Linyphiidae  Blackwall, 1859 / Centromerus  Dahl, 1886   68 species

Centromerus arcanus  (O. Pickard-Cambridge, 1873)

Description

Male palp with bipartite basal bulbal apophysis. Paracymbium distally with strongly sclerotised bulge. Epigyne reddish brown, with 2 arc-shaped sclerotised bars near base of scapus. Prosoma light yellow to yellow-brown, with thin black margin, head region darkened blackish. Sternum yellow-brown, tinged with black. Chelicerae yellow-brown. Legs darker than prosoma, sometimes almost red-brown. Opisthosoma light whitish, grey-black.

Body length male: 1.5-2.5 mm
Body length female: 2-2.5 mm
Additional information

in humid moss of forests, mainly in low mountain ranges

Frequency: Frequent

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2020): Greenland, Europe, Russia (Europe to Middle Siberia)
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
mostly in winter
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) ||| Faroe Islands   (Lissner et al., 2016b) ||| Finland   (Koponen et al., 2016) ||| France   (no references) ||| Germany   (no references) ||| Ireland   (no references) ||| Italy   (Pantini & Isaia, 2019) ||| Latvia   (Cera, 2018) ||| Liechtenstein   (no references) ||| Lithuania   (no references) ||| Montenegro   (no references) ||| Norway   (Aakra & Hauge, 2003) ||| Poland   (no references) ||| Romania   (no references) ||| Russia, Central   (no references) ||| Russia, Eastern   (no references) ||| Russia, Kaliningrad Region   (no references) ||| Russia, Northern   (no references) ||| Russia, Western   (no references) ||| Serbia   (no references) ||| Slovakia   (no references) ||| Spain   (Branco et al., 2019) ||| Sweden   (Kronestedt, 2001) ||| Switzerland   (no references) ||| Ukraine   (Polchaninova & Prokopenko, 2019) ||| United Kingdom   (no references) |||
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

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

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

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

Lissner J, Gravesen E (2017) First record of Centromerus arcanus (O. P.-Cambridge, 1873) from Greenland (Araneae, Linyphiidae) Norwegian Journal of Entomology 64: 19-21 pdf

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. Vol. II. Ray Society, London, 449 pp. pdf

Løvbrekke H (unpubl.)

Miller F (1958a) Beitrag zur Kenntnis der tschechoslovakischen Spinnenarten aus der Gattung Centromerus Dahl. Časopis Československé Společnosti Entomologické 55: 71-91 pdf

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

Wiehle H (1956) Spinnentiere oder Arachnoidea, X. 28: Familie Linyphiidae-Baldachinspinnen. Die Tierwelt Deutschlands 44: 1-337 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

Wunderlich J (1973c) Einige seltene Spinnenarten vom Holoh-See bei Wildbad im Schwarzwald (Arachnida: Araneae). Zoologische Beiträge (N.F.) 19: 393-395 pdf

Updates
30-06-2017 Datasheet update Detail
30-06-2017 Image insert
22-03-2016 Image insert
18-12-2014 Image insert
29-04-2014 Image insert
02-04-2013 Image insert