Segestriidae  Simon, 1893 / Ariadna  Audouin, 1826   10 species

Ariadna insidiatrix  Audouin, 1826


Prosoma light brown, with a very thin darker borderline. Prosoma 2.6-3.6 mm long. Sternum light brown, darker on the edges. Eyes nearly equal in size. Clypeus a little wider than eye diameter. Legs uniform light brown, tibia I, II and III with very numerous spines, number greater than 16, but variable, tibia IV without spines or with one small spine, femur I with 3 dorsal and 2 lateral spines, femur II with 4 dorsal and 4 lateral spines, metatarsus I with 4 spines and a lateral apophysis in the middle. Opisthosoma long oval, grey, spinnerets lighter.


Palp short and strong, brownish, with tibia and tarsus black. Prosoma and sternum dark brown. Legs brown, the anteriors darker, tibia I, metatarsus I and II, tarsus I and II almost black, tibia I and II ventrally with 5 pairs of unequal long spines, metatarsus I and II ventrally with 6-7 pairs of unequal long spines. Opisthosoma long and cylindrical, grey brown, dorsally darker and purplish.

Body length female: 6-11 mm
Additional information

Littoral: cliffs and rocks, under stones.

  No data
Distribution comment: Record from Malta may be an undescribed species (Pfliegler et al., 2017)
Global distribution (WSC 2023): Mediterranean
 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.

Algeria   (Bosmans, unpubl.) ||| Egypt   (Bosmans, unpubl.) ||| France  Removed (Le Peru, 2007; Danflous et al., 2020b) ||| France / Corsica  Removed (Le Peru, 2007; Danflous et al., 2020b) ||| Greece   (Bosmans & Chatzaki, 2005) ||| Greece / Crete   (Bosmans & Chatzaki, 2005) ||| Libya   (Bosmans, unpubl.) ||| Morocco   (Bosmans, unpubl.) ||| Portugal   (Branco et al., 2019) ||| Spain   (Branco et al., 2019) ||| Spain / Balearic Islands   (Branco et al., 2019) ||| Tunisia   (Bosmans, unpubl.) ||| Turkey (Asia)   (Danışman et al., 2022) ||| Turkey (Europe)   (Danışman et al., 2022) |||

Bosmans R, Chatzaki M (2005) A catalogue of the spiders of Greece – a critical review of all spider species cited from Greece with their localities. Nieuwsbrief van de Belgische arachnologische Vereniging 20 (2, suppl.): 1-124 pdf

Bosmans R. (unpubl.) Provisional list of spiders of North Africa. Database excerpt Aug. 2019

Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae). Zootaxa 4614: 201-254 pdf

Brignoli P M (1976c) Ragni d'Italia XXIV. Note sulla morfologia dei genitali interni dei Segestriidae e cenni sulle specie italiane (Araneae). Fragmenta Entomologica 12: 19-62 pdf

Danflous S, Déjean S, Guerbaa K, Jacquet C, Lecigne S, Montagne D, Montardi Y, Villepoux O (2020b) De araneis Galliae IV. Actualisation du référentiel des araignées de France – première note. Espèces absentes de France ou mises en nomen dubium. Bulletin de l'Association Française d'Arachnologie 5: 10-32 pdf

Danışman T, Kunt K B, Özkütük R S (2022) The checklist of the spiders of Turkey. Version 2022 [last updated 24 August 2022], online at pdf

Kunt K B, Kaya R S, Özkütük R S, Danişman T, Yağmur E A, Elverici M (2012) Additional notes on the spider fauna of Turkey (Araneae). Turkish Journal of Zoology 36: 637-651 pdf

Le Peru B (2007) Catalogue et répartition des araignées de France. Revue Arachnologique 16: 1-468 pdf

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

Pantini P, Sassu A, Serra G (2013) Catalogue of the spiders (Arachnida Araneae) of Sardinia. Biodiversity Journal 4: 3-104 pdf

Pfliegler W A, Schönhofer A, Niedbała W, Vella P, Sciberras A, Vella A (2017) New records of mites (Acari) and harvestmen (Opiliones) from Malta with a preliminary checklist of Maltese Arachnida. Soil Organisms 89: 85-110 pdf

WSC (2023) World Spider Catalog. Version 24. Natural History Museum Bern, online at (14.02.2023) doi: 10.24436/2 pdf

05-10-2020 Distribution update Detail
05-09-2017 Distribution update Detail
25-06-2013 Distribution update Detail
16-04-2013 Image insert