. kollari Doleschall, 1852 — Austria T. kraepelini Simon, 1905 — Java T. kraussi Marples, 1957 — Fiji T. lacticolor Berland, 1920 — Kenya, Yemen, Madagascar T. laevigatum Blackwall, 1870 — Italy T. lago Levi, 1963 — Ecuador T. lamperti Strand, 1906 — Ethiopia T. lanceatum Zhang & Zhu, 2007 — China T. lapidicola Kulczynski, 1887 — Italy T. latisternum Caporiacco, 1934 — Karakorum T. lawrencei Gertsch & Archer, 1942 — USA T. leechi Gertsch & Archer, 1942 — USA, Canada T. leguiai Chamberlin, 1916 — Colombia, Peru T. lenzianum Strand, 1907 — South Africa T. leones Levi, 1959 — Mexico T. leucophaeum Simon, 1905 — India T. leve Blackwall, 1877 — Seychelles T. leviorum Gertsch & Riechert, 1976 — USA T. liaoyuanense (Zhu & Yu, 1982) — China T. limatum Tullgren, 1910 — Tanzania T. limitatum L. Koch, 1872 — Queensland, New South Wales

T. linaresense Levi, 1963 — Chile T. linzhiense Hu, 2001 — China T. llano Levi, 1957 — USA T. lomirae Roewer, 1938 — New Guinea T. longicrure Marples, 1956 — New Zealand T. longihirsutum Strand, 1907 — China T. longipalpum Zhu, 1998 — China, Korea T. longipedatum Roewer, 1942 — Colombia T. ludekingi Thorell, 1890 — Java T. ludius Simon, 1880 — Malaysia to Australia, New Caledonia T. lumabani Barrion & Litsinger, 1995 — Philippines T. luteitarse Schmidt & Krause, 1995 — Cape Verde Islands T. macei Simon, 1895 — Congo T. machu Levi, 1963 — Peru T. macropora Tang, Yin & Peng, 2006 — China T. macuchi Levi, 1963 — Ecuador T. maculiferum Roewer, 1942 — Zanzibar T. magdalenense Müller & Heimer, 1990 — Colombia T. maindroni Simon, 1905 — India T. manjithar Tikader, 1970 — India T. manonoense Marples, 1955 — Samoa T. maranum Levi, 1963 — Venezuela T. maron Levi, 1963 — Paraguay T. martini Levi, 1959 — Mexico T. mataafa Marples, 1955 — Samoa T. mauense Caporiacco, 1949 — Kenya T. mauiense Simon, 1900 — Hawaii T. mehlum Roberts, 1983 — Aldabra T. melanoplax Schmidt & Krause, 1996 — Canary Islands T. melanoprorum Thorell, 1895 — Myanmar T. melanoprorum orientale Simon, 1909 — Vietnam T. melanosternon Mello-Leitão, 1947 — Brazil T. melanostictum O. P.-Cambridge, 1876 — Mediterranean, Aldabra, Seychelles, China, Japan, USA, Hispaniola T. melanurum Hahn, 1831 — Holarctic, Azores T. melinum Simon, 1900 — Hawaii T. mendozae Berland, 1933 — Marquesas Islands T. meneghettii Caporiacco, 1949 — Kenya T. metabolum Chamberlin & Ivie, 1936 — Panama T. metator Simon, 1907 — Guinea-Bissau T. michelbacheri Levi, 1957 — USA T. micheneri Levi, 1963 — Panama T. minutissimum Keyserling, 1884 — Panama, Peru T. minutulum Thorell, 1895 — Myanmar T. miserum Thorell, 1898 — Myanmar T. modestum (Simon, 1894) — Sri Lanka T. molliculum Thorell, 1899 — Cameroon T. mollissimum L. Koch, 1872 — Australia, Samoa T. montanum Emerton, 1882 — USA, Canada, Alaska, Norway, Finland, Russia T. monzonense Levi, 1963 — Peru T. mortuale Simon, 1908 — Western Australia T. morulum O. P.