Theridiidae  Sundevall, 1833 / Theridion  Walckenaer, 1805   54 species

Theridion melanurum  Hahn, 1831

Description
Male

Conductor ± circular. Palp: tibia as long as bulb. Prosoma 1-1.6 mm long. Characters as in female, but epigastric area markedly bulging.

Body length male: 2.5-4.5 mm
Female

Epigyne with posteriorly indented groove. Vulva with double-looped entrance ducts. Prosoma dark brown, suffused with black, margin black. Prosoma 1-1.6 mm long. Sternum dark brown. Legs light brown, with thin black annulations. Opisthosoma colour very variable, dorsally with bright longitudinal band.

Body length female: 2.5-4.6 mm
Additional information

In crevices and mural chinks (but not together with T. betteni), in the mountains up to 1500 m.

Frequency: Very frequent, widely distributed

Distribution
  Presence
  No data
Global distribution (WSC 2020): Macaronesia, North Africa, Europe, Turkey, Caucasus, Russia (Europe to Middle Siberia), Middle East. Introduced to USA
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Peak between April and July.
Figures
Distribution List
Albania   ( Deltshev et al., 2011b; ) ||| Algeria   ( Bosmans, unpubl.; ) ||| Andorra   ( no references ) ||| Azerbaijan   ( Otto, 2020; ) ||| Belgium   ( no references ) ||| Bulgaria   ( Blagoev et al., 2018; ) ||| Croatia   ( no references ) ||| Cyprus   ( Bosmans et al., 2019c; ) ||| Czechia   ( no references ) ||| Denmark   ( no references ) ||| Estonia   ( no references ) ||| Finland   ( Koponen et al., 2016; ) ||| France   ( no references ) ||| France / Corsica   ( no references ) ||| Georgia   ( Otto, 2020; ) ||| Germany   ( no references ) ||| Greece   ( no references ) ||| Hungary   ( no references ) ||| Ireland   ( no references ) ||| Italy   ( Pantini & Isaia, 2019; ) ||| Italy / Sardinia   ( Pantini & Isaia, 2019; ) ||| Italy / Sicily   ( Pantini & Isaia, 2019; ) ||| Latvia   ( Cera, 2018; ) ||| Luxembourg   ( Kreuels et al., 2019; ) ||| Moldova   ( no references ) ||| Montenegro   ( no references ) ||| Morocco   ( Bosmans, unpubl.; ) ||| Netherlands   ( no references ) ||| North Macedonia   ( no references ) ||| Northern Ireland   ( no references ) ||| Poland   ( no references ) ||| Portugal   ( no references ) ||| Romania   ( no references ) ||| Russia, Central   ( no references ) ||| Russia, Eastern   ( no references ) ||| Russia, Southern   ( Otto, 2020; ) ||| Russia, Western   ( no references ) ||| Serbia   ( no references ) ||| Slovakia   ( no references ) ||| Slovenia   ( Kostanjšek & Kuntner, 2015; ) ||| Spain   ( no references ) ||| Sweden   ( no references ) ||| Switzerland   ( no references ) ||| Turkey (Asia)   ( Danışman et al., 2019; ) ||| Turkey (Europe)   ( Danışman et al., 2019; ) ||| Ukraine   ( Polchaninova & Prokopenko, 2019; ) ||| United Kingdom   ( no references ) |||
References

Aakra K (2000a) New records of spiders (Araneae) from Norway with notes on epigynal characters of Philodromus fuscomarginatus (De Geer) (Philodromidae) and Araneus sturmi (Hahn) (Araneidae). Norwegian Journal of Entomology 47: 77-88 pdf

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)

Bosmans R, Van Keer J, Russell-Smith A, Hadjiconstantis M, Komnenov M, Bosselaers J, Huber S, McCowan D, Snazell R, Decae A, Zoumides C, Kielhorn K-H, Oger P (2019c) Spiders of Cyprus (Araneae). A catalogue of all currently known species from Cyprus. Newsletter of the Belgian Arachnological Society 34, Suppl. 1: 1-173 pdf

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 pdf

Bosmans R. (unpubl.) Provisional list of spiders of North Africa. Database excerpt Aug. 2019

Cera I (2018) The checklist of Latvian spiders (Arachnida: Araneae). Environmental and Experimental Biology 16: 139-152 pdf

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

Deltshev C, Vrenozi B, Blagoev G, Lazarov S (2011b) Spiders of Albania – faunistic and zoogeographical review (Arachnida: Araneae). Acta Zoologica Bulgarica 63: 125-144

Demircan N, Topçu A (2016) First records for spider fauna of the European part of Turkey (Araneae). Serket 15: 85-91 pdf

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

Koponen S, Fritzén N R, Pajunen T (2016) Checklist of spiders in Finland (Araneae). 6th version, December 2016, online at http://biolcoll.utu.fi/arach/checklist_of_spiders_in_Finland.htm

Kostanjšek R, Kuntner M (2015) Araneae Sloveniae: a national spider species checklist. ZooKeys 474: 1-91 pdf

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 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

Locket G H, Millidge A F, Merrett P (1974) British Spiders 3. Ray Soc London

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 pdf

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

Roberts M J (1995) Spiders of Britain and Northern Europe. Collins Field Guide Bath

Thaler K (1966) Fragmenta Faunistica Tirolensia (Diplopoda, Arachnida). Ber Nat - Med Ver Innsbruck 54: 151-157

Vanuytven H (2014) Theridion asopi n. sp., a new member of the Theridion melanurum group (Araneae: Theridiidae) in Europe. Arachnology 16: 127-134

Wiehle H (1937) Spinnentiere oder Arachnoidea, VIII. 26: Familie Theridiidae oder Haubennetzspinnen (Kugelspinnen). Tierwelt Deutschlands 33

World Spider Catalog (2020) World Spider Catalog. Version 21.0. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.03.2020) doi: 10.24436/2

Updates
06-05-2020 Distribution insert Detail
16-05-2018 Distribution update Detail
05-08-2014 Image insert
04-12-2013 Distribution update Detail
15-10-2013 Distribution update Detail
15-04-2013 Distribution update Detail