Resources:
Theridiidae  Sundevall, 1833 / Robertus  O. Pickard-Cambridge, 1879   19 species

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
  Presence
  No data
Global distribution (WSC 2024): Italy
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.

Italy   (Pantini & Isaia, 2019) |||
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 pdf

Le Peru B (2011) The spiders of Europe, a synthesis of data: Volume 1 Atypidae to Theridiidae. Mémoires de la Société Linnéenne de Lyon 2: 1-522 pdf

Pantini P, Isaia M (2019) Araneae.it: the online catalog of Italian spiders, with addenda on other arachnid orders occurring in Italy (Arachnida: Araneae, Opiliones, Palpigradi, Pseudoscorpionida, Scorpiones, Solifugae). Fragmenta Entomologica 51: 127-152 pdf

WSC (2024) World Spider Catalog. Version 25.0. Natural History Museum Bern, online at http://wsc.nmbe.ch (22.01.2024) doi: 10.24436/2 pdf

Updates
24-06-2014 Image insert