Theridiosoma gemmosum (L. Koch, 1877)
Description
Male palp approximately as large as prosoma, very complex. Epigyne with shallow groove covered by robust chitinous bulge. Prosoma light brown, with fine net-like pattern, eye region darker. Sternum dark brown, slightly brighter medially. Chelicerae brown. Legs brown, sometimes spotted or annulated with black. Opisthosoma irregularly patterned with black, bright areas strikingly shining pearly.
Body length male: 1.5-1.6 mmBody length female: 2-2.3 mm
Additional information
In bog forests, in water bank vegetation, web above water surface of little puddles
Frequency: Rarely found, widely distributed
Distribution
Phenology
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
 |  |
Figures
Pedipalp
(Wiehle 1937)
Pedipalp, ventral view
(Roberts 1995)
Pedipalp, ventral view
(Locket & Millidge 1953)
Pedipalp
(Wiehle 1937)
Pedipalp
(Loksa 1972)
Habitus
(Locket & Millidge 1953)
Habitus, lateral view
(Fjellberg unpubl.)
Habitus, ventral view
(Fjellberg unpubl.)
Epigyne
(Roberts 1995)
Epigyne
(Wiehle 1937)
Epigyne
(Loksa 1972)
Vulva
(Wiehle 1937)
Vulva
(Fjellberg unpubl.)
Opisthosoma, ventral view
(Locket & Millidge 1953)
Habitus
(Locket & Millidge 1953)
Habitus, lateral view
(Fjellberg unpubl.)
Eyes, dorsal view
(Locket & Millidge 1953)
Habitus
(Wiehle 1937)
Habitus, lateral view
(Wiehle 1937)
Spider in the web
(Loksa 1972)
Web
(Loksa 1972)
Distribution List
References
Aakra K, Morka G H, Antonson A, Farlund M, Wrånes R E, Frølandshagen R, Løvbrekke H, Furuseth P, Fjellberg A, Lemke M, Pfliegler W P, Andersen S, Olsen K M, Aadland B, Berggren K (2016) Spiders new to Norway (Arachnida, Araneae) with ecological, taxonomical and faunistic comments. Norwegian Journal of Entomology 63: 6-43 
Blagoev G, Deltshev C, Lazarov S, Naumova M (2018) The spiders (Araneae) of Bulgaria. Version: August 2018. National Museum of Natural History, Bulgarian Academy of Sciences. Online at http://www.nmnhs.com/spiders-bulgaria/ (accessed on 10.9.2018)
Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae). [N.B.: few records from this paper are not taken over and not commented] Zootaxa 4614: 201-254
Cawley M (2001) Distribution records for uncommon spiders (Araneae) including five species new to Ireland. Bulletin of the Irish Biogeographical Society 25: 135-143
Crespo L (2008) Contribution to the knowledge of the Portuguese spider (Arachnida: Araneae) fauna: seven new additions to the Portuguese checklist. Boletín de la Sociedad Entomologica Aragonesa 43: 403-407
Danışman T, Kunt K B, Özkütük R S (2019) The checklist of the spiders of Turkey. Version 2019 [last updated 1 June 2019], online at http://www.spidersofturkey.info
Farlund M (2019) Norwegian Spiders - Norske edderkopper. Siste oppdatering for funn av nye arter 10. oktober, 2019. Online at http://crocea.wordpress.com/norsk-artsliste/
Fjellberg A (unpubl.)
Kostanjšek R, Kuntner M (2015) Araneae Sloveniae: a national spider species checklist. ZooKeys 474: 1-91
Kreuels M, Staudt A, Christian S (2019) Die Spinnenfauna von Luxemburg – eine Zusammenstellung der Nachweise aus den Jahren 1906-2018 (Arachnida: Araneae). Bulletin de la Société des naturalistes luxembourgeois 121: 203-230
Kronestedt T (2001) Checklist of Spiders (Araneae) in Sweden [Preliminary version February 2001]
Locket G H, Millidge A F (1953) British spiders. Vol. II. Ray Society, London, 449 pp.
Loksa I (1972) Pokok II-Araneae II. Fauna Hungariae 109: 1-112
Machač O, Ivinskis P, Rimšaitė J (2016) Several new for the Lithuanian fauna species of spiders (Araneae). Naujos ir retos Lietuvos vabzdžių rūšys 28: 121-126
Otto S (2020) Caucasian spiders. A faunistic database on the spiders of the Caucasus Ecoregion. Database version 03.2020. 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). http://araneae.it. Fragmenta Entomologica 51: 127-152
Roberts M J (1995) Collins Field Guide: Spiders of Britain & Northern Europe. HarperCollins, London, 383 pp.
Samu F, Szinetár C (1999) Bibliographic check list of the Hungarian spider fauna. Bulletin of the British Arachnological Society 11: 161-184
Wiehle H (1937) Spinnentiere oder Arachnoidea, VIII. 26: Familie Theridiidae oder Haubennetzspinnen (Kugelspinnen). Die Tierwelt Deutschlands 33: 119-222
WSC (2021) World Spider Catalog. Version 21.5. Natural History Museum Bern, online at http://wsc.nmbe.ch (03.01.2021) doi: 10.24436/2