Linyphiidae  Blackwall, 1859 / Centromerus  Dahl, 1886   64 species

Centromerus paradoxus  (Simon, 1884)


Palp: Patella with robust spine which is a little longer than patella. Tibia with a much longer but thinner spine. Lamella is a large and arched sclerite, incised distally. Lateral face of chitinous basal part of the median membrane is densely denticulated.


Epigyne: epigynal depression very large, occupying whole epigastric area. Anterior border semicircular, with short and wrinkled median septum. Scape with parallel borders, enlarged, with large openings. Median plate large and roundish, lateral plates slightly larger than median plate. Spermathecae elongated and bent.

Body length female: 1.8 mm
Additional information

Troglophile species (Mammola et al. 2018)

Character states from linyphiid key
  No data
Distribution comment: Omitted from the Italian checklist by Pantini & Isaia (2015)
Global distribution (WSC 2019): Western Mediterranean
 male  female

Bosmans R (2006a) Contribution to the knowledge of the Linyphiidae of the Maghreb. Part XI. Miscellaneous linyphiid genera and additions (Araneae: Linyphiidae: Linyphiinae). Bull Annls Soc r belge Ent 141: 125-161

Dresco E (1952) Remarques sur les Centromerus du groupe paradoxus et description de deux espèces nouvelles. Notes biospéol 7: 95-100

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

Mammola S, Cardoso P, Ribera C, Pavlek M, Isaia M (2018b) A synthesis on cave-dwelling spiders in Europe. Zoological Systematics and Evolutionary Research 56: 301-316 pdf

Pantini P, Isaia M (2018) Checklist of the Italian spiders (version June 2018). online at pdf

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

28-09-2016 Datasheet update Old value
01-04-2014 Image insert
18-02-2014 Image insert