Walckenaeria

Male Walckenaeria acuminata, copyright Richard Gallon.

Belongs within: Linyphiidae.

Walckenaeria is a primarily Holarctic genus of small spiders, the males of some species of which have the eyes placed on elongated turrets.

Characters (from here): Tibial spination 2-2-1-1; metatarsus IV bearing a trichobothrium; paired tarsal teeth comb-shaped.

Walckenaeria
    |--W. acuminata Blackwall 1833 BBM02
    |--W. alticeps (Denis 1952) RKD02
    |--W. antica (Wider 1834) K02 [=Wideria antica V09]
    |--W. atrotibialis (Cambridge 1878) BBM2
    |--W. auranticeps (Emerton 1882) PS08
    |--W. capito (Westring 1861) K02
    |--W. cucullata (Koch 1836) MKD01
    |--W. cuspidata (Blackwall 1833) BH02
    |--W. directa JVHN90
    |--W. fraudatrix Millidge 1983 MKD01
    |--W. karpinskii (P.-Cambridge 1873) MKD01
    |--W. monoceros (Wider 1834) BBM02
    |--W. nodosa RKD02
    |--W. nudipalpis (Westring 1851) K02
    |--W. stylifrons (Cambridge 1875) BBM02
    `--W. unicornis Cambridge 1861 BH02

*Type species of generic name indicated

REFERENCES

[BH02] Bell, J. R., A. J. Haughton, N. D. Boatman & A. Wilcox. 2002. Do incremental increases of the herbicide glyphosate have indirect consequences for spider communities? Journal of Arachnology 30 (2): 288–297.

[BBM02] Bonte, D., L. Baert & J.-P. Maelfait. 2002. Spider assemblage structure and stability in a heterogeneous coastal dune system (Belgium). Journal of Arachnology 30 (2): 331–343.

[JVHN90] Jennings, D. T., W. M. Vander Haegen & A. M. Narahara. 1990. A sampling of forest-floor spiders (Araneae) by expellant, Moosehorn National Wildlife Refuge, Maine. Journal of Arachnology 18: 173–180.

[K02] Koponen, S. 2002. Ground-living spiders in bogs in northern Europe. Journal of Arachnology 30 (2): 262–267.

[MKD01] Marusik, Y. M., S. Koponen & S. N. Danilov. 2001. Taxonomic and faunistic notes on linyphiids of Transbaikalia and South Siberia (Araneae, Linyphiidae). Bulletin of the British Arachnological Society 12 (2): 83–92.

[PS08] Pinzón, J., & J. Spence. 2008. Performance of two arboreal pitfall trap designs in sampling cursorial spiders from tree trunks. Journal of Arachnology 36 (2): 280–286.

[RKD02] Relys, V., S. Koponen & D. Dapkus. 2002. Annual differences and species turnover in peat bog spider communities. Journal of Arachnology 30 (2): 416–424.

[V09] Verdcourt, B. (ed.) 2009. Additions to the Wild Fauna and Flora of the Royal Botanic Gardens, Kew. XXVI. Miscellaneous records. Kew Bulletin 64 (1): 183–194.