-Cambridge, 1898 — USA, Mexico T. murarium Emerton, 1882 — North America T. musivivoides Schmidt & Krause, 1995 — Cape Verde Islands T. musivivum Schmidt, 1956 — Canary Islands T. musivum Simon, 1873 — Mediterranean T. myersi Levi, 1957 — USA, Mexico, Jamaica T. mystaceum L. Koch, 1870 — Palearctic T. mysteriosum Schmidt, 1971 — Ecuador T. nadleri Levi, 1959 — Trinidad T. nagorum Roberts, 1983 — Aldabra T. nasinotum Caporiacco, 1949 — Kenya T. nasutum Wunderlich, 1995 — Sardinia T. necijaense Barrion & Litsinger, 1995 — Philippines T. negebense Levy & Amitai, 1982 — Israel T. neomexicanum Banks, 1901 — USA, Canada T. neshamini Levi, 1957 — USA T. nesticum Levi, 1963 — Trinidad T. nigriceps Keyserling, 1891 — Brazil T. nigroannulatum Keyserling, 1884 — Ecuador, Peru T. nigroplagiatum Caporiacco, 1949 — Kenya T. nigropunctatum Lucas, 1846 — Mediterranean T. nigropunctulatum Thorell, 1898 — Myanmar T. nigrosacculatum Tullgren, 1910 — Tanzania T. nigrovariegatum Simon, 1873 — Palearctic T. nilgherinum Simon, 1905 — India T. niphocosmum Rainbow, 1916 — Queensland T. niveopunctatum Thorell, 1898 — Myanmar T. niveum O. P.-Cambridge, 1898 — Mexico T. nivosum Rainbow, 1916 — Queensland T. nodiferum Simon, 1895 — Sri Lanka T. nojimai Yoshida, 1999 — Japan T. nudum Levi, 1959 — Mexico, Panama T. oatesi Thorell, 1895 — Myanmar T. obscuratum Zhu, 1998 — China T. ochreolum Levy & Amitai, 1982 — Israel T. octoferum Strand, 1909 — South Africa T. odoratum Zhu, 1998 — China T. ohlerti Thorell, 1870 — Holarctic T. ohlerti lundbecki Sørensen, 1898 — Greenland T. olaup Levi, 1963 — Brazil T. omiltemi Levi, 1959 — Mexico, Guatemala T. onticolum Levi, 1963 — Peru T. opolon Levi, 1963 — Brazil T. opuntia Levi, 1963 — Mexico T. orgea (Levi, 1967) — Brazil T. orlando (Archer, 1950) — USA T. osprum Levi, 1963 — Venezuela T. oswaldocruzi Levi, 1963 — Brazil T. otsospotum Barrion & Litsinger, 1995 — Philippines T. palanum Roberts, 1983 — Aldabra T. palgongense Paik, 1996 — Korea T. pallidulum Roewer, 1942 — East Africa T. palmgreni Marusik & Tsellarius, 1986 — Finland, Poland, Estonia, Russia T. pandani Simon, 1895 — Cambodia T. panganii Caporiacco, 1947 — Tanzania T. paraense Levi, 1963 — Brazil T. parvulum Blackwall, 1870 — Sicily T. parvum Keyserling, 1884 — Peru T. patrizii Caporiacco, 1933 — Libya T. pelaezi Levi, 1963 — Mexico T. pennsylvanicum Emerton, 1913 — USA, Canada T. perkinsi Simon, 1900 — Hawaii T. pernambucum Levi, 1963 — Brazil T. perpusillum Simon, 1885 — Malaysia T. petraeum L. Koch, 1872 — Holarctic T. petrunkevitchi Berland, 1920 — East Africa T. phaeostomum Simon, 1909 — Vietnam T. pictipes Keyserling, 1884 — USA T. pictum (Walckenaer, 1802) — Holarctic T. pigrum Keyserling, 1886 — Brazil T. pilatum Urquhart, 1893 — Tasmania T. piligerum Frauenfeld, 1867 — Nicobar Islands T. piliphilum Strand, 1907 — South Africa T. pinastri L. Koch, 1872 — Palearctic T. pinguiculum Simon, 1909 — Vietnam T. pinicola Simon, 1873 — Corsica T. pires Levi, 1963 — Brazil T. piriforme Berland, 1938 — New Hebrides T. plaumanni Levi, 1963 — Venezuela, Brazil T. plectile Simon, 1909 — Vietnam T. plumipes Hasselt, 1882 — Sumatra T. pluviale Tullgren, 1910 — Tanzania T. poecilum Zhu, 1998 — China T. porphyreticum Urquhart, 1889 — New Zealand T. positivum Chamberlin, 1924 — USA, West Indies to Paraguay T. posticatum Simon, 1900 — Hawaii T. postmarginatum Tullgren, 1910 — Tanzania T. praeclusum Tullgren, 1910 — Tanzania T. praemite Simon, 1907 — Sierra Leone T. praetextum Simon, 1900 — Hawaii T. praetextum concolor Simon, 1900 — Hawaii T. prominens Blackwall, 1870 — Italy T. proximum Lawrence, 1964 — South Africa T. puellae Locket, 1980 — Comoro Islands T. pulanense Hu, 2001 — China T. pumilio Urquhart, 1886 — New Zealand T. punctipes Emerton, 1924 — USA, Mexico T. punicapunctatum Urquhart, 1891 — New Zealand T. punongpalayum Barrion & Litsinger, 1995 — Philippines T. purcelli O. P.