Linyphiidae  Blackwall, 1859 / Centromerus  Dahl, 1886   64 species

Centromerus arcanus  (O. P.-Cambridge, 1873)


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
  No data
Global distribution (WSC 2019): Greenland, Europe, Russia (Europe to Middle Siberia)
 male  female
mostly in winter

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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

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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

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

World Spider Catalog (2019) World Spider Catalog, version 20.0. Natural History Museum Bern, online at (20.01.2019) doi: 10.24436/2

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

30-06-2017 Datasheet update Old value
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