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Linyphiidae  Blackwall, 1859 / Erigone  Audouin, 1826   27 species

Erigone svenssoni  Holm, 1975

WSC LSID urn:lsid:nmbe.ch:spidersp:010512

Key to genera | Key to species

Description

Tibia of male palpal with strongly projecting apophysis. Epigyne with transverse folds on entire length. Prosoma dark red-brown, black patterned. Sternum black. Legs light reddish brown. Opisthosoma dark grey.

Body length male: 3.1 mm
Body length female: 2.4-3.4 mm
Additional information

In fens

The species is found in the wettest parts of bogs and fens, usually in areas of exposed mud and detritus without vegetation cover where it spins its web over small depressions in the mud surface. May easily be overlooked.

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2024): Scandinavia, Russia (Europe to West Siberia)
Figures
species

male Pedipalp
(Holm 1975)

species

male Pedipalp, retrolateral view
(Løvbrekke unpubl.)

species

male Pedipalp with tibia and patella, retrolateral view
(Tanasevitch 2021)

species

male Embolus
(Holm 1975)

species

male Embolic division, prolateral view
(Tanasevitch 2021)

species

male Palpal tibia, dorsal view
(Løvbrekke unpubl.)

species

male Prosoma, lateral view
(Holm 1975)

species

female Epigyne
(Holm 1975)

species

female Epigyne, ventral view
(Aakra et al. 2016)

species

female Epigyne, retroventral view
(Aakra et al. 2016)

species

female Epigyne
(Morka unpubl.)

species

female Epigyne
(Morka unpubl.)

species

female Vulva
(Holm 1975)

species

female Vulva
(Aakra et al. 2016)

species

female Vulva, dorsal view
(Løvbrekke unpubl.)

species

female Vulva, ventral view
(Løvbrekke unpubl.)

species

female Vulva, dorsal view
(Morka unpubl.)

species

female Vulva, dorsal view
(Morka unpubl.)

species

Chelicerae, ventral view
(Holm 1975)

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.

Norway   (Aakra et al., 2016) ||| Russia, Northern   (no references) ||| Sweden   (Kronestedt, 2001) |||
References

Aakra K, Morka G H, Antonson A, Farlund M, Wrånes R E, Frølandshagen R, Løvbrekke H, Furuseth P, Fjellberg A, Lemke M, Pfliegler W P, Andersen S, Olsen K M, Aadland B, Berggren K (2016) Spiders new to Norway (Arachnida, Araneae) with ecological, taxonomical and faunistic comments. Norwegian Journal of Entomology 63: 6-43 pdf

Holm Å (1975) A new species of the genus Erigone Sav. & Aud. (Araneae: Erigonidae) from Swedish Lapland. Entomologisk Tidskrift 96: 17-23 pdf

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

Løvbrekke H (unpubl.)

Morka G H (unpubl.)

Tanasevitch A V (2021) On the Peruvian Erigone palustris Millidge, 1991, with notes on the psychrophila-species group (Arachnida: Araneae). Revue Suisse de Zoologie 128: 375-379 pdf

WSC (2024) World Spider Catalog. Version 25.0. Natural History Museum Bern, online at http://wsc.nmbe.ch (22.01.2024) doi: 10.24436/2 pdf

Updates
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