Linyphiidae  Blackwall, 1859 / Centromerus  Dahl, 1886   64 species

Centromerus arcanus  (O. P.-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 2018): Greenland, Europe, Russia (Europe to Central Siberia)
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
mostly in winter
Figures
References

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

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

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 2. Ray Soc London

Løvbrekke H (unpubl.)

Miller F (1958a) Beitrag zur Kenntnis der tschechoslovakischen Spinnenarten aus der Gattung Centromerus Dahl. Acta Soc Entomol Cechoslov 55 (1): 71-91

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

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

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

Wunderlich J (1973c) Einige seltene Spinnenarten vom Holoh-See bei Wildbad im Schwarzwald (Arachnida: Araneae). Zool Beitr 19: 393-395

Updates
30-06-2017 Datasheet update Old value
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