Glaucocharis microdora is a moth of the family Crambidae. It was first described by Edward Meyrick in 1905. It is endemic to New Zealand and is found in the southern parts of the North Island and the north and central parts of the South Island. It inhabits native forest at lowland to subalpine altitudes. The larvae of this species feeds on moss and adults are on the wing from November until February. It is similar in appearance to G. pyrsophanes but can be distinguished as G. microdora is of a smaller size and has bright yellow markings. It also lacks the broad white bars on forewings of G. pyrophanes.

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