Numbers
65 species in our region.
(1)
Texas Species:
Theridion australe Banks, 1899
Theridion cameronense Levi, 1957
Theridion cinctipes Banks, 1898
Theridion cynicum Gertsch & Mulaik, 1936
Theridion differens Emerton, 1882
Theridion dilutum Levi, 1957
Theridion dividuum Gertsch & Archer, 1942
Theridion flavonotatum Becker, 1879
Theridion frondeum Hentz, 1850
Theridion glaucescens Becker, 1879
Theridion goodnightorum Levi, 1957
Theridion hidalgo Levi, 1957
Theridion llano Levi, 1957
Theridion murarium Emerton, 1882
Theridion myersi Levi, 1957
Theridion positivum Chamberlin, 1924
Theridion rabuni Chamberlin & Ivie, 1944
Theridion submissum Gertsch & Davis, 1936
Remarks
One tropical species, Theridion nigroannulatum, not in our area, is social.
See Also
Enoplognatha - Enoplognatha has the four bottom eyes almost straight across. This leaves very little space between the top row of eyes and the bottom row of eyes. Genus Theridion has a slight downward curve to the bottom row of eyes which leave more of a gap between the top and bottom rows. See them below:
Theridion Enoplognatha
Print References
Spiders of the Eastern US, Howell and Jenkins, pages 110 - 113.
(2)Internet References
The Spider Genera Enoplognatha, Theridion and Paidisca in America North of Mexico, Levi revision in Bulletin of the American Museum of Natural History (1957) - large pdf file which may require a long download time.
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Peggy Dorris Survey List - List of Theridion and states where they were found.
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digitallibrary.amnh.org - PDF with written description of
edinburgensis, expulsum, cynicum, insulsum, realisticum, redemptum, detractum, & schullei.
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crawford.tardigrade.net -
Theridion varians from WA.
