Theridiidae  Sundevall, 1833 / Robertus  O. Pickard-Cambridge, 1879   19 species

Robertus mediterraneus  Eskov, 1987

Description
Male

Prosoma 1.4-1.7 mm long. Colouration as in female.

Body length male: 2.8 mm
Female

Epigyne posteriorly with a strongly sclerotized rounded plate. Palp: claw with 3 teeth. Prosoma brownish yellow, 1.4-1.7 mm long. Chelicerae: anterior margin with 3 teeth, of which the middle one is largest, both proximal teeth contiguous. Opisthosoma yellow-brownish.

Body length female: 3.5 mm
Additional information

In the ground layer of forests of medium altitudes, Mediterranean species.

Distribution
  Presence
  No data
Global distribution (WSC 2020): Mediterranean, Switzerland, Austria, Eastern Europe, Caucasus
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
Distribution List
Albania   ( no references ) ||| Austria   ( no references ) ||| Azerbaijan   ( Otto, 2020; ) ||| Bosnia and Herzegovina   ( no references ) ||| Bulgaria   ( Blagoev et al., 2018; ) ||| France   ( no references ) ||| Georgia   ( Otto, 2020; ) ||| Greece   ( no references ) ||| Italy   ( Pantini & Isaia, 2019; ) ||| Montenegro   ( no references ) ||| North Macedonia   ( Komnenov, 2014; ) ||| Romania   ( no references ) ||| Russia, Southern   ( Otto, 2020; ) ||| Serbia   ( no references ) ||| Spain   ( no references ) ||| Switzerland   ( no references ) ||| Ukraine   ( no references ) |||
References

Barrientos J A, Uribarri I, García-Sarrión R (2014a) Arañas (Arachnida, Araneae) de un hayedo del Montseny (Cataluña, España). Rev Iber Aracnol 24: 3-14

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)

Eskov K Y (1987a) The spider genus Robertus O. Pickard Cambridge in the USSR, with an analysis of its distribution. Senck Biol 67: 279-296

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

Helsdingen P J van, IJland S (2015) A quick scan of the spider fauna in the surroundings of Përmet, Albania (Arachnida, Araneae) - preliminary report. Nieuwsbrief SPINED 35: 15-33

Knoflach B (1992) Neue Robertus-Funde in den Alpen: R. mediterraneus Eskoiv und Robertus sp.. Ber Nat - Med Ver Innsbruck 79: 161-171

Komnenov M (2014) Spider fauna of the Osogovo Mt. Range, Northeastern Macedonia. Fauna Balkana 2: 1-267

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

Mikhailov K G (2013) The spiders (Arachnida: Aranei) of Russia and adjacent countries: a non-annotated checklist. Arthropoda Selecta, Supplement 3: 1-262 pdf

Milasowszky N, Bauchhenss E, Freudenschuss M, Hepner M, Komposch C, Zulka K P (2015) Erstnachweise von Spinnen in Österreich (Araneae: Gnaphosidae, Linyphiidae, Lycosidae, Philodromidae, Theridiidae, Titanoecidae, Salticidae). Biodiversität und Naturschutz in Ostösterreich ‐ BCBEA 1/2: 296-303 pdf

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

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
20-02-2019 Distribution update Detail
19-01-2016 Distribution update Detail
24-12-2015 Distribution update Detail
21-10-2015 Distribution update Detail
04-12-2014 Distribution update Detail
01-12-2013 Distribution update Detail