Tapinesthis inermis (Simon, 1882)
Description
Male
Palp: tibia short and bulging, bulb pear-shaped, longer than broad, embolus curved at the top. Prosoma 0.75 mm long. Prosoma horn-yellow, shining through whitish, radial stripes and margin darker. Opisthosoma whitish grey, dorsally darker pigmented. Characters as in female.
Body length male: 1.8 mm
Female
Prosoma 0.8 mm long. Eyes: ocular area pigmented with black, ALE one diameter apart, posterior row recurved. Labium as long as wide, almost square. All legs without spines.
Body length female: 2.4-2.5 mmAdditional information
In buildings, forests, garrigue and dry grasslands. 2 forms of this species are described, one in early spring and the other at the end of summer. The spring form is more coloured, and cuticula almost hairless, the summer form is pale, and legs and opisthosoma hairy.
Since a few decades, this species shows some spreading tendencies within Europe. Nevertheless, it shall not be listed as alien or invasive because it is native for Europe.
Distribution
Phenology
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Figures
Pedipalp
(Kraus 1967a)
Pedipalp, prolateral view
(Lazarov et al. 2001)
Pedipalp, retrolateral view
(Lazarov et al. 2001)
Epigyne
(Lecigne 2018b)
Vulva
(Kraus 1967a)
Prosoma, dorsal view
(Kraus 1967a)
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
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) 
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 K (2017) Een herziene soortenlijst van de Belgische spinnen (Araneae). Nieuwsbrief van de Belgische Arachnologische Vereniging 32: 39-69
Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae). Zootaxa 4614: 201-254
Helsdingen P J van (2025a) Catalogus van de Nederlandse spinnen. Versie 2025.1. 249 pp.
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
Kraus O (1967a) Tapinesthis inermis, eine für Deutschland neue Oonopide (Arachnida: Araneae: Oonopidae). Senckenbergiana Biologica 48: 381-385
Lazarov S, Deltshev C, Blagoev G (2001) The spiders (Araneae) of Sashtinska Sredna Gora Mountain (Bulgaria). Faunistic and zoogeographical analysis. Acta Zoologica Bulgarica 53: 3-28
Le Peru B (2007) Catalogue et répartition des araignées de France. Revue Arachnologique 16: 1-468
Lecigne S (2018b) Récits de chasses aranéologiques récentes dans plusieurs départements de France. Redécouverte de Philodromus buchari Kubcová, 2004 (Araneae: Philodromidae) et confirmation de la présence de Theridion harmsi Wunderlich, 2011 (Araneae: Theridiidae). Nieuwsbrief van de Belgische Arachnologische Vereniging 33: 59-99
Maurer R, Hänggi A (1990) Katalog der schweizerischen Spinnen. Documenta Faunistica Helvetiae 12
Naumova M, Lazarov S, Deltshev C (2019a) Faunistic diversity of the spiders in Montenegro (Arachnida: Araneae). Ecologica Montenegrina 22: 50-89
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
Thaler K, Knoflach B (2002b) Zur Faunistik der Spinnen (Araneae) von Österreich: Atypidae, Haplogynae, Eresidae, Zodariidae, Mimetidae. Linzer Biologische Beiträge 34: 413-444
WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (13.2.2026) doi: 10.24436/2
Updates
| 13-10-2025 | Distribution update | Detail |
| 20-09-2018 | Image insert | |
| 25-04-2018 | Image insert |