Maorineta acerba is a species of sheet weaver spider endemic to New Zealand.
Taxonomy This species was described in 1988 by Alfred Frank Millidge from male specimens. The holotype is stored in Otago Museum.
Description The male is recorded at 1.50-1.65mm in length. This species has a brown carapace, orange legs and black abdomen with a white patch dorsally.
Distribution This species is only known from the lower half of the South Island in 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" and "Data Poor: Trend".
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