Cantuaria sylvatica is a species of trapdoor spider endemic to New Zealand.[1]
This species was described in 1968 by Ray Forster from female specimens collected in Fiordland. The holotype is stored at Otago Museum.
The female is recorded at 12.8mm in length. The carapace is reddish brown. The legs are orange brown. The abdomen is shaded reddish brown dorsally.
This species is only known from Fiordland, New Zealand.
Under the New Zealand Threat Classification System, this species is listed as Data Deficient with the qualifiers of "Data Poor: Size" and "Data Poor: Trend".[2]