Theridiidae  Sundevall, 1833 / Theridion  Walckenaer, 1805   45 species

Theridion mystaceum  L. Koch, 1870

Description
Male

Conductor laterally with small projecting tip. Palp: tibia 0.5 times as long as bulb. Prosoma 1.1 mm long. Characters as in female, but with epigastric area markedly bulgung.

Body length male: 2-3 mm
Female

Epigyne with a circular opening, copulatory openings well visible, more apart from each other than in T. betteni. Vulva with entrance ducts in numerous narrow loops. Prosoma yellowish-brown, tinged with black, eye region darker. Prosoma 1-1.2 mm long. Colouration and pattern as in T. melanurum. Sternum and chelicerae brown, sometimes almost black. Legs grey-yellow, annulated with dark brown. Opisthosoma very variable, mostly spotted brown, ventrally dark brown with white spot behind epigastric furrow.

Body length female: 2-3 mm
Additional information

Mainly in forests: coniferous, deciduous or mixed forests, also in heathlands, marshes, cereal fields, buildings, on walls of houses, bushes in meadows, hedges, on tree trunks and evergreen bushes.

Frequency: Widely distributed, not rare

Distribution
  Presence
  No data
Global distribution (WSC 2019): Europe, Turkey, China
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Females almost all the year, with a peak in May and June, males with a peak in May.
Figures
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

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)

Danışman T, Kunt K B, Özkütük R S (2019) The checklist of the spiders of Turkey. Version 2018 [last updated 1 January 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

Heimer S, Nentwig W (1991) Spinnen Mitteleuropas. Paul Parey Berlin pdf

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

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

Lissner J (2016c) A small study of the Corsican spider and pseudoscorpion fauna (Araneae, Pseudoscorpiones). Nieuwsbrief SPINED 36: 5-15

Locket G H, Millidge A F (1953) British Spiders 2. Ray Soc London

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

Otto S (2017) Caucasian spiders. A faunistic database on the spiders of the Caucasus Ecoregion. Database version 08.2017. Internet: caucasus-spiders.info.

Pantini P, Isaia M (2018) Checklist of the Italian spiders (version June 2018). online at http://www.museoscienzebergamo.it/web/index.php?option=com_content&view=category&layout=blog&id=96&Itemid=94 pdf

Pfliegler W A, Schönhofer A, Niedbała W, Vella P, Sciberras A, Vella A (2017) New records of mites (Acari) and harvestmen (Opiliones) from Malta with a preliminary checklist of Maltese Arachnida. Soil Organisms 89: 85-110 pdf

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

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

World Spider Catalog (2018) World Spider Catalog, version 19.5. Natural History Museum Bern, online at http://wsc.nmbe.ch (15.07.2018) doi: 10.24436/2

Updates
16-05-2018 Distribution update Old value
28-12-2016 Datasheet update Old value
28-12-2016 Distribution update Old value
21-10-2015 Distribution update Old value
05-08-2014 Image insert
04-12-2013 Distribution update Old value