-Cambridge, 1904 — St. Helena, South Africa T. pyramidale L. Koch, 1867 — Queensland, New South Wales T. pyrenaeum Denis, 1944 — Spain, Andorra T. qingzangense Hu, 2001 — China T. quadratum (O. P.-Cambridge, 1882) — Sri Lanka, Sumatra T. quadrilineatum Lenz, 1886 — Madagascar T. quadripapulatum Thorell, 1895 — Myanmar T. quadripartitum Keyserling, 1891 — Brazil T. rabuni Chamberlin & Ivie, 1944 — USA, Bahama Islands T. rafflesi Simon, 1899 — Sumatra T. rampum Levi, 1963 — Peru, Venezuela T. ravum Levi, 1963 — Venezuela T. refugum Drensky, 1929 — Austria, Balkans, Bulgaria, Greece, Russia T. reinhardti Charitonov, 1946 — Uzbekistan T. resum Levi, 1959 — Panama T. retreatense Strand, 1909 — South Africa T. retrocitum Simon, 1909 — Vietnam T. rhodonotum Simon, 1909 — Vietnam T. ricense Levi, 1959 — Puerto Rico T. rossi Levi, 1963 — Peru T. rostriferum Simon, 1895 — West Africa T. rothi Levi, 1959 — Mexico T. rubiginosum Keyserling, 1884 — Brazil T. rubrum (Keyserling, 1886) — Brazil T. rurrenabaque Levi, 1963 — Bolivia T. ruwenzoricola Strand, 1913 — Central Africa T. saanichum Chamberlin & Ivie, 1947 — USA, Canada, Alaska T. sabinjonis Strand, 1913 — Central Africa T. sadani Monga & Singh, 1989 — India T. samoense Berland, 1929 — Samoa T. sanctum Levi, 1959 — Mexico T. sangzhiense Zhu, 1998 — China T. sardis Chamberlin & Ivie, 1944 — USA T. saropus Thorell, 1887 — Myanmar T. schlingeri Levi, 1963 — Peru T. schrammeli Levi, 1963 — Mexico T. sciaphilum Benoit, 1977 — St. Helena T. semitinctum Simon, 1914 — Spain, France, Balearic is. T. senckenbergi Levi, 1963 — Venezuela T. septempunctatum Berland, 1933 — Marquesas Islands T. serpatusum Guan & Zhu, 1993 — China T. sertatum Simon, 1909 — Vietnam T. setiferum Roewer, 1942 — Myanmar T. setosum L. Koch, 1872 — Queensland, New Hebrides, Samoa, New Caledonia T. setum Zhu, 1998 — China T. seximaculatum Zhu, 1998 — China T. sibiricum Marusik, 1988 — Russia, Mongolia T. sinaloa Levi, 1959 — Mexico T. sisyphium (Clerck, 1757) — Palearctic T. sisyphium foliiferum Thorell, 1875 — Spain T. sisyphium torandae Strand, 1917 — Yarkand, Karakorum T. soaresi Levi, 1963 — Brazil T. societatis Berland, 1934 — Tahiti T. solium Benoit, 1977 — St. Helena T. spinigerum Rainbow, 1916 — Queensland T. spinitarse O. P.-Cambridge, 1876 — North Africa T. spinosissimum Caporiacco, 1934 — Karakorum T. squalidum Urquhart, 1886 — New Zealand T. stamotum Levi, 1963 — Venezuela T. stannardi Levi, 1963 — Mexico T. strepitus Theridion strepitus Theridion strepitus is a blind cave spider found only on the Galapagos Islands. The Theridion strepitus is in the Theridiidae family and does not have any eyes.-References:... Peck & Shear, 1987 — Galapagos Islands T. striatum Keyserling, 1884 — Brazil T. styligerum F. O. P.-Cambridge, 1902 — Mexico, Guatemala T. subitum O. P.