Segestriidae  Simon, 1893 / Segestria  Latreille, 1804   9 species

Segestria florentina  (Rossi, 1790)


Palp : the embolus is shorter than in S. senoculata, and not bifurcal. Palp with blunt tip of bulbus. Prosoma black. Sternum red-brown to dark brown-black. Metatarsus I laterally with one pair of spines. Opisthosoma black, sometimes appearing grey due to bright hairs.

Body length male: 10-15 mm

Sternum reddish-brown to dark brown, as coxa. Clypeus as wide as or wider than diameter of anterior lateral eyes. Chelicerae with a metallic green sheen. Leg I black, legs II, III and IV reddish-brown, without annulations in adults, metatarsus I with one short median ventral spine at apex, one pair of ventrolateral spines, and close to the pair a single median spine. Opisthosoma: in adults, uniform blackish-brown with a purplish sheen, dorsally a lobed band scarcely distinct, in juveniles the opisthosoma is lighter and the dorsal band much more distinct.

Body length female: 14-22 mm
Additional information

Juveniles of S. florentina look like adults of S. bavarica. In forests, under barks and stones, rock crevices, stone walls, semi-dry grasslands, littoral, under shingle, in houses.

  Not established
  No data
Global distribution (WSC 2020): Europe to Georgia. Introduced to Brazil, Uruguay, Argentina
 male  female
Adults of both sexes in spring, summer and autumn.
Distribution List
Algeria   ( no references ) ||| Andorra   ( no references ) ||| Belgium   ( no references ) ||| Bulgaria   ( no references ) ||| Croatia   ( no references ) ||| Cyprus   ( no references ) ||| Egypt   ( no references ) ||| France   ( no references ) ||| France / Corsica   ( no references ) ||| Georgia   ( no references ) ||| Germany   ( no references ) ||| Greece   ( no references ) ||| Greece / Crete   ( no references ) ||| Hungary   ( no references ) ||| Ireland   ( no references ) ||| Italy   ( no references ) ||| Italy / Sardinia   ( no references ) ||| Italy / Sicily   ( no references ) ||| Montenegro   ( no references ) ||| Morocco   ( no references ) ||| Netherlands   ( no references ) ||| North Macedonia   ( no references ) ||| Portugal   ( no references ) ||| Romania   ( no references ) ||| Serbia   ( no references ) ||| Slovakia   ( no references ) ||| Slovenia   ( no references ) ||| Spain   ( no references ) ||| Spain / Balearic Islands   ( no references ) ||| Switzerland   ( no references ) ||| Tunisia   ( no references ) ||| Turkey (Asia)   ( no references ) ||| Ukraine   ( no references ) ||| United Kingdom   ( no references ) |||

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Bosmans R, Van Keer J, Russell-Smith A, Hadjiconstantis M, Komnenov M, Bosselaers J, Huber S, McCowan D, Snazell R, Decae A, Zoumides C, Kielhorn K-H, Oger P (2019c) Spiders of Cyprus (Araneae). A catalogue of all currently known species from Cyprus. Newsletter of the Belgian Arachnological Society 34, Suppl. 1: 1-173 pdf

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

Brignoli P M (1976b) Ragni d'Italia XXIV. Note sulla morfologia dei genitali interni dei Segestriidae e cenni sulle specie italiane (Araneae). Fragm Ent (Roma) 12: 19-62

Danışman T, Kunt K B, Özkütük R S (2019) The checklist of the spiders of Turkey. Version 2019 [last updated 1 June 2019], online at

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Helsdingen P J van (2010a) Araneae. In: Fauna Europaea Database (Version 2010.1), online at

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

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Nolan M (2008) First records of three spider species in Ireland (Araneae): Glyphesis cottonae (La Touche), Mioxena blanda (Simon) (Linyphiidae) and Segestria florentina (Rossi) (Segestriidae). Bulletin of the Irish Biogeographical Society 32: 132-141 pdf

Otto S (2019) Caucasian spiders. A faunistic database on the spiders of the Caucasus Ecoregion. Database version 10.2019. Internet:

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

Roberts M J (1995) Spiders of Britain and Northern Europe. Collins Field Guide Bath

World Spider Catalog (2019) World Spider Catalog, version 20.5. Natural History Museum Bern, online at (20.09.2019) doi: 10.24436/2

04-05-2017 Distribution update Detail