Robertus alpinus Dresco, 1959
Description
Male
Unknown.
Female
Vulva: coiled ducts with 4 turns. Prosoma 1.6 mm long. Prosoma pigmented, eyes ringed with black. Eyes: AME slightly more than one diameter apart from ALE, PME one diameter apart, 1.5 diameters from PLE, AME one diameter from PME. Chelicerae with one tooth on posterior margin and 3 teeth on anterior margin. Leg colouration as prosoma.
Additional information
Only one female known. In mountain, at the base of a glacier. Altitude 2200 m.
Distribution
Phenology
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Figures
Vulva
(Dresco 1959a)
Eyes, frontal view
(Dresco 1959a)
Chelicera, frontal view
(Dresco 1959a)
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
Dresco E (1959a) Sur quelques espèces du genre Robertus (Araneae, Theridiidae). Description de R. alpinus et R. cardesensis spp. nov. Bulletin du Muséum National d'Histoire Naturelle de Paris 31: 242-247 
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
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
| 24-06-2014 | Image insert |