Sabatinca bimacula is a species of moth belonging to the family Micropterigidae. This species is endemic to New Zealand and has only been found in the Percy Valley and on Secretary Island in Fiordland. This species is sexually dimorphic with the male of the species having an L-shaped marking on the forewing while in the female the L-shaped marking is much broader and takes up most of the half of the forewing nearest the abdomen. The adults of this species are on the wing in the second half of October. Larvae of this species feed on the liverwort Bazzania involuta. The host species of adult S. bimacula are unknown but are likely to be fern spores or pollen from Sedge grasses. As at 2017 S. bimacula has been classified as having the "At Risk, Naturally Uncommon" conservation status under the New Zealand Threat Classification System.

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