Rhathamictis perspersa is a moth of the family Psychidae. This species was described by Edward Meyrick in 1924. It is endemic to New Zealand and has been observed in the Wellington region. Larvae of this species build small protective cases in which they hide and feed. The cases are brown and are neat in construction. The larvae live under the loose bark of trees and feed on inert animal matter. The adults have been observed on the wing in February and March.

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