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Linyphiidae  Blackwall, 1859 / Micrargus  Dahl, 1886   9 species

Micrargus alpinus Relys & Weiss, 1997

WSC LSID urn:lsid:nmbe.ch:spidersp:011777

Key to genera | Key to species

Description

Embolus with angled tooth on base, surrounding border weakly developed. Epigyne with clearly visible hump in lateral view. Prosoma dark. Legs brighter than prosoma. Opisthosoma grey to black.

Body length male: 2.3 mm
Body length female: 2.5 mm
Additional information

In dwarf shrub heath of subalpine level, 1400-1600 m

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2026): Alps (Switzerland, Italy, Germany, Austria)
Figures
species

male Embolic tooth
(Rėlys & Weiss 1997)

species

female Epigyne, lateral view
(Rėlys & Weiss 1997)

species

female Vulva, dorsal view
(Rėlys & Weiss 1997)

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.

Austria   (Thaler, 1999b) ||| Germany   (Blick et al., 2016) ||| Italy   (Pantini & Isaia, 2018; Isaia et al., 2025) ||| Switzerland   (Hänggi, 2003) |||
References

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

Hänggi A (2003) Nachträge zum "Katalog der schweizerischen Spinnen" - 3. Neunachweise von 1999 bis 2002 und Nachweise synanthroper Spinnen Arachnologische Mitteilungen 26: 36-54 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

Pantini P, Isaia M (2018) Checklist of the Italian spiders (version June 2018). pdf

Rėlys V, Weiss I (1997) Micrargus alpinus sp. n., eine weitere Art der M. herbigradus-Gruppe aus Österreich (Arachnida: Araneae: Linyphiidae). Revue Suisse de Zoologie 104: 491-501 pdf

Thaler K (1999b) Beiträge zur Spinnenfauna von Nordtirol - 6. Linyphiidae 2: Erigoninae (sensu Wiehle) (Arachnida: Araneida). Veröffentlichungen des Tiroler Landesmuseums Ferdinandeum 79: 215-264 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
02-10-2025 Distribution update Detail
01-05-2020 Distribution update Detail
01-05-2020 Distribution insert Detail