Theridiidae  Sundevall, 1833 / Theonoe  Simon, 1881   4 species

Theonoe minutissima  (O. P.-Cambridge, 1879)

Description
Male

Palp with very broad and long tibia, that covers one half of bulbus. Palp: cymbium with a long distal process. Prosoma brown, with fine, dark margin. Prosoma 0.4 mm long. Sternum brown, rounded posteriorly, with fine, dark margin. Chelicerae brown. Legs brown. Opisthosoma spheroidal, blackish. Similar to female, but dorsal impressed dots on opisthosoma larger and more visible.

Body length male: 1-1.2 mm
Female

Epigyne marked by 2 small depressions, hardly visible. Palp: claw on tarsus not pectinate. Prosoma 0.4 mm long. Eyes: AME ringed with black, slightly smaller than the rest, lateral eyes contiguous, PME about 2 diameters apart, median ocular quadrangle much wider behind than in front.

Body length female: 1-1.3 mm
Additional information

In very wet moss of bogs, also in block fields, but rarely found because of their small size.

Distribution
  Presence
  No data
Global distribution (WSC 2019): Europe
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
References

Breuss W (2001) Bemerkenswerte Spinnen aus Vorarlberg (Österreich) - I (Arachnida: Araneae: Lycosidae, Theridiidae, Mysmenidae, Gnaphosidae, Salticidae). Ber Nat - Med Ver Innsbruck 88: 183-193

Cera I (2018) The checklist of Latvian spiders (Arachnida: Araneae). Environmental and Experimental Biology 16: 139-152 pdf

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

Le Peru B (2011) The spiders of Europe, a synthesis of data: Volume 1 Atypidae to Theridiidae. Mémoires de la Société Linnéenne de Lyon 2: 1-522 pdf

Locket G H, Millidge A F (1953) British Spiders 2. Ray Soc London

Løvbrekke H (unpubl.)

Pantini P, Isaia M (2018) Checklist of the Italian spiders (version June 2018). online at http://www.museoscienzebergamo.it/web/index.php?option=com_content&view=category&layout=blog&id=96&Itemid=94 pdf

Roberts M J (1995) Spiders of Britain and Northern Europe. Collins Field Guide Bath

Thaler K, Knoflach B (2000) Das Weibchen von Theonoe sola Thaler & Steinberger, 1988 (Arachnida: Araneae: Theridiidae). Ber Nat - Med Ver Innsbruck 87: 159-164

Thaler K, Steinberger K-H (1988) Zwei neue Zwerg-Kugelspinnen aus Österreich (Arachnida: Aranei, Theridiidae). Rev Suisse Zool 95: 997-1004

Wiehle H (1937) Spinnentiere oder Arachnoidea, VIII. 26: Familie Theridiidae oder Haubennetzspinnen (Kugelspinnen). Tierwelt Deutschlands 33

World Spider Catalog (2019) World Spider Catalog, version 20.0. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.01.2019) doi: 10.24436/2

Updates
23-01-2017 Image insert