Resources:
Linyphiidae  Blackwall, 1859 / Walckenaeria  Blackwall, 1833   53 species

Walckenaeria clavicornis  (Emerton, 1882)

Description

Tibial apophysis with 2 crossing processes. Epigyne with 2 tongue-shaped plates, reaching far beyond epigastric furrow. Prosoma orange-brown to dark brown with blackish pattern. Legs brown, to orange-brown. Opisthosoma grey-black.

Body length male: 2-2.5 mm
Body length female: 2-2.7 mm
Additional information

In soil crevices with high humidity

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2018): North America, Europe, Russia (European to Far East), China, Mongolia, Japan
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
References

Heimer S, Nentwig W (1991) Spinnen Mitteleuropas. Paul Parey Berlin pdf

Helsdingen P J van (2010a) Araneae. In: Fauna Europaea Database (Version 2010.1), online at www.european-arachnology.org

Lissner J, Jensen J-K, Hansen L J, Simonsen W, Kelduni R, Nissen K (2016b) An updated checklist of spiders (Araneae) of the Faroe Islands. Norwegian Journal of Entomology 63: 197-240 pdf

Locket G H, Millidge A F (1953) British Spiders 2. Ray Soc London

Locket G H, Millidge A F, Merrett P (1974) British Spiders 3. Ray Soc London

Løvbrekke H (unpubl.)

Pantini P, Isaia M (2017) Checklist of the Italian spiders (version May 2017). online at http://www.museoscienzebergamo.it/web/index.php?option=com_content&view=category&layout=blog&id=96&Itemid=94 pdf

Roberts M J (1987) The spiders of Great Britain and Ireland. Volume 2: Linyphiidae and checklist. Harley Books Colchester

Tanasevitch A V (2018) New data on spiders (Aranei) from the Novaya Zemlya Archipelago and Siberian Arctic, Russia. Arthropoda Selecta 27: 69-71 pdf

World Spider Catalog (2018) World Spider Catalog, version 19.5. Natural History Museum Bern, online at http://wsc.nmbe.ch (15.07.2018) doi: 10.24436/2

Updates
25-03-2018 Distribution update Old value
15-12-2017 Image insert
16-10-2013 Distribution update Old value