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Linyphiidae  Blackwall, 1859 / Walckenaeria  Blackwall, 1833   62 species

Walckenaeria extraterrestris Bosmans, 1993

WSC LSID urn:lsid:nmbe.ch:spidersp:013289

Key to genera | Key to species

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.

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2026): Algeria, Greece
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
species

male Pedipalp, retrolateral view
(Thaler 1996)

species

male Pedipalp, retrolateral view
(Bosmans & De Smet 1993)

species

male Tip of embolus
(Thaler 1996)

species

male Suprategulum
(Thaler 1996)

species

male Palpal tibia, dorsal view
(Thaler 1996)

species

male Palpal tibia
(Thaler 1996)

species

male Palpal tibia, dorsal view
(Bosmans & De Smet 1993)

species

male Palpal tibia, dorso-prolateral view
(Bosmans & De Smet 1993)

species

male Prosoma, frontal view
(Thaler 1996)

species

male Prosoma, frontal view
(Bosmans & De Smet 1993)

species

male Prosoma, lateral view
(Bosmans & De Smet 1993)

species

male Cephalic area, dorsal view
(Thaler 1996)

species

male Chelicera
(Thaler 1996)

Distribution List
Algeria   (Bosmans & De Smet, 1993; Benhacene et al., 2023) ||| Greece   (Van Keer et al., 2010) |||
References

Benhacene R, Adjami A, Hadjeb A, Kermiche K, Ouakid M L (2023) Bibliographic checklist of the Algerian spider fauna (Araneae). Zootaxa 5352: 301-357 pdf

Bosmans R, De Smet K (1993) Le genre Walckenaeria Blackwall en Afrique du Nord (Araneae, Linyphiidae). Revue Arachnologique 10: 21-51 pdf

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

Van Keer J, Van Keer K, De Koninck H, Ramel G (2010) The arachnofauna (Araneae) of wetland Kerkini (Macedonia-Northern Central Greece). Acta Zoologica Bulgarica 62: 141-160 pdf

WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.5.2026) doi: 10.24436/2 pdf

Updates
17-01-2024 Image insert
07-06-2022 Distribution update Detail