Linyphiidae  Blackwall, 1859 / Syedra  Simon, 1884   5 species

Syedra myrmicarum (Kulczyński, 1882)

Description
Male

Cymbium basally with 2 humps. Paracymbium with many small denticles. 

Body length male: 1.3-1.6 mm
Female

Epigyne with straight anterior margin of epigynal plate.

Body length female: 1.5 mm
Additional information

In heathland and on xerothermic slopes, in formicaries, under stones.

Character states from linyphiid key
Distribution
  Presence
  No data
Distribution comment: Norway: S. cf. apetlonensis is myrmicarum (Løvbrekke pers. comm.)
Global distribution (WSC 2026): Britain, Norway, Netherlands, Central Europe, Italy, Romania, Russia (Europe)
Figures
Distribution List
Austria   (Thaler, 1995) ||| Czechia   (Růžička & Řezáč, 2022a) ||| Germany   (Blick et al., 2016) ||| Italy   (Isaia et al., 2025) ||| Netherlands   (IJland & Boeken, 2025) ||| Norway   (Aakra et al., 2016) ||| Poland   (Rozwałka & Stanska, 2008) ||| Romania   (Weiss & Petrișor, 1999) ||| Russia, Southern   (Ponomarev, 2022) ||| Slovakia   (Gajdoš et al., 1999) ||| Switzerland   (Maurer & Hänggi, 1990) ||| United Kingdom   (Lavery, 2019; Collyer, 2015) |||
References

Aakra K, Morka G H, Antonson A, Farlund M, Wrånes R E, Frølandshagen R, Løvbrekke H, Furuseth P, Fjellberg A, Lemke M, Pfliegler W P, Andersen S, Olsen K M, Aadland B, Berggren K (2016) Spiders new to Norway (Arachnida, Araneae) with ecological, taxonomical and faunistic comments. Norwegian Journal of Entomology 63: 6-43 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

Collyer P (2015) Syedra myrmicarum: a new species record for the UK. Newsletter of the British Arachnological Society 133: 20 pdf

Fjellberg A (unpubl.) .

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

Heimer S, Nentwig W (1991) Spinnen Mitteleuropas. Paul Parey Berlin pdf

IJland S, Boeken M (2025) Syedra myrmicarum (Kulczyński, 1882) nieuw voor Nederland (Araneae, Linyphiidae) [Syedra myrmicarum new for the Netherlands]. Nieuwsbrief SPINED 45: 1-3 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

Lavery A (2019) A revised checklist of the spiders of Great Britain and Ireland. Arachnology 18: 196-212 pdf

Løvbrekke H (unpubl.)

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

Rozwałka R, Stanska M (2008) Check-list of spiders (Araneae) of Poland. 1. December 2008. online at http://www.arachnologia.edu.pl/en/species/8-spiders-of-poland.html 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

Thaler K (1983a) Bemerkenswerte Spinnenfunde in Nordtirol (Österreich) und Nachbarländern: Deckennetzspinnen, Linyphiidae (Arachnida: Aranei). Veröffentlichungen des Museum Ferdinandeum in Innsbruck 63: 135-167 pdf

Thaler K (1995) Beiträge zur Spinnenfauna von Nordtirol - 5. Linyphiidae 1: Linyphiinae (sensu Wiehle) (Arachnida: Araneida). Berichte des Naturwissenschaftlich-Medizinischen Vereins in Innsbruck 82: 153-190 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

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

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