Agelenidae  C. L. Koch, 1837 / Eratigena  Bolzern, Burckhardt & Hänggi, 2013   20 species

Eratigena herculea  (Fage, 1931)


Eyes very reduced and without pigmentation. Anterior and posterior median eyes barely visible, only 0.02 mm in diameter. Lateral eyes about 0.05 mm in diameter. Opisthosoma cylindrical. Palp: median apophysis protruding, longer than wide, spoon-like, connected to tegulum by a membrane.

Prosoma length: 2.4 mm, prosoma width: 1.8 mm.


Prosoma not darkened. Sternum with a weakly expressed pale median region. Opisthosoma brown-yellowish, only cardiac mark darker. Legs without a pattern. Eyes moderately reduced in size. Epigyne with a distinct posterior sclerite, forming a strongly sclerotized and protruding pocket-like structure.

Additional information

In caves.

Troglobiont species (Mammola et al. 2017)

  No data
Global distribution (WSC 2018): Spain (mainland, Ibiza)

Brignoli P M (1977c) Sur quelques Tegenaria cavernicoles d'Espagne (Araneae, Agelenidae). In Comunicacions del 6è. Simposium d'Espeleologia, Terrassa 1977: 69-71

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

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

Ribera C, Barrientos J A (1986) Sobre algunas tegenarias cavernicolas poco conocidas del Mediterraneo español. Mém Soc r ent Belg 33: 187-197

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

10-05-2016 Datasheet update Old value