Resources:
Linyphiidae  Blackwall, 1859 / Mecynargus  Kulczynski, 1894   11 species

Mecynargus borealis  (Jackson, 1930)

Description
Male

Prosoma: small size and conical elevation of ocular area, fovea trapezoidal. Opisthosoma dark.

Body length male: 1.4 mm
Female

Prosoma evenly rounded, dark yellow brown, veined and streaked with darker Markings. Sternum heart shaped, dark brown, almost black, studded with numerous small round yellow brown spots. Opisthosoma dark brown, studded all over with numerous round yellow brown spots, without pattern. Vulva characteristic.

Prosoma length: 0.5 mm.

Body length female: 1.45 mm
Distribution
  Presence
  No data
Global distribution (WSC 2020): Canada, Northern Europe, Russia (Europe to Middle Siberia)
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
Distribution List
Finland   (Koponen et al., 2016) ||| Iceland   (Agnarsson, 1996) ||| Norway   (Aakra & Hauge, 2003) ||| Russia, Northern   (no references) ||| Svalbard   (Holm, 1958b) ||| Sweden   (Kronestedt, 2001) |||
References

Aakra K, Hauge E (2003) Checklist of Norwegian spiders (Arachnida: Araneae), including Svalbard and Jan Mayen. Norwegian Journal of Entomology 50: 109-129 pdf

Agnarsson I (1996) Íslenskar köngulær Fjölrit Náttúrufræðistofnunar 31: 1-175 pdf

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

Koponen S, Fritzén N R, Pajunen T (2016) Checklist of spiders in Finland (Araneae). 6th version, December 2016, online at http://biolcoll.utu.fi/arach/checklist_of_spiders_in_Finland.htm pdf

Kronestedt T (2001) Checklist of Spiders (Araneae) in Sweden [Preliminary version February 2001] pdf

Løvbrekke H (unpubl.)

Marusik Y M, Koponen S, Makarova O L (2016a) A survey of spiders (Araneae) collected on the arctic island of Dolgiy (69°12′N), Barents Sea. Arachnology 17: 10-24 pdf

World Spider Catalog (2020) World Spider Catalog. Version 21.0. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.03.2020) doi: 10.24436/2 pdf

Updates
24-05-2020 Distribution update Detail