Linyphiidae  Blackwall, 1859 / Walckenaeria  Blackwall, 1833   63 species

Walckenaeria atrotibialis  (O. Pickard-Cambridge, 1878)

Description

Male palp with 2 ± equally long tibial apophyses. Anterior margin of median epigynal plate inwardly bent. Prosoma light to red-brown, dark radial stripes. Male: elevated step-like anteriorly, with distinct depression in the middle of dorsal line.

Body length male: 2-2.4 mm
Body length female: 2.2-3 mm

Frequency: relatively rarely found

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2020): North America, Europe, Turkey, Caucasus, Russia (Europe to South Siberia), Kazakhstan, Kyrgyzstan
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
Distribution List
Andorra   (Branco et al., 2019) ||| Austria   (no references) ||| Belarus   (Ivanov, 2013) ||| Belgium   (no references) ||| Czechia   (no references) ||| Denmark   (no references) ||| Estonia   (no references) ||| Finland   (Koponen et al., 2016) ||| France   (no references) ||| Georgia   (Otto, 2020) ||| Germany   (no references) ||| Greece   (no references) ||| Hungary   (no references) ||| Iceland   (Agnarsson, 1996) ||| Ireland   (no references) ||| Italy   (Pantini & Isaia, 2019) ||| Latvia   (Cera, 2018) ||| Liechtenstein   (no references) ||| Lithuania   (no references) ||| Luxembourg   (Hermann, 1998; Kreuels et al., 2019) ||| Moldova   (no references) ||| Netherlands   (no references) ||| Northern Ireland   (no references) ||| Norway   (no references) ||| Poland   (no references) ||| Romania   (no references) ||| Russia, Central   (no references) ||| Russia, Eastern   (no references) ||| Russia, Kaliningrad Region   (no references) ||| Russia, Northern   (no references) ||| Russia, Southern   (Otto, 2020) ||| Russia, Western   (no references) ||| Slovakia   (no references) ||| Slovenia   (Kostanjšek & Kuntner, 2015) ||| Spain   (Branco et al., 2019) ||| Sweden   (no references) ||| Switzerland   (no references) ||| Turkey (Asia)   (Danışman et al., 2019) ||| Ukraine   (Polchaninova & Prokopenko, 2019) ||| United Kingdom   (no references) |||
References

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

Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae).
[N.B.: few records from this paper are not taken over and not commented] Zootaxa 4614: 201-254 pdf

Cera I (2018) The checklist of Latvian spiders (Arachnida: Araneae). Environmental and Experimental Biology 16: 139-152 pdf

Danışman T, Kunt K B, Özkütük R S (2019) The checklist of the spiders of Turkey. Version 2019 [last updated 1 June 2019], online at http://www.spidersofturkey.info pdf

Fjellberg A (unpubl.)

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

Hermann E (1998) Die Spinnen (Araneae) ausgewählter Halbtrockenrasen im Osten Luxemburgs. Bulletin de la Société des naturalistes Luxembourgeois 99: 189-199 pdf

Ivanov V V (2013) The checklist of Belarusian spiders (Arachnida, Araneae). Zoology and Ecology 4: 293-311 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

Kostanjšek R, Kuntner M (2015) Araneae Sloveniae: a national spider species checklist. ZooKeys 474: 1-91 pdf

Kreuels M, Staudt A, Christian S (2019) Die Spinnenfauna von Luxemburg – eine Zusammenstellung der Nachweise aus den Jahren 1906-2018 (Arachnida: Araneae). Bulletin de la Société des naturalistes luxembourgeois 121: 203-230 pdf

Locket G H, Millidge A F (1953) British spiders. Vol. II. Ray Society, London, 449 pp. pdf

Løvbrekke H (unpubl.)

Otto S (2020) Caucasian spiders. A faunistic database on the spiders of the Caucasus Ecoregion. Database version 03.2020. Internet: caucasus-spiders.info.

Pantini P, Isaia M (2019) Araneae.it: the online catalog of Italian spiders, with addenda on other arachnid orders occurring in Italy (Arachnida: Araneae, Opiliones, Palpigradi, Pseudoscorpionida, Scorpiones, Solifugae). http://araneae.it. Fragmenta Entomologica 51: 127-152 pdf

Polchaninova N, Prokopenko E (2019) An updated checklist of spiders (Arachnida: Araneae) of Left-Bank Ukraine. Arachnologische Mitteilungen 57: 60-64 & App pdf

Roberts M J (1987) The spiders of Great Britain and Ireland. Volume 2: Linyphiidae and checklist. Harley Books Colchester, England, 204 pp. pdf

Van Keer J, Van Keer K, De Koninck H, Ramel G (2010) The arachnofauna (Araneae) of wetland Kerkini (Macedonia-Northern Central Greece). Acta Zoologica Bulgarica 62: 141-160 pdf

Wiehle H (1960a) Spinnentiere oder Arachnoidea (Araneae). XI. Micryphantidae-Zwergspinnen. Die Tierwelt Deutschlands 47: 1-620 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
18-03-2020 Distribution insert Detail
06-01-2020 Image insert
04-08-2017 Image insert
16-08-2016 Image insert
24-09-2015 Distribution update Detail
24-06-2014 Image insert