Arctilaira jamalensis (Eskov, 1981)
Description
Male
Pedipalp: retrolateral margin of tibia with tooth (spine) in apical part. Prosoma yellow-brown. Prosoma length 1.28-1.35 mm. Chelicerae dark yellow, promargin with 5 large, retromargin with 4 small teeth. Legs yellow-brown, TmI 0.68. Opisthosoma light grey.
Body length male: 3.0-3.3 mmFemale
Colouration as in males. Prosoma length: 1.30-1.35 mm.
Body length female: 2.6-3.2 mmDistribution
Phenology
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Figures
Pedipalp, prolateral view
(Tanasevitch & Marusik 2026)
Pedipalp, retrolateral view
(Tanasevitch & Marusik 2026)
Pedipalp, retrolateral view
(Marusik & Tanasevitch 2003)
Apical part of bulbus, retrolateral view
(Marusik & Tanasevitch 2003)
Embolic division, ventral view
(Marusik & Tanasevitch 2003)
Embolic division
(Tanasevitch & Marusik 2026)
Embolic division
(Tanasevitch & Marusik 2026)
Palpal tibia, prolateral view
(Marusik & Tanasevitch 2003)
Prosoma, lateral view
(Tanasevitch & Marusik 2026)
Leg I, prolateral view
(Tanasevitch & Marusik 2026)
Leg I, retrolateral view
(Tanasevitch & Marusik 2026)
Epigyne, posterior view
(Marusik & Tanasevitch 2003)
Epigyne
(Tanasevitch & Marusik 2026)
Epigyne
(Tanasevitch & Marusik 2026)
Epigyne, variation, posterior view
(Marusik & Tanasevitch 2003)
Distribution List
References
Marusik Y M, Tanasevitch A V (2003) Two new erigonine spiders (Aranei: Linyphiidae) from mountains of south Siberia. Arthropoda Selecta 11: 159-165 
Tanasevitch A V, Marusik Y M (2026) Reassessment of the spider genus Hilaira Simon, 1884. I. Revalidation of the genus Arctilaira Chamberlin, 1921 (Aranei: Linyphiidae). Invertebrate Zoology 23: 114-135
WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (13.2.2026) doi: 10.24436/2