-Cambridge, 1885 — India T. submirabile Zhu & Song, 1993 — China, Korea T. submissum Gertsch & Davis, 1936 — USA, Mexico, Bahama Islands, Jamaica T. subpingue Simon, 1908 — Western Australia T. subradiatum Simon, 1901 — Malaysia T. subrotundum Keyserling, 1891 — Brazil T. subvittatum Simon, 1889 — India T. sulawesiense Marusik & Penney, 2005 — Sulawesi T. swarczewskii Wierzbicki, 1902 — Azerbaijan T. taegense Paik, 1996 — Korea T. tahitiae Berland, 1934 — Tahiti T. tamerlani Roewer, 1942 — Myanmar T. tayrona Müller & Heimer, 1990 — Colombia T. tebanum Levi, 1963 — Venezuela T. teliferum Simon, 1895 — Sri Lanka T. tenellum C. L. Koch, 1841 — Greece T. tenuissimum Thorell, 1898 — Myanmar T. teresae Levi, 1963 — Brazil T. tessellatum Thorell, 1899 — Cameroon T. teutanoides Caporiacco, 1949 — Kenya T. thaleri Marusik, 1988 — Russia T. thalia Workman, 1878 — Myanmar T. theridioides (Keyserling, 1890) — China, Queensland, New South Wales T. thorelli L. Koch, 1865 — New South Wales T. tigrae Esyunin & Efimik, 1996 — Russia T. tikaderi Patel, 1973 — India T. timpanogos Levi, 1957 — USA T. tinctorium Keyserling, 1891 — Brazil T. t-notatum Thorell, 1895 — Myanmar, Singapore T. todinum Simon, 1880 — New Caledonia T. topo Levi, 1963 — Ecuador T. torosum Keyserling, 1884 — Peru T. trahax Blackwall, 1866 — Africa T. transgressum Petrunkevitch, 1911 — USA, Mexico T. trepidum O. P.-Cambridge, 1898 — Mexico to Panama T. triangulare Franganillo, 1936 — Cuba T. trifile Simon, 1907 — West, East Africa T. trigonicum Thorell, 1890 — Sumatra, Java T. tristani Levi, 1959 — Costa Rica T. triviale Thorell, 1881 — Australia T. trizonatum Caporiacco, 1949 — Kenya T. tubicola Doleschall, 1859 — Java, Moluccas, New Guinea T. tungurahua Levi, 1963 — Venezuela, Ecuador, Brazil T. turrialba Levi, 1959 — Costa Rica T. uber Keyserling, 1884 — Brazil T. uhligi Martin, 1974 — Europe T. umbilicus Levi, 1963 — Brazil T. uncatum F. O. P.-Cambridge, 1902 — Mexico T. undatum Zhu, 1998 — China T. undulanotum Roewer, 1942 — New Hebrides T. urnigerum Thorell, 1898 — Myanmar T. ursoi Caporiacco, 1947 — Ethiopia T. urucum Levi, 1963 — Brazil T. usitum Strand, 1913 — Central Africa T. utcuyacu Levi, 1963 — Peru T. valleculum Levi, 1959 — Panama T. vallisalinarum Levy & Amitai, 1982 — Israel T. vanhoeffeni Strand, 1909 — South Africa T. varians Hahn, 1833 — Holarctic T. varians cyrenaicum Caporiacco, 1933 — Libya T. varians melanotum Strand, 1907 — Germany T. varians rusticum Simon, 1873 — Western Mediterranean T. ventricosum Rainbow, 1916 — Queensland T. vespertinum Levy, 1985 — Israel T. viridanum Urquhart, 1887 — New Zealand T. volubile Keyserling, 1884 — Venezuela, Ecuador, Peru T. vosserleri Strand, 1907 — East Africa T. vossi Strand, 1907 — Cameroon T. vossioni Simon, 1884 — Sudan T. vulvum Levi, 1959 — Panama T. weberi Thorell, 1892 — Singapore T. weyrauchi Levi, 1963 — Peru T. whitcombi Sedgwick, 1973 — Chile T. wiehlei Schenkel, 1938 — Spain, France, Algeria T. workmani Thorell, 1887 — Myanmar T. xianfengense Zhu & Song, 1992 — China, Taiwan T. xinjiangense (Hu & Wu, 1989) — China T. yani Zhu, 1998 — China T. yuma Levi, 1963 — USA T. yunnanense Schenkel, 1963 — China T. zantholabio Urquhart, 1886 — New Zealand T. zebra Caporiacco, 1949 — Kenya T. zebrinum Zhu, 1998 — China T. zekharya Levy, 2007 — Israel T. zhangmuense Hu, 2001 — China T. zhaoi Zhu, 1998 — China T. zhoui Zhu, 1998 — China T. zonarium Keyserling, 1884 — Peru T. zonatum Eydoux & Souleyet, 1841 — Unknown T. zonulatum Thorell, 1890 — Sumatra

External links

• Society-focused spiders live and hunt together - NewScientist.com