Ariadna barbigera is a species of tube-dwelling spider endemic to New Zealand.
Taxonomy This species was described in 1905 by Eugène Simon from female specimens collected by Hugo Schauinsland during his 1896-1897 trip to the Chatham Islands.
Description The female is recorded as 8-10mm in length. The carapace dark brown.
Distribution This species is only known from the Chatham Islands, New Zealand.
Conservation status Under the New Zealand Threat Classification System, this species is listed as "Naturally Uncommon" with the qualifiers of "Island Endemic" and "Range Restricted".
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