Dysderidae  C. L. Koch, 1837 / Dysdera  Latreille, 1804   160 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. 2017)

  No data
Global distribution (WSC 2018): Spain
 male  female

Fage L (1931) Araneae, 5e série, précédée d'un essai sur l'évolution souterraine et son déterminisme. In Biospeologica, LV. Arch Zool expér 71: 91-291

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. Mém Soc Linn Lyon 2: 1-522

Mammola S, Cardoso P, Ribera C, Pavlek M, Isaia M (in press) A synthesis on cave-dwelling spiders in Europe. Zoological Systematics and Evolutionary Research early view

World Spider Catalog (2018) World Spider Catalog. Natural History Museum Bern, online at, version 19.0, accessed on 14.01.2018. doi: 10.24436/2

01-10-2013 Image insert