Resources:
Theridiidae  Sundevall, 1833 / Robertus  O. Pickard-Cambridge, 1879   19 species

Robertus cantabricus  Fage, 1931

Description
Male

Unknown.

Female

Epigyne: chitinised plate nearly 1.5 times as long as wide, atrium near the anterior margin, widely apart from the epigastric furrow. Colouration as in R. mazaurici. Eyes entirely depigmented, whitish, AME one diameter apart, and 1.5 diameters from ALE, ALE twice as large as AME, posterior eyes equal in size, equidistant, nearly 2 diameters apart.

Body length female: 4 mm
Additional information

Only one female known. In cave.

Troglophile species (Mammola et al. 2018)

Distribution
  Presence
  No data
Global distribution (WSC 2020): Spain
Figures
Distribution List
Spain   (Branco et al., 2019) |||
References

Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae).
[N.B.: few records from this paper are not taken over and not commented] Zootaxa 4614: 201-254 pdf

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 www.european-arachnology.org

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 (2020) World Spider Catalog. Version 21.0. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.03.2020) doi: 10.24436/2 pdf

Updates
24-06-2014 Image insert