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Theridiidae  Sundevall, 1833 / Robertus  O. Pickard-Cambridge, 1879   18 species

Robertus heydemanni  Wiehle, 1965

WSC LSID urn:lsid:nmbe.ch:spidersp:007972

Key to genera | Key to species

Description
Male

Prosoma with shiny brown cephalic region, rest of prosoma with black spots and markings, striae distinct, fovea black. Sernum heart-shaped, densely covered with balck spots, Gnathocoxae, Labium and Coxae somewhat lighter. Legs dark brown, femora lighter. Opisthosma black.

Body length male: 2.3 mm
Female

Colouration dirty grey-brown. Sternum with dark margin and suffused with black. Femur and patella somewhat lighter than the rest of leg segments, suffused with black. Opisthosoma grey to black, book lung area brown, shiny.

Body length female: 2.4 mm
Additional information

Usually in damp habitats, marshes, swamps, also in cultivated lands and cereal fields.

Distribution
  Presence
  No data
Global distribution (WSC 2024): Sweden, Germany, Austria, Italy, Romania, Ukraine, Russia (Europe to West Siberia), Kazakhstan
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
species

male Pedipalp, retrolateral view
(Wiehle 1965a)

species

male Pedipalp, prolateral view
(Wiehle 1965a)

species

male Pedipalp, retrolateral view
(Wunderlich 1973b)

species

male Conductor
(Weiss & Andriescu 1989)

species

female Vulva, ventral view
(Weiss & Andriescu 1989)

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.

Austria   (Steinberger, 2004) ||| Denmark   (no references) ||| Germany   (no references) ||| Greece / Crete   (no references) ||| Italy   (Pantini & Isaia, 2019) ||| Romania   (Weiss & Andriescu, 1989) ||| Russia, Central   (Ponomarev, 2022) ||| Russia, Southern   (Ponomarev, 2022) ||| Russia, Western   (no references) ||| Sweden   (Kronestedt, 2001) ||| Ukraine   (Polchaninova & Prokopenko, 2019) |||
References

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

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). Fragmenta Entomologica 51: 127-152 pdf

Polchaninova N Y, Prokopenko E V (2013) Catalogue of the spiders (Arachnida, Aranei) of Left-Bank Ukraine. Arthropoda Selecta (Suppl.) 2: 1-268 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

Steinberger K-H (2004) Zur Spinnenfauna der Parndorfer Platte, einer Trockenlandschaft im Osten Österreichs (Burgenland) (Arachnida: Araneae, Opiliones). Denisia 12: 419-440 pdf

Weiss I, Andriescu I (1989) Das Weibchen von Robertus heydemanni Wiehle 1965 (Arachnida: Araneae: Theridiidae). Senckenbergiana Biologica 69: 77-81 pdf

Wiehle H (1965a) Beiträge zur Kenntnis der deutschen Spinnenfauna IV. Mitteilungen aus dem Zoologischen Museum in Berlin 41: 11-57 pdf

WSC (2024) World Spider Catalog. Version 25.5. Natural History Museum Bern, online at http://wsc.nmbe.ch (31.10.2024) doi: 10.24436/2 pdf

Wunderlich J (1973b) Zur Spinnenfauna Deutschlands, XV. Weitere seltene und bisher unbekannte Arten sowie Anmerkungen zur Taxonomie und Synonymie (Arachnida: Araneae). Senckenbergiana Biologica 54: 405-428 pdf

Updates
28-03-2024 Distribution update Detail
24-04-2015 Distribution update Detail
15-04-2013 Distribution update Detail