Nesticidae  Simon, 1894 / Typhlonesticus  Kulczyński, 1914   8 species

Typhlonesticus idriacus (Roewer, 1931)

Description
Male

Close to N. cellulanus. Prosoma 1.4 mm long. Paracymbium distally forked.

Body length male: 3.2 mm
Female

Close to N. cellulanus. Prosoma 2.4 mm long.

Body length female: 6.1 mm
Additional information

In caves, in small areas in southeast Alp region. Altitude up to 1020 m.

Troglobiont species (Mammola et al., 2022)

Distribution
  Presence
  No data
Global distribution (WSC 2026): Alps (Austria, Italy, Slovenia)
Figures
Distribution List
Austria   (Thaler, 1981b) ||| Italy   (Isaia et al., 2025) ||| Slovenia   (Kostanjšek & Kuntner, 2015; Kostanjšek, 2010) |||
References

Brignoli P M (1975a) Ragni d'Italia XXV. Su alcuni ragni cavernicoli dell'Italia settentrionale (Araneae). Notiziario del Circolo Speleologico Romano 20: 7-39 pdf

Isaia M, Nicolosi G, Infuso A, Ribera C (2023b) Two new subterranean Typhlonesticus (Araneae: Nesticidae) from the Alps with notes on their ecology, distribution and conservation. Arthropod Systematics & Phylogeny 81: 801-818 pdf

Isaia M, Tolve M, Pantini P (2025) Araneae.it: 2.0: the new updated version of the digital catalog of the Italian spiders and other arachnids (Arachnida: Araneae, Opiliones, Scorpiones, Pseudoscorpiones, Palpigradi, Solifugae). Fragmenta Entomologica 57: 197-204 pdf

Kostanjšek R (2010) A contribution to the Slovenian spider fauna – I. Natura Sloveniae 12: 23-33 pdf

Kostanjšek R, Kuntner M (2015) Araneae Sloveniae: a national spider species checklist. ZooKeys 474: 1-91 pdf

Mammola S, Pavlek M, Huber B A, Isaia M, Ballarin F, Tolve M, Čupić I, Hesselberg T, Lunghi E, Mouron S, Graco-Roza C, Cardoso P (2022) A trait database and updated checklist for European subterranean spiders. Scientific Data 9(236): 1-13 pdf

Pesarini C (unpubl.)

Thaler K (1981b) Über Nesticus idriacus Roewer 1931 (Arachnida: Araneae: Nesticidae). Senckenbergiana Biologica 61: 271-276 pdf

WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.5.2026) doi: 10.24436/2 pdf

Updates
07-11-2023 Image insert
25-03-2023 Distribution update Detail