Scotospilus nelsonensis is a species of Hahniidae spider endemic to New Zealand.Forster, R. R. (1970). The spiders of New Zealand. Part III. Otago Museum Bulletin 3: 1-184
Taxonomy This species was described as Tuana nelsonensis by Ray Forster in 1970 from male and female specimens. In 1986, Tuana was recognized as a synonym of Scotospilus, so the species name was changed to Scotospilus nelsonensis.Brignoli, P. M. (1986). Spiders from Melanesia III. A new Alistra (Araneae, Hahniidae) from the Solomon Islands. Bollettino del Museo Civico di Storia Naturale di Verona 11: 327-332 The holotype is stored in Otago Museum.
Description The male is recorded at 1.90mm in length whereas the female is 2.37mm. The carapace is darkly coloured with black markings dorsally. The legs are pale brown with dark markings. The abdomen is blackish with pale chevron pattern dorsally.
Distribution This species is only known from Nelson, New Zealand.
Conservation status Under the New Zealand Threat Classification System, this species is listed as "Data Deficient" with the qualifiers of "Data Poor: Size", "Data Poor: Trend" and "One Location".
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