Ariadna barbigera is a species of tube-dwelling spider endemic to New Zealand.

[1] 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.

[1] This species is only known from the Chatham Islands, New Zealand.

[1] Under the New Zealand Threat Classification System, this species is listed as "Naturally Uncommon" with the qualifiers of "Island Endemic" and "Range Restricted".

[2] This article related to araneomorph spiders is a stub.