Theridiidae  Sundevall, 1833 / Theridula  Emerton, 1882   3 species

Theridula gonygaster  (Simon, 1873)


Palp: embolus corkscrew-shaped. Prosoma yellow-white, 0.91 mm long. Opisthosoma: pattern as in female or dark unicolored.

Body length male: 1.3-1.7 mm

Epigyne with 2 distinct large openings in a depression. Prosoma unicolored black or with broad black median band and brighter sides, 0.6-0.74 mm long. Legs yellow-white. Opisthosoma black with large white spots, rhomboidal, wider than long, sometimes posteriorly with a median dorsal tubercle.

Body length female: 3-3.5 mm
Additional information

In cereal fields. This species of Central and South American origin is not native to Europe (alien species). It had been introduced to Europe at least once and did establish.

  No data
Global distribution (WSC 2019): Central and South America, Caribbean. Introduced to Europe, Congo, Madagascar, Seychelles, Georgia, China, Japan
 male  female

Hänggi A, Stäubli A, Heer X, Trivellone V, Pollini Paltrinieri L, Moretti M (2014) Eleven new spider species (Arachnida: Araneae) for Switzerland discovered in vineyards in Ticino - What are possible reasons? Mitt schweiz Ent Ges 87: 215-228

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

Kostanjšek R (2010) A contribution to the Slovenian spider fauna – I. Natura Sloveniae 12: 23-33 pdf

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. Mémoires de la Société Linnéenne de Lyon 2: 1-522 pdf

Lecigne S (2018b) Récits de chasses aranéologiques récentes dans plusieurs départements de France. Redécouverte de Philodromus buchari Kubcová, 2004 (Araneae: Philodromidae) et confirmation de la présence de Theridion harmsi Wunderlich, 2011 (Araneae: Theridiidae). Nieuwsbrief van de Belgische Arachnologische Vereniging 33: 59-99 pdf

Otto S (2017) Caucasian spiders. A faunistic database on the spiders of the Caucasus Ecoregion. Database version 08.2017. Internet:

Pantini P, Isaia M (2018) Checklist of the Italian spiders (version June 2018). online at pdf

Saaristo M I (2006) Theridiid or cobweb spiders of the granitic Seychelles islands (Araneae, Theridiidae). Phelsuma 14: 49-89

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

20-09-2018 Image insert
04-07-2017 Distribution update Old value
03-02-2017 Image insert
21-03-2015 Datasheet update Old value
05-01-2015 Distribution update Old value
28-04-2014 Image insert