Scoparia acharis is a moth of the family Crambidae. It was named by Edward Meyrick in 1884. This species is endemic to New Zealand and has been observed in both the North and South Islands. The preferred habitat of this species is native forest and in the South Island S. acharis has been observed in beech forest. The larval host of this species is moss. Adults are most commonly on the wing from November to January, although this species has been observed from October until March.

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