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Family: THERIDIIDAE Sundevall, 1833

cobweb weavers

Similar Families

NESTICIDAE

Family Name Authority

Sundevall, J. C. 1833. Conspectus Arachnidum. Londini Gothorum, pp. 1-39.

Nearctic Taxonomic/Species Richness

Number of Nearctic Species: 245 (as documented in the World Spider Catalog & includes introductions)

Slice of THERIDIIDAE relative taxonomic/species richness drawn exploded from all other Families each with greater than 50 member species in the Nearctic.
[Legend: Family (#species), Percentages: Relative to total number of Nearctic species]

Nearctic/Palearctic Genera

# Genus Ref. Common Name
1 Achaearanea Strand, 1929
2 Anelosimus Simon, 1891
3 Argyrodes Simon, 1864 dewdrop spiders
4 Ariamnes Thorell, 1869
5 Chrosiothes Simon, 1894
6 Chrysso O. P.-Cambridge, 1882
7 Coleosoma O. P.-Cambridge, 1882
8 Crustulina Menge, 1868
9 Dipoena Thorell, 1869
10 Emertonella Bryant, 1945
11 Enoplognatha Pavesi, 1880
12 Episinus Walckenaer, in Latreille, 1809
13 Euryopis Menge, 1868
14 Faiditus Keyserling, 1884
15 Keijia Yoshida, 2001
16 Lasaeola Simon, 1881
17 Latrodectus Walckenaer, 1805 widow spiders
18 Neospintharus Exline, 1950
19 Neottiura Menge, 1868
20 Parasteatoda Archer, 1946
21 Paratheridula Levi, 1957
22 Pholcomma Thorell, 1869
23 Phoroncidia Westwood, 1835
24 Phycosoma O. P.-Cambridge, 1879
25 Rhomphaea L. Koch, 1872
26 Robertus O. P.-Cambridge, 1879
27 Rugathodes Archer, 1950
28 Simitidion Wunderlich, 1992
29 Spintharus Hentz, 1850
30 Steatoda Sundevall, 1833
31 Stemmops O. P.-Cambridge, 1894
32 Styposis Simon, 1894
33 Takayus Yoshida, 2001
34 Tekellina Levi, 1957
35 Theonoe Simon, 1881
36 Theridion Walckenaer, 1805
37 Theridula Emerton, 1882
38 Thymoites Keyserling, 1884
39 Tidarren Chamberlin & Ivie, 1934
40 Wamba O. P.-Cambridge, 1896

Nearctic/Palearctic Species Images

Disclaimer: every attempt is made to ensure these images are accurate. To contest an identification, contact David P. Shorthouse (dshorthouse(at)eol.org).