Xysticus erraticus (Blackwall, 1834)
Description
Male palp with robust lateral tegular apophysis, passing horizontally, directed prolaterally. Median tegular apophysis small, with short shaft. Tibial apophysis lies ventrally in the middle and is broad basally, but narrows toward the tip, pointing toward apical and retrolateral direction respectively. The second apophysis originates retrolaterally. It is broad, robust and has a cone-shaped process. Embolus with knob-like thickened tip. Epigyne with characteristic hood-shaped anterior part, lateral parts arranged semicircularly, often plugged with dark glandular secretion. Vulva elongated with detached receptacula. Prosoma sandy to brown, with vague median stripe and 2 broad lateral stripes, eye region bright with distinct black-blue and white background of eyes. Chelicerae brown, and beige patterned, with one robust spine on each chelicera. Legs sandy, to brown. Femur and patella I-II dark brown, red-brown or brown-black. Opisthosoma very bright (almost white sometimes) with dark brown-black spots. Males: dark brown-black, with cream-coloured pattern.
Body length male: 4-5 mmBody length female: 6-8 mm
Additional information
In low vegetation, often under stones or in heathland and semi-dry meadows, occurring from lowland to mountain region
Distribution
Phenology
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Figures
Pedipalp, ventral view
(Brændegaard 1966)
Pedipalp, ventral view
(Roberts 1995)
Pedipalp, ventral view
(Locket & Millidge 1951)
Pedipalp, ventral view
(Jantscher 2001a)
Pedipalp, ventral view
(Jantscher 2001a)
Pedipalp, retrolateral view
(Heimer & Nentwig 1991)
Pedipalp, retroventral view
(Jantscher 2001a)
Pedipalp, ventral view
(Løvbrekke unpubl.)
Tip of embolus, ventral view
(Jantscher 2001a)
Palpal tibia, retrolateral view
(Løvbrekke unpubl.)
Prosoma, dorsal view
(Løvbrekke unpubl.)
Epigyne
(Roberts 1995)
Epigyne
(Brændegaard 1966)
Epigyne
(Locket & Millidge 1951)
Epigyne
(Jantscher 2001a)
Epigyne
(Jantscher 2001a)
Epigyne
(Løvbrekke unpubl.)
Vulva
(Heimer & Nentwig 1991)
Vulva, dorsal view
(Jantscher 2001a)
Vulva, dorsal view
(Jantscher 2001a)
Vulva
(Løvbrekke unpubl.)
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.
References
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Blagoev G, Deltshev C, Lazarov S, Naumova M (2018) The spiders (Araneae) of Bulgaria. Version: August 2018. National Museum of Natural History, Bulgarian Academy of Sciences. Online at http://www.nmnhs.com/spiders-bulgaria/ (accessed on 10.9.2018)
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Brændegaard J (1966) Edderkopper: Eller Spindlere I Danmarks Fauna 72: 1-224
Cera I (2018) The checklist of Latvian spiders (Arachnida: Araneae). Environmental and Experimental Biology 16: 139-152
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Grbac I, Katušić L, Lukić M (2019) Catalogue of spiders (Araneae) deposited in the Croatian Natural History Museum. Natura Croatica 28: 185-269
Heimer S, Nentwig W (1991) Spinnen Mitteleuropas. Paul Parey Berlin
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Jantscher E (2001a) Revision der Krabbenspinnengattung Xysticus C.L. Koch, 1835 (Araneae, Thomisidae) in Zentraleuropa. Dissertation, Univ. Graz, 328 pp., 81 pls.
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Løvbrekke H (unpubl.)
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