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Linyphiidae  Blackwall, 1859 / Arctilaira  Chamberlin, 1921   3 species

Arctilaira glacialis (Thorell, 1871)

WSC LSID urn:lsid:nmbe.ch:spidersp:010812

Key to genera | Key to species

Description
Male

Posterior central eyes separated from each other by interval only somewhat larger than their diameter, and the area of the central eyes is a little shorter than broad behind. Clypeus is twice as great as the diameter of the anterior lateral eyes.

Female

Posterior central eyes separated from each other by all interval only somewhat larger than their diameter, and the area of the central eyes is a little shorter than broad behind. Clypeus is twice as great as the diameter of the anterior lateral eyes. Epigyne: The two long, winding ducts from the receptacula seminis have a common opening at the front of the epigyne.

Body length female: 3.5 mm
Distribution
  Presence
  No data
Global distribution (WSC 2026): Svalbard, Russia (Europe to Far North East)
Figures
species

male Pedipalp, ventral view
(Løvbrekke unpubl.)

species

male Pedipalp, retrolateral view
(Løvbrekke unpubl.)

species

male Pedipalp, prolateral view
(Tanasevitch & Marusik 2026)

species

male Pedipalp, retrolateral view
(Tanasevitch & Marusik 2026)

species

male Pedipalp, ventral view
(Tanasevitch & Marusik 2026)

species

male Embolic division
(Tanasevitch & Marusik 2026)

species

male Prosoma, lateral view
(Løvbrekke unpubl.)

species

male Prosoma, lateral view
(Tanasevitch & Marusik 2026)

species

male Leg I, prolateral view
(Tanasevitch & Marusik 2026)

species

male Leg I, retrolateral view
(Tanasevitch & Marusik 2026)

species

female Epigyne
(Holm 1956)

species

female Epigyne
(Løvbrekke unpubl.)

species

female Epigyne, posterior view
(Løvbrekke unpubl.)

species

female Epigyne
(Tanasevitch & Marusik 2026)

species

female Vulva, dorsal view
(Løvbrekke unpubl.)

species

female Vulva
(Fjellberg unpubl.)

species

female Habitus, dorsal view
(Fjellberg unpubl.)

Distribution List

"No references" does not mean that the species does not occur in this country, but that we have not yet inserted the reference for it. We are working on it.

Russia, Northern   (Koponen et al., 1998; Esyunin, 2006) ||| Russia, Novaya Zemlya   (Tanasevitch, 2017b) ||| Svalbard   (Holm, 1958b) |||
References

Esyunin S L (2006) Remarks on the Ural spider fauna (Arachnida: Aranei). 11. New faunistic records. Arthropoda Selecta 14: 329-337 pdf

Fjellberg A (unpubl.) .

Holm Å (1956) Notes on Arctic spiders of the genera Erigone Aud. and Hilaira Sim. Arkiv för Zoologi 9: 453-469 pdf

Holm Å (1958b) The spiders of the Isfjord region of Spitsbergen. Zoologiska Bidrag från Uppsala 33: 29-67 pdf

Koponen S, Marusik Y M, Tanasevitch A V (1998) New data on the spider fauna of the Polar Urals (Aranei). Arthropoda Selecta 6: 109-119 pdf

Løvbrekke H (unpubl.)

Tanasevitch A V (2017b) Spiders (Aranei) of the Novaya Zemlya Archipelago and the Vaygach Island, Russia. Arthropoda Selecta 26: 145-153 pdf

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 pdf

WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (13.2.2026) doi: 10.24436/2 pdf

Updates
28-03-2026 Image insert
20-10-2025 Distribution update Detail
17-07-2025 Distribution update Detail
27-07-2020 Distribution update Detail
24-05-2020 Distribution update Detail
01-01-2020 Image insert
14-12-2017 Distribution update Detail
28-09-2016 Datasheet update Detail
24-06-2014 Distribution update Detail