Robertus heydemanni Wiehle, 1965
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 mmFemale
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 mmAdditional information
Usually in damp habitats, marshes, swamps, also in cultivated lands and cereal fields.
Distribution
Phenology
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Figures
Pedipalp, retrolateral view
(Wiehle 1965a)
Pedipalp, prolateral view
(Wiehle 1965a)
Pedipalp, retrolateral view
(Wunderlich 1973b)
Conductor
(Weiss & Andriescu 1989)
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.
References
Blick T, Finch O-D, Harms K H, Kiechle J, Kielhorn K-H , Kreuels M, Malten A, Martin D, Muster C, Nährig D, Platen R, Rödel I, Scheidler M, Staudt A, Stumpf H, Tolke D (2016) Rote Liste und Gesamtartenliste der Spinnen (Arachnida: Araneae) Deutschlands. 3. Fassung, Stand April 2008, einzelne Änderungen und Nachträge bis August 2015. Naturschutz und Biologische Vielfalt 70/4: 383-510 
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
Isaia M, Tolve M, Pantini P (2025) Araneae.it: 2.0: the new updated version of the digital catalog of the Italian spiders and other arachnids (Arachnida: Araneae, Opiliones, Scorpiones, Pseudoscorpiones, Palpigradi, Solifugae). Fragmenta Entomologica 57: 197-204
Kronestedt T (2001) Checklist of Spiders (Araneae) in Sweden [Preliminary version February 2001]
Polchaninova N, Prokopenko E (2019) An updated checklist of spiders (Arachnida: Araneae) of Left-Bank Ukraine. Arachnologische Mitteilungen 57: 60-64 & App
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.
Scharff N, Gudik-Sørensen O (2006) Katalog over Danmarks edderkopper (Araneae). Catalogue of the spiders of Denmark (Araneae). Entomologiske Meddelelser 74: 3-71
Steinberger K-H (2004) Zur Spinnenfauna der Parndorfer Platte, einer Trockenlandschaft im Osten Österreichs (Burgenland) (Arachnida: Araneae, Opiliones). Denisia 12: 419-440
Weiss I, Andriescu I (1989) Das Weibchen von Robertus heydemanni Wiehle 1965 (Arachnida: Araneae: Theridiidae). Senckenbergiana Biologica 69: 77-81
Wiehle H (1965a) Beiträge zur Kenntnis der deutschen Spinnenfauna IV. Mitteilungen aus dem Zoologischen Museum in Berlin 41: 11-57
WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (13.2.2026) doi: 10.24436/2
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