Dysderidae  C. L. Koch, 1837 / Dysdera  Latreille, 1804   165 species

Dysdera bicornis  Fage, 1931


Coloration as in females.

Body length male: 12 mm

Prosoma and sternum reddish brown, with fine grains. Eyes: posteriors equal in size, anteriors scarcely less than one diameter apart, larger than posteriors. Chelicerae with 3 contiguous teeth and one distal strong tooth. Legs: femur I and II with one spine, femur III with 3 spines, femur IV with about 10 spines, posterior tibia and metatarsus with numerous spines.

Body length female: 12 mm
Additional information

In caves.

Troglophile species (Mammola et al. 2018)

  No data
Global distribution (WSC 2019): Spain
 male  female

Fage L (1931) Araneae, 5e série, précédée d'un essai sur l'évolution souterraine et son déterminisme. In Biospeologica, LV. Archives de Zoologie Expérimentale et Générale 71: 91-291 pdf

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

Le Peru B (2011) The spiders of Europe, a synthesis of data: Volume 1 Atypidae to Theridiidae. Mémoires de la Société Linnéenne de Lyon 2: 1-522 pdf

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

World Spider Catalog (2019) World Spider Catalog, version 20.5. Natural History Museum Bern, online at (20.09.2019) doi: 10.24436/2

01-10-2013 Image insert