Theridiidae  Sundevall, 1833 / Robertus  O. Pickard-Cambridge, 1879   19 species

Robertus kuehnae  Bauchhenss & Uhlenhaut, 1993

Description

Bulbus laterally with apophysis. Epigyne inconspicuous, on a bulge of epigastric furrow. Entrance ducts approximately as long as diameter of receptacula seminis. Prosoma yellowish orange-brown, eyes relatively small. Sternum yellowish brown. Chelicerae yellowish brown. Opisthosoma grey.

Body length male: 1.5-1.7 mm
Body length female: 1.5-1.7 mm
Additional information

Lives probably in stone crevices and mammal dens in dry and warm meadows

Frequency: rarely found as yet

Distribution
  Presence
  No data
Global distribution (WSC 2021): Belgium, Switzerland, Germany, Austria
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
Distribution List
Austria   (no references) ||| Belgium   (no references) ||| Germany   (no references) ||| Switzerland   (no references) |||
References

Bauchhenss E, Uhlenhaut H (1993) Robertus kuehnae n.sp., eine neue Kleintheridiide aus Mitteleuropa (Arachnida, Araneae, Theridiidae). Entomologische Nachrichten und Berichte 37: 25-28 pdf

Knoflach B (1992) Neue Robertus-Funde in den Alpen: R. mediterraneus Eskoiv und Robertus sp.. Berichte des Naturwissenschaftlich-Medizinischen Vereins in Innsbruck 79: 161-171 pdf

WSC (2021) World Spider Catalog. Version 22.0. Natural History Museum Bern, online at http://wsc.nmbe.ch (29.05.2021) doi: 10.24436/2 pdf

Wunderlich J (1973b) Zur Spinnenfauna Deutschlands, XV. Weitere seltene und bisher unbekannte Arten sowie Anmerkungen zur Taxonomie und Synonymie (Arachnida: Araneae). Senckenbergiana Biologica 54: 405-428 pdf

Updates
18-12-2014 Image insert