Theridiidae  Sundevall, 1833 / Theridion  Walckenaer, 1805   45 species

Theridion betteni  Wiehle, 1960

Description

Conductor narrow, ± bent rectangularly. Epigyne with clearly visible copulatory opening, epigynal groove shallow. Prosoma yellowish-brown, tinged with black, eye region darker. Sternum brown, sometimes almost black. Chelicerae brown, sometimes almost black. Legs yellow-grey, annulated with dark brown. Opisthosoma dorsally with longitudinal band, otherwise very variable, mostly spotted brown, ventrally dark brown with white spots posterior to the epigastric furrow.

Body length male: 2.4-3 mm
Body length female: 2.6-3.8 mm
Additional information

In intensely sunny crevices and horizontal mural chinks

Frequency: Rarely found

Distribution
  Presence
  No data
Global distribution (WSC 2018): Europe, Turkey
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
References

Bayram A, Kunt K B, Danişman T (2017) The checklist of the spiders of Turkey. Version 2017 [last updated 11 January 2017], online at http://www.spidersofturkey.info

Blagoev G, Deltshev C, Lazarov S, Naumova M (2017) The spiders (Araneae) of Bulgaria. Version: October 2017. National Museum of Natural History, Bulgarian Academy of Sciences. Online at http://www.nmnhs.com/spiders-bulgaria/ (accessed on 12.10.2017)

Breitling R (2018) Eric Duffey's spider collection in the Manchester Museum – an update. Newsletter of the British Arachnological Society 141: 5-9 pdf

Heimer S, Nentwig W (1991) Spinnen Mitteleuropas. Paul Parey Berlin pdf

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

Helsdingen P J van, IJland S, Komnenov M (2018) Inventory of the spiders (Araneae) of the border region of northern Greece with Albania and FYR Macedonia. Nieuwsbrief SPINED 37: 5-23 pdf

Komnenov M (2014) Spider fauna of the Osogovo Mt. Range, Northeastern Macedonia. Fauna Balkana 2: 1-267

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

Le Peru B (2011) The spiders of Europe, a synthesis of data: Volume 1 Atypidae to Theridiidae. Mém Soc Linn Lyon 2: 1-522

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

Roberts M J (1998) Spinnengids. Tirion Natuur Baarn, Netherlands

Thaler K (1966) Fragmenta Faunistica Tirolensia (Diplopoda, Arachnida). Ber Nat - Med Ver Innsbruck 54: 151-157

Vanuytven H (2014) Theridion asopi n. sp., a new member of the Theridion melanurum group (Araneae: Theridiidae) in Europe. Arachnology 16: 127-134

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

Wunderlich J (2011a) Extant and fossil spiders (Araneae). Heutige und fossile Spinnen. Beitr Araneol 6: 1-640

Updates
16-04-2018 Image insert
14-04-2018 Distribution update Old value
17-03-2018 Distribution update Old value
05-08-2014 Image insert
11-03-2014 Image insert