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Theridiidae  Sundevall, 1833 / Theridion  Walckenaer, 1805   63 species

Theridion sibiricum Marusik, 1988

WSC LSID urn:lsid:nmbe.ch:spidersp:008687

Key to genera | Key to species

Description
Male

Prosoma length: 0.9-1.1 mm.

Body length male: 2.2-2.6 mm
Female

Prosoma length: 0.8-1.05 mm.

Body length female: 2.5-3.0 mm
Distribution
  Presence
  No data
Global distribution (WSC 2026): Russia (Urals to Far East), Kazakhastan, Mongolia
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
species

male Pedipalp, retrolateral view
(Marusik 1988a)

species

male Pedipalp, prolateral view
(Marusik 1988a)

species

male Pedipalp, ventral view
(Marusik 1988a)

species

female Epigyne, ventral view
(Marusik 1988a)

species

female Vulva, dorsal view
(Marusik 1988a)

species

female Opisthosoma, dorsal view
(Marusik 1988a)

Distribution List
Russia, Eastern   (Esyunin & Efimik, 1996a) |||
References

Esyunin S L, Efimik V E (1996a) Catalogue of the spiders (Arachnida, Aranei) of the Urals. KMK Scientific Press, Moscow, 228 pp. pdf

Marusik Y M (1988a) New species of spiders (Aranei) from the Upper Kolyma. Zoologicheskiĭ Zhurnal 67: 1469-1482 pdf

WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.5.2026) doi: 10.24436/2 pdf

Updates
30-10-2025 Distribution update Detail
25-09-2014 Image insert