Linyphiidae  Blackwall, 1859 / Nematogmus  Simon, 1884   1 species

Nematogmus sanguinolentus (Walckenaer, 1841)

Description

Cymbium with deeply indented tip. Epigynal plate posteriorly with distinct indentation. Prosoma red-orange, with brownish margin. Legs yellow-orange. Opisthosoma light orange to yellow-orange, ventrally darker.

Body length male: 1.7-2.2 mm
Body length female: 2-2.5 mm
Additional information

in herbaceous and bush layer, in dry and sunny localities

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2026): Europe, North Africa, Caucasus, Russia (Europe to Far East), China, Korea, Japan
Figures
Distribution List
Albania   (Deltshev et al., 2011b) ||| Algeria   (Benhacene et al., 2023) ||| Armenia   (Otto, 2022; Mikhailov & Propistsova, 2017) ||| Austria   (Kropf & Horak, 1996) ||| Belgium   (Bosmans & Van Keer, 2017) ||| Bulgaria   (Blagoev et al., 2018) ||| Croatia   (Milosevic, 2002) ||| Czechia   (Růžička & Řezáč, 2022a) ||| France   (Le Peru, 2007) ||| Georgia   (Otto, 2022) ||| Germany   (Blick et al., 2016) ||| Hungary   (Samu & Szinetár, 1999) ||| Italy   (Isaia et al., 2025) ||| Italy / Sardinia   (Isaia et al., 2025) ||| Netherlands   (van Helsdingen, 2025a) ||| Portugal   (Branco et al., 2019) ||| Romania   (Weiss & Petrișor, 1999) ||| Russia, Eastern   (Esyunin & Efimik, 1996a) ||| Russia, Southern   (Otto, 2022; Ponomarev, 2022) ||| Serbia   (Deltshev et al., 2003b) ||| Slovakia   (Gajdoš et al., 1999) ||| Slovenia   (Kostanjšek & Kuntner, 2015) ||| Spain   (Branco et al., 2019) ||| Switzerland   (Maurer & Hänggi, 1990) ||| Ukraine   (Polchaninova & Prokopenko, 2019) |||
References

Benhacene R, Adjami A, Hadjeb A, Kermiche K, Ouakid M L (2023) Bibliographic checklist of the Algerian spider fauna (Araneae). Zootaxa 5352: 301-357 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

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 pdf

Bosmans R (2007) Contribution to the knowledge of the Linyphiidae of the Maghreb. Part XII. Miscellaneous erigonine genera and additional records (Araneae: Linyphiidae: Erigoninae). Bulletin & Annales de la Société Entomologique de Belgique 143: 117-163 pdf

Bosmans R, Van Keer K (2017) Een herziene soortenlijst van de Belgische spinnen (Araneae). Nieuwsbrief van de Belgische Arachnologische Vereniging 32: 39-69 pdf

Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae). Zootaxa 4614: 201-254 pdf

Deltshev C D, Ćurčić B P M, Blagoev GA (2003b) The spiders of Serbia. Inst. Zoology, Fac. Biology, Belgrade & Inst. Zoology, Bulg. Acad. Sci., Sofia. 832 pp.

Deltshev C, Vrenozi B, Blagoev G, Lazarov S (2011b) Spiders of Albania – faunistic and zoogeographical review (Arachnida: Araneae). Acta Zoologica Bulgarica 63: 125-144 pdf

Esyunin S L, Efimik V E (1996a) Catalogue of the spiders (Arachnida, Aranei) of the Urals. KMK Scientific Press, Moscow, 228 pp. pdf

Gajdoš P, Svatoň J, Sloboda J (1999) Katalóg pavúkov Slovenska. Catalogue of Slovakian spiders. Ústav kr. ekol. SAV, Bratislava, 337 pp. pdf

Helsdingen P J van (2025a) Catalogus van de Nederlandse spinnen. Versie 2025.1. 249 pp. pdf

Irfan M, Zhou G C, Peng X J, Zhang Z S (2025a) Survey of Linyphiidae spiders (Arachnida: Araneae) from some oriental regions of China. Megataxa 15: 1-248 pdf

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 pdf

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

Kropf C, Horak P (1996) Die Spinnen der Steiermark (Arachnida, Araneae). Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark Sonderheft: 1-112 pdf

Le Peru B (2007) Catalogue et répartition des araignées de France. Revue Arachnologique 16: 1-468 pdf

Maurer R, Hänggi A (1990) Katalog der schweizerischen Spinnen. Documenta Faunistica Helvetiae 12 pdf

Méndez Ó, Marquerie M, Domènech M (2024) Nuevos registros aracnológicos (Araneae) en Cataluña aportan nuevas citas a nivel regional, nacional y peninsular. Arxius de Miscel·lània Zoològica 22: 79-94 pdf

Mikhailov K G, Propistsova E A (2017) On the spiders (Arachnida: Aranei) from Armenia. Arthropoda Selecta 26: 369-371 pdf

Milosevic B (2002) Aranea – Popis vrsta – Checklist. Hrvatsko entomološko društvo – Inventar entomofaune Hrvatske [Aranea – List of species – Checklist. Croatian Entomological Society – Inventory of Croatian entomofauna]. pdf

Otto S (2022) Caucasian spiders. A faunistic database on the spiders of the Caucasus Ecoregion. Database version 02.2022. Internet: caucasus-spiders.info.

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

Růžička V, Řezáč M (2022a) Seznam pavouků České republiky. List of spiders of the Czech Republic. Online at https://www.arachnology.cz/seznam-pavouku-cr-26.html and https://www.arachnology.cz/en/seznam-pavouku-cr-26.html pdf

Samu F, Szinetár C (1999) Bibliographic check list of the Hungarian spider fauna. Bulletin of the British Arachnological Society 11: 161-184 pdf

Weiss I, Petrișor A (1999) List of the spiders (Arachnida: Araneae) from Romania. Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” 41: 79-107 pdf

Wiehle H (1960a) Spinnentiere oder Arachnoidea (Araneae). XI. Micryphantidae-Zwergspinnen. Die Tierwelt Deutschlands 47: 1-620 pdf

WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.5.2026) doi: 10.24436/2 pdf

Updates
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