Tasmantrix tasmaniensis is a moth of the family Micropterigidae. It is known from in wet forests of western Tasmania.Micropterigidae (Lepidoptera) of the Southwestern Pacific: a revision with the establishment of five new genera from Australia, New Caledonia and New Zealand