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TaxonomyBrowse
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spiralis group

Dwarf Spider - Walckenaeria - male Walckenaeria spiralis-Voucher - Walckenaeria spiralis - female Walckenaeria spiralis-Voucher - Walckenaeria spiralis - female Spider - Walckenaeria - male Spider - Walckenaeria - male Spider - Walckenaeria spiralis - female Walckenaeria spiralis - female Walckenaeria spiralis - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynae)
Family Linyphiidae (Sheetweb and Dwarf Spiders)
Subfamily Erigoninae (Dwarf Spiders)
Genus Walckenaeria
No Taxon spiralis group
Explanation of Names
This group includes the three species W. spiralis, W. subspiralis, and W. microspiralis, which, Millidge (1983) writes, can only be separated on the basis of the female epigynum. The males, in particular, "are structurally indistinguishable".
Identification
"Males ... are diagnosed by the large diameter of the embolic coil, coupled with the form of the suprategular apophysis (SA), which has a hook-like projection anteriorly" (Millidge, 1983; see fig. 4 and article for further details).