Theridiidae  Sundevall, 1833 / Theridion  Walckenaer, 1805   63 species

Theridion hemerobium Simon, 1914

Description
Male

Male palp with striking median apophysis. Conductor with terminal hook. Prosoma light yellow, with dark median stripe. Prosoma 1.1-1.8 mm long. Opisthosoma with whitish pattern, bordered with grey. Epigastric area markedly bulging.

Body length male: 2.4-3.9 mm
Female

Epigyne with very small central opening. Prosoma 1.1-2 mm long. Sternum yellowish white, darker on margin. Legs yellow white, with dark annulations. Characters as in male.

Body length female: 3.0-4.5 mm
Additional information

Usually near water: river banks, pond littorals, sides of lakes, bridges on rivers, marshes, also in pine or oak forests, gardens, among vegetation or stones.

Distribution
  Presence
  No data
Global distribution (WSC 2026): Canada, USA, Europe, Turkey, Israel, Iran
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
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.

Belgium   (Bosmans & Van Keer, 2017) ||| Bulgaria   (Blagoev et al., 2018) ||| Czechia   (Růžička & Řezáč, 2022a) ||| Denmark   (Scharff & Gudik-Sørensen, 2006) ||| France   (Iorio, 2023) ||| France / Corsica   (Le Peru, 2007) ||| Germany   (Blick et al., 2016) ||| Greece   (Knoflach et al., 2009b) ||| Ireland   (Nolan, 2013; Lavery, 2019) ||| Italy   (Isaia et al., 2025) ||| Netherlands   (van Helsdingen, 2025a) ||| Poland   (Wendzonka & Rutkowski, 2017) ||| Portugal   (Branco et al., 2019) ||| Romania   (Weiss & Petrișor, 1999) ||| Russia, Central   (Ponomarev, 2022) ||| Russia, Southern   (Ponomarev, 2022) ||| Slovakia   (Gajdoš et al., 1999) ||| Spain   (Domènech et al., 2023) ||| Sweden   (Kronestedt, 2001) ||| Switzerland   (Hänggi, 1999) ||| Turkey (Asia)   (Danışman et al., 2025a) ||| Ukraine   (Polchaninova & Prokopenko, 2019) ||| United Kingdom   (Lavery, 2019) |||
References

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) pdf

Blick T, Finch O-D, Harms K H, Kiechle J, Kielhorn K-H , Kreuels M, Malten A, Martin D, Muster C, Nährig D, Platen R, Rödel I, Scheidler M, Staudt A, Stumpf H, Tolke D (2016) Rote Liste und Gesamtartenliste der Spinnen (Arachnida: Araneae) Deutschlands. 3. Fassung, Stand April 2008, einzelne Änderungen und Nachträge bis August 2015. Naturschutz und Biologische Vielfalt 70/4: 383-510 pdf

Bosmans R, Van Keer K (2017) Een herziene soortenlijst van de Belgische spinnen (Araneae). Nieuwsbrief van de Belgische Arachnologische Vereniging 32: 39-69 pdf

Bosmans R, Vanuytven H, Van Keer J (1994) On two poorly known Theridion species, recently collected in Belgium for the first time (Araneae: Theridiidae). Bulletin of the British Arachnological Society 9: 236-240 pdf

Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae). Zootaxa 4614: 201-254 pdf

Danışman T, Kunt K B, Özkütük R S, Coşar İ (2025a) The checklist of the spiders of Turkey. Version 2025 [last updated 22 July 2025], online at http://www.spidersofturkey.info pdf

Domènech M, Méndez Ó, Espigulé-Pons J, Carbonell R, Pinilla-Rosa M (2023) Nuevas citas aracnológicas (Araneae) en Cataluña (NE de la Península Ibérica). Revista Ibérica de Aracnología 42: 159-166 pdf

Gajdoš P, Svatoň J, Sloboda J (1999) Katalóg pavúkov Slovenska. Catalogue of Slovakian spiders. Ústav kr. ekol. SAV, Bratislava, 337 pp.

Hänggi A (1999) Nachträge zum "Katalog der schweizerischen Spinnen" - 2. Neunachweise von 1993 bis 1999 Archnologische Mitteilungen 18: 17-37 pdf

Helsdingen P J van (2025a) Catalogus van de Nederlandse spinnen. Versie 2025.1. 249 pp. pdf

Iorio E (2023) Les peuplements d’araignées (Araneae) de la réserve naturelle régionale des Isles du Drac (Isère, France), avec focus sur deux zones humides. Bulletin de l'Association Française d'Arachnologie 10: 4-40 pdf

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 pdf

Knoflach B, Rollard C, Thaler K (2009b) Notes on Mediterranean Theridiidae (Araneae) - II. ZooKeys 16: 227-264 pdf

Kronestedt T (2001) Checklist of Spiders (Araneae) in Sweden [Preliminary version February 2001] pdf

Lavery A (2019) A revised checklist of the spiders of Great Britain and Ireland. Arachnology 18: 196-212 pdf

Le Peru B (2007) Catalogue et répartition des araignées de France. Revue Arachnologique 16: 1-468 pdf

Nolan M (2013) First Irish records of Theridion hemerobius Simon, 1914 (Araneae: Theridiidae). Bulletin of the Irish Biogeographical Society 37: 45-55 pdf

Polchaninova N, Prokopenko E (2019) An updated checklist of spiders (Arachnida: Araneae) of Left-Bank Ukraine. Arachnologische Mitteilungen 57: 60-64 & App pdf

Ponomarev A V (2022) Spiders (Arachnida: Araneae) of the southeast of the Russian Plain: catalogue, the fauna specific features. SSC RAS Publishers, Rostov-on-Don, 640 pp. pdf

Roberts M J (1995) Collins Field Guide: Spiders of Britain & Northern Europe. HarperCollins, London, 383 pp. pdf

Růžička V, Řezáč M (2022a) Seznam pavouků České republiky. List of spiders of the Czech Republic. Online at https://www.arachnology.cz/seznam-pavouku-cr-26.html and https://www.arachnology.cz/en/seznam-pavouku-cr-26.html pdf

Scharff N, Gudik-Sørensen O (2006) Katalog over Danmarks edderkopper (Araneae). Catalogue of the spiders of Denmark (Araneae). Entomologiske Meddelelser 74: 3-71 pdf

Weiss I, Petrișor A (1999) List of the spiders (Arachnida: Araneae) from Romania. Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” 41: 79-107 pdf

Wendzonka J, Rutkowski T (2017) Fauna. Wybrane grupy bezkręgowców. In: Herbich J (ed.). Przyroda Rezerwatu Mechowiska Sulęczyńskie. Fundacja Rozwoju UG, Gdańsk. pp. 157-169.

WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (13.2.2026) doi: 10.24436/2 pdf

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