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Thomisidae  Sundevall, 1833 / Xysticus  C. L. Koch, 1835   106 species

Xysticus brevidentatus  Wunderlich, 1995

Description
Male palp with 2 tegular apophyses, lateral one bears a characteristic crest-like bulge on prolateral side and additionally a strongly sclerotised, slightly serrated process. Median apophysis T- or hammer-shaped with broad lateral appendix. Tibial apophysis bipartite, ventral apophysis right-angled with transverse distal edge, additionally with tiny process on prolateral distal end. Retrolateral apophysis massive and club-shaped. Embolus characteristically elongated and massive. Epigyne with median septum flanked with plates on both sides, very variable. Vulva with spirally twisted entrance duct. Prosoma dorsally dark to brown with white U-shaped pattern, eye field yellow to cream-coloured. Sternum longish oval, cream-coloured with yellow-brown margin. Chelicerae brown, median with cream-coloured band, frontally spined. Female proximally brown, distally cream-coloured. Legs brown, proximally yellow-brown with median, cream-coloured longitudinal stripe dorsally and ventrally. Females partly with dark spots or rings on femur. Opisthosoma dorsally with white margin enclosing an oval light brown field with white folium. Spinnerets light brown to brown. Body length male: 4.0-4.7 mm
Body length female: 6.3-7.4 mm

Frequency: Very rarely found

Distribution
  Presence
  No data
Global distribution (WSC 2018): Italy, Balkans
Figures
References

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

Jantscher E (2003) Xysticus brevidentatus (Thomisidae): further records and first description of the female. J Arachnol 31: 363-370

Pantini P, Isaia M (2017) Checklist of the Italian spiders (version May 2017). online at http://www.museoscienzebergamo.it/web/index.php?option=com_content&view=category&layout=blog&id=96&Itemid=94 pdf

World Spider Catalog (2018) World Spider Catalog, version 19.5. Natural History Museum Bern, online at http://wsc.nmbe.ch (15.07.2018) doi: 10.24436/2