Thomisidae  Sundevall, 1833 / Xysticus  C. L. Koch, 1835   82 species

Xysticus luctator  L. Koch, 1870


Male palp dark brown. Median bulbal apophysis with 2 tips arranged rectangularly. Tibial apophysis bipartite, massive ventral and inconspicuous retrolateral apophysis. Epigyne with wide-oval epigynal groove, with broad, protruding septum. Vulva with anterior part consisting of 2 funnel-shaped, very dark parts, broadened posteriorly. Prosoma strongly bulged, round. Female: light beige to sandy-brown without distinct pattern, but with 2 dark moon-like spots on posterior margin of prosoma. Male: black-brown, eye field bright, 2 dark brown moon-like spots (sometimes 2 additional bright ones) on posterior margin of prosoma. Sternum longish oval to shield-shaped, brown to light brown with cream spots. Chelicerae brown with bright transverse band and one longer spine (female frontally many short spines). Legs dark brown, contrast-rich with white spots on junction femur/patella, distal leg segments brighter. Females overall with inconspicuous, bright legs. Metatarsus I and II and tibia with strikingly high number of spines. Opisthosoma female: beige, without pattern. Males: brown to dark brown, with thin cream margin and white, interrupted transverse bands in posterior third.

Body length male: 5.9-8.4 mm
Body length female: 7-10 mm
Additional information

from lowland to mountainous level, in habitats with poor vegetation

Frequency: Not frequent

  No data
Global distribution (WSC 2020): Europe, Caucasus, Russia (Europe to South Siberia), Kazakhstan
 male  female
Distribution List
Austria   ( no references ) ||| Azerbaijan   ( no references ) ||| Belarus   ( no references ) ||| Belgium   ( no references ) ||| Bosnia and Herzegovina   ( no references ) ||| Bulgaria   ( no references ) ||| Czechia   ( no references ) ||| Denmark   ( no references ) ||| Estonia   ( no references ) ||| Finland   ( no references ) ||| France   ( no references ) ||| Georgia   ( no references ) ||| Germany   ( no references ) ||| Greece   ( no references ) ||| Hungary   ( no references ) ||| Italy   ( no references ) ||| Moldova   ( no references ) ||| Montenegro   ( no references ) ||| Netherlands   ( no references ) ||| North Macedonia   ( no references ) ||| Poland   ( no references ) ||| Romania   ( no references ) ||| Russia, Central   ( no references ) ||| Russia, Eastern   ( no references ) ||| Russia, Southern   ( no references ) ||| Russia, Western   ( no references ) ||| Serbia   ( no references ) ||| Slovakia   ( no references ) ||| Sweden   ( no references ) ||| Switzerland   ( no references ) ||| Ukraine   ( no references ) ||| United Kingdom   ( no references ) |||

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

14-01-2017 Image insert
09-05-2016 Image insert
01-12-2013 Distribution update Detail