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   (Komnenov, 2010) ||| 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   (Ćurčić et al., 2007) ||| Spain   (Branco et al., 2019) ||| 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). Revista Ibérica de Aracnología 24: 3-14 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) pdf

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 pdf

Ćurčić B P M, Deltshev C C, Tomić V T, Ćurčić S B (2007) Biodiversity of spiders: on some taxa new to Serbia and to science. Archives of Biological Sciences Belgrade 59: 19P-20P pdf

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

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 pdf

Knoflach B (1992) Neue Robertus-Funde in den Alpen: R. mediterraneus Eskoiv und Robertus sp.. Berichte des Naturwissenschaftlich-Medizinischen Vereins in Innsbruck 79: 161-171 pdf

Komnenov M (2010) Checklist of spiders (Araneae) of Bosnia and Herzegovina. Uzizaž i Biospeld 5(2009): 52-69 pdf

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

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 pdf

Updates
08-06-2020 Distribution update Detail
21-04-2020 Distribution update Detail
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