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

Robertus cardesensis  Dresco, 1959




Prosoma 1.5 mm long. Prosoma pigmented, eyes ringed with black. Eyes: AME more than one diameter apart and from ALE, posterior eyes all 1.5 PME diameter apart, AME 1.7 diameter from PME. Chelicerae with one tooth on posterior margin, and 3 teeth on anterior margin. Legs: colouration as prosoma. Opisthosoma white, with sparse hairs.

Additional information

Only one female known. In cave.

Troglophile species (Mammola et al. 2018)

  No data
Global distribution (WSC 2020): Spain
Distribution List
Spain   ( no references ) |||

Dresco E (1959b) Sur quelques espèces du genre Robertus (Araneae, Theridiidae). Description de R. alpinus et R. cardesensis spp. nov. Bull Mus natn Hist nat Paris 31: 242-247

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

24-06-2014 Image insert