Philodromidae  Thorell, 1869 / Thanatus  C. L. Koch, 1837   37 species

Thanatus firmetorum  Muster & Thaler, 2003


Bulbus with small tegular apophysis. Embolus massive, tapering towards tip, with dorsal keel. Prosoma dark brown without median and lateral bands, sometimes with yellowish heart-shaped central spot. Sternum brown. Legs brown. Chelicerae yellow-brown. Opisthosoma grey, dorsally with cardiac mark. Spinnerets yellowish grey.

Body length male: 4.55-5.1 mm

Epigyne broad, central division wider than long. Colouration as in males. Legs brown, sometimes with black spots. Femur dorsally with 2 converging yellow stripes.

Body length female: 6.8-7.5 mm
Additional information

endemic species of the Alps, in scree above timberline, 2000-3000 m a.s.l.

  No data
Global distribution (WSC 2024): Switzerland, Germany, Austria, Italy
 male  female
Distribution List

"No references" does not mean that the species does not occur in this country, but that we have not yet inserted the reference for it. We are working on it.

Austria   (Muster & Thaler, 2003) ||| Germany   (Muster & Thaler, 2000) ||| Italy   (Pantini & Isaia, 2019) ||| Switzerland   (Hänggi & Stäubli, 2012) |||

Hänggi A, Stäubli A (2012) Nachträge zum „Katalog der schweizerischen Spinnen“: 4. Neunachweise von 2002 bis 2011. Arachnologische Mitteilungen 44: 59-76 pdf

Muster C, Thaler K (2000) Das Männchen von Zelotes zellensis Grimm (Araneae: Gnaphosidae). Revue Suisse de Zoologie 107: 579-589 pdf

Muster C, Thaler K (2003) The Thanatus striatus species group in the eastern Alps, with description of Thanatus firmetorum sp. n. (Araneae: Philodromidae). Bulletin of the British Arachnological Society 12: 376-382 pdf

Pantini P, Isaia M (2019) the online catalog of Italian spiders, with addenda on other arachnid orders occurring in Italy (Arachnida: Araneae, Opiliones, Palpigradi, Pseudoscorpionida, Scorpiones, Solifugae). Fragmenta Entomologica 51: 127-152 pdf

WSC (2024) World Spider Catalog. Version 25.0. Natural History Museum Bern, online at (22.01.2024) doi: 10.24436/2 pdf

23-02-2021 Distribution update Detail