Linyphiidae  Blackwall, 1859 / Walckenaeria  Blackwall, 1833   62 species

Walckenaeria extraterrestris  Bosmans, 1993

Description
Male

Resembles W. acuminata. Head as in its sibling species elevated into a vertical turret, its terminal lobe, which carries the posterior median eyes, excavated on its anterior side. Palp: dorsal side branch of main tibial apophysis less elevated. End of suprategulum rounded, with small digitiform process.

Prosoma length: 1.2 mm, prosoma width: 0.9 mm.

Body length male: 2.7 mm
Female

Female unknown.

Distribution
  Presence
  No data
Global distribution (WSC 2021): Algeria, Greece
Figures
Distribution List
Algeria   (Bosmans, unpubl.) ||| Greece   (no references) |||
References

Bosmans R. (unpubl.) Provisional list of spiders of North Africa. Database excerpt Aug. 2019

Thaler K (1996) Three Walckenaeria species from Peloponnese, Greece (Araneae: Linyphiidae). Bulletin of the British Arachnological Society 10: 156-160 pdf

WSC (2021) World Spider Catalog. Version 22.5. Natural History Museum Bern, online at http://wsc.nmbe.ch (22.09.2021) doi: 10.24436/2 pdf