Linyphiidae  Blackwall, 1859 / Silometopus  Simon, 1926   16 species

Silometopus incurvatus (O. Pickard-Cambridge, 1873)

Description
Male

Tibial apophysis large and bent. Embolus very robust.
Prosoma brown to dark brown, eye region, median spot, and weak radial stripes black. Male: descending ± uniformly towards posterior end. Legs brown, distally blackish. Opisthosoma black.

Body length male: 1.3-1.4 mm
Female

Epigyne with rounded posterior margin. 

Body length female: 1.4-1.7 mm
Additional information

mainly found in coastal area as yet

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2026): Europe, Russia (Europe to West Siberia), Central Asia
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
Distribution List
Belgium   (Bosmans & Van Keer, 2017) ||| Denmark   (Scharff & Gudik-Sørensen, 2006) ||| Estonia   (Vilbaste, 1987) ||| Finland   (Koponen et al., 2016) ||| Germany   (Blick et al., 2016) ||| Ireland   (Lavery, 2019) ||| Netherlands   (van Helsdingen, 2025a) ||| Norway   (Aakra & Hauge, 2003) ||| Poland   (Rozwałka & Stanska, 2008) ||| Romania   (Weiss & Petrișor, 1999) ||| Russia, Central   (Seyfulina, 2019) ||| Russia, Eastern   (Esyunin & Efimik, 1996a) ||| Russia, Northern   (Esyunin & Efimik, 1996a) ||| Russia, Southern   (Otto, 2022; Ponomarev, 2022; Tanasevitch, 2011b; Krasnobaev, 2004; Martynovchenko & Mikhailov, 2014) ||| Russia, Western   (Oliger, 2016) ||| Sweden   (Kronestedt, 2001) ||| Ukraine   (Polchaninova & Prokopenko, 2019) ||| United Kingdom   (Lavery, 2019) |||
References

Aakra K, Hauge E (2003) Checklist of Norwegian spiders (Arachnida: Araneae), including Svalbard and Jan Mayen. Norwegian Journal of Entomology 50: 109-129 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, Van Keer K (2017) Een herziene soortenlijst van de Belgische spinnen (Araneae). Nieuwsbrief van de Belgische Arachnologische Vereniging 32: 39-69 pdf

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

Fjellberg A (unpubl.) .

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

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

Holm Å (1977) Two new species of the erigonine genera Savignia and Silometopus (Araneae: Linyphiidae) from Swedish Lapland. Entomologica Scandinavica 8: 161-166 pdf

Kielhorn K-H (2025b) Silometopus acutus ist ein jüngeres Synonym von Silometopus bilacunatus (Araneae: Linyphiidae). Arachnologische Mitteilungen 70: 50-53 pdf

Koponen S, Fritzén N R, Pajunen T (2016) Checklist of spiders in Finland (Araneae). 6th version, December 2016, online at http://biolcoll.utu.fi/arach/checklist_of_spiders_in_Finland.htm pdf

Krasnobaev Y P (2004) [Spider catalogue (Aranei) of the Middle Volga Region]. Zhigulevskiy st. Nature Reserve named after I.I. Sprygin, Samara. 213 pp. pdf

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

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

Locket G H, Millidge A F (1953) British spiders. Vol. II. Ray Society, London, 449 pp. pdf

Locket G H, Millidge A F, Merrett P (1974) British Spiders, Volume III. Ray Society, London, 315 pp. pdf

Løvbrekke H (unpubl.)

Martynovchenko F A, Mikhailov K G (2014) Spiders (Aranei) of Teberda State Reserve: fauna and biotopic distribution. Euroasian Entomological Journal 13: 355-371 pdf

Oliger T I (2016) [The spider check-list (Araneae) of Nizhne-Svirskii nature reserve (Leningrad region, Russia)]. Lodeinoye Pole. 84 pp. 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

Roberts M J (1987) The spiders of Great Britain and Ireland. Volume 2: Linyphiidae and checklist. Harley Books Colchester, England, 204 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

Scharff N, Gudik-Sørensen O (2006) Katalog over Danmarks edderkopper (Araneae). Catalogue of the spiders of Denmark (Araneae). Entomologiske Meddelelser 74: 3-71 pdf

Seyfulina R R (2019) On linyphiid spiders (Aranei: Linyphiidae) from Moscow Area, Russia. Arthropoda Selecta 28: 453-458 pdf

Tanasevitch A V (2011b) On synonymy of linyphiid spiders of the Russian fauna (Arachnida: Aranei: Linyphiidae). 2. Arthropoda Selecta 20: 129-143 pdf

Vilbaste A (1987) Eesti Ämblikud (Aranei). Annoteeritud nimestik. Estonian spiders (Aranei). An annotated check list. Valgus, Tallinn. 113 pp. & 512 maps on 67 unpag. pages 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 (13.2.2026) doi: 10.24436/2 pdf

Updates
20-01-2026 Image insert
21-08-2025 Distribution update Detail
21-08-2025 Distribution insert Detail
11-06-2023 Distribution update Detail
06-01-2020 Image insert
12-02-2019 Distribution update Detail