Theridula opulenta (Walckenaer, 1841)
Description
Male
Palp: embolus quite straight. Prosoma 0.79 mm long. Opisthosoma grey to black, usually with one to 5 lighter spots.
Body length male: 1.2-1.7 mmFemale
Epigyne: posterior area heavily sclerotized and dark brown. Prosoma yellow to dark brown, 0.91 mm long. Opisthosoma grey-brown to black, pattern variable, with a central whitish patch, and lateral extensions tipped with black, sometimes pattern as in T. gonygaster. Opisthosoma rhomboidal, wider than long.
Body length female: 1.6-2.6 mmAdditional information
In bushes, dry grasslands and stony areas in mountains.
This species of North American origin is not native to Europe (alien species). It had been introduced to Europe at least once and did establish.
Distribution
Figures
Pedipalp, ventral view
(Levi 1954)
Pedipalp, mesal view
(Levi 1954)
Epigyne, ventral view
(Levi 1954)
Vulva, dorsal view
(Levi 1954)
Chelicera, frontal view
(Levi 1954)
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
Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae). Zootaxa 4614: 201-254 
Le Peru B (2007) Catalogue et répartition des araignées de France. Revue Arachnologique 16: 1-468
Lecigne S, Courtial C, Danflous S, Déjean S, Guerbaa K, Jacquet C, Montagne D, Montardi Y, Villepoux O (2022) De araneis Galliae IV, actualisation du référentiel des araignées de France - troisième note. Révision du statut de certaines espèces de la faune de France. Bulletin de l'Association Française d'Arachnologie 6: 3-38
Levi H W (1954) The spider genus Theridula in North and Central America and the West Indies (Araneae: Theridiidae). Transactions of the American Microscopical Society 73: 331-343
Milosevic B (2002) Aranea – Popis vrsta – Checklist. Hrvatsko entomološko društvo – Inventar entomofaune Hrvatske [Aranea – List of species – Checklist. Croatian Entomological Society – Inventory of Croatian entomofauna].
Otto S (2022) Caucasian spiders. A faunistic database on the spiders of the Caucasus Ecoregion. Database version 02.2022. Internet: caucasus-spiders.info.
Pantini P, Isaia M (2019) Araneae.it: the online catalog of Italian spiders, with addenda on other arachnid orders occurring in Italy (Arachnida: Araneae, Opiliones, Palpigradi, Pseudoscorpionida, Scorpiones, Solifugae). Fragmenta Entomologica 51: 127-152
WSC (2024) World Spider Catalog. Version 25.5. Natural History Museum Bern, online at http://wsc.nmbe.ch (31.10.2024) doi: 10.24436/2