Salticidae  Blackwall, 1841 / Yllenus  Simon, 1868   5 species

Yllenus arenarius Simon, 1868

Description

Male palp with very large conductor. Tibial apophysis very large. Prosoma with steeply ascending clypeus, covered with coloured scale hairs.

Body length male: 4.3-6.2 mm
Body length female: 5.9-6.9 mm
Additional information

Medium-sized species, coloured cryptically and hardly detectable in natural habitat, on sandy and scarcely overgrown ground, mostly dunes on sea beach.

Distribution
  Presence
  No data
Distribution comment: Ungarn, Kroatien, Serbien, Bulgarien: the records are interpreted as referring to Pseudomogrus vittatus (sensu Logunov & Marusik, 2003)
Global distribution (WSC 2026): Central, Eastern Europe
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
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.

Azerbaijan  Removed (Otto, 2022; Logunov & Marusik, 2003; Nuruyeva & Zamani, 2025) ||| Belarus   (Ivanov, 2013) ||| Bulgaria  Removed (Blagoev et al., 2018; Logunov & Marusik, 2003) ||| Croatia  Removed (Milosevic, 2002; Logunov & Marusik, 2003) ||| Czechia   (Řezáč et al., 2021; Růžička & Řezáč, 2022a; Růžička, 2012a) ||| Denmark   (Lissner & Scharff, 2019; Hansen et al., 2015) ||| Germany   (Blick et al., 2016) ||| Hungary  Removed (Samu & Szinetár, 1999; Logunov & Marusik, 2003) ||| Lithuania   (Biteniekytė & Rėlys, 2012) ||| Poland   (Szymański et al., 2021; Rozwałka & Stanska, 2008) ||| Russia, Central   (no references) ||| Russia, Southern   (Otto, 2022; Ponomarev & Khnykin, 2013; Ponomarev, 2022) ||| Serbia  Removed (Deltshev et al., 2003b; Logunov & Marusik, 2003) ||| Ukraine   (Polchaninova & Prokopenko, 2019) |||
References

Biteniekytė M, Rėlys V (2012) The checklist of Lithuanian spiders (Arachnida: Araneae). Biologija 57: 148-158 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

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.

Hansen M D D, Olsen K, Jensen T S (2015) Nye arter i Danmark. Terrestriske arthropoder og vertebrater [New species in Denmark. Terrestrial arthropods and vertebrates]. Naturhistorisk Museum, Aarhus, 94 pp. pdf

Ivanov V V (2013) The checklist of Belarusian spiders (Arachnida, Araneae). Zoology and Ecology 4: 293-311 pdf

Lissner J, Scharff N (2019) Danish Spiders. Formerly online at http://www.danmarks-edderkopper.dk pdf

Logunov D V, Marusik YM (2003) A revision of the genus Yllenus Simon, 1868 (Arachnida, Araneae, Salticidae). KMK Scientific Press Moscow, 168 pp 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

Nuruyeva T, Zamani A (2025) An annotated checklist of the spiders (Arachnida: Araneae) of Azerbaijan. Zootaxa 5680: 1-168 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

Ponomarev A V, Khnykin A S (2013) Spiders (Aranei) of Volgograd sity and its environs. The South of Russia: Ecology, Development 2013(4): 109-136 pdf

Řezáč M, Růžička V, Hula V, Dolanský J, Machač O, Roušar A (2021) Spiders newly observed in Czechia in recent years – overlooked or invasive species? BioInvasions Records 10: 555-566 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 (2012a) Pavouci České republiky. Pavouk 32: 2-3 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

Szymański D, Szymański D M, Szymański E, Kłonowski P, Szymański H M (2021) Spiders (Araneae) of inland dunes in the central part of the Wielkopolsko-Kujawska Lowland. Przegląd Przyrodniczy 32(2): 13-12 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

Żabka M (1997) Salticidae: Pajaki skaczace (Arachnida: Araneae) (Salticidae of Poland). Fauna Polski (Fauna Poloniae) 19: 1-188 pdf

Updates
09-11-2025 Distribution update Detail
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26-02-2023 Gallery image insert
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29-09-2015 Distribution update Detail
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