Theridion genistae Simon, 1873
Description
Male
Palp: embolus long and coiled. Prosoma 0.6-0.8 mm long. Characters as in female. Epigastric area not bulging.
Body length male: 1.0-1.6 mmFemale
Prosoma uniform blackish, 0.6 mm long. Sternum blackish, posteriorly wide, coxae IV more than one diameter apart. Chelicerae: promargin without teeth. Legs whitish, with black annulations, tibia IV with one dorsal bristle. Opisthosoma globular, pattern variable, dorsally with a whitish median band, more or less bordered with blackish, laterally and anteriorly with a brownish band, ventrally whitish, with epigastric region blackish, spinnerets surrounded with brownish.
Body length female: 1.4-1.8 mmAdditional information
In dry habitats: cork oak woods, garrigue, heathlands, gorse and dry littoral areas.
Distribution
Phenology
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Figures
Pedipalp, retrolateral view
(Knoflach et al. 2009b)
Pedipalp, ventral view
(Knoflach et al. 2009b)
Pedipalp, prolateral view
(Knoflach et al. 2009b)
Pedipalp
(Brignoli 1967c)
Bulbus, ventral view
(Wunderlich 2021)
Prosoma, lateral view
(Wunderlich 2021)
Epigyne/vulva, ventral view
(Knoflach et al. 2009b)
Epigyne
(Brignoli 1967c)
Vulva, dorsal view
(Knoflach et al. 2009b)
Vulva
(Brignoli 1967c)
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
Benhacene R, Adjami A, Hadjeb A, Kermiche K, Ouakid M L (2023) Bibliographic checklist of the Algerian spider fauna (Araneae). Zootaxa 5352: 301-357 
Bosmans R, Van Keer J, Russell-Smith A, Kronestedt T, Alderweireldt M, Bosselaers J, De Koninck H (2013) Spiders of Crete (Araneae). A catalogue of all currently known species from the Greek island of Crete. Nieuwsbrief van de Belgische Arachnologische Vereniging 28 (Suppl. 1): 1-147
Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae). Zootaxa 4614: 201-254
Brignoli P M (1967c) Notizie sui Theridiidae del Lazio (Araneae). Fragmenta Entomologica 4: 177-197
Cianferoni F, Graziani F, Ceccolini F (2021) Checklist and new records of spiders (Araneae) from Cephalonia and Ithaka Islands (Greece). Biharean Biologist 15: 80-86
Isaia M, Tolve M, Pantini P (2025) Araneae.it: 2.0: the new updated version of the digital catalog of the Italian spiders and other arachnids (Arachnida: Araneae, Opiliones, Scorpiones, Pseudoscorpiones, Palpigradi, Solifugae). Fragmenta Entomologica 57: 197-204
Kmira G, Nasri-Ammar, Petillon J, Bosmans R (2025) Catalog of the spiders of Tunisia (Arachnida: Araneae). Zootaxa 5641: 1-95
Knoflach B, Rollard C, Thaler K (2009b) Notes on Mediterranean Theridiidae (Araneae) - II. ZooKeys 16: 227-264
Le Peru B (2007) Catalogue et répartition des araignées de France. Revue Arachnologique 16: 1-468
WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (13.2.2026) doi: 10.24436/2
Wunderlich J (2021) Few new, rare or special species of spiders from the Algarve, Portugal (Arachnida: Araneae). Beiträge zur Araneologie 14: 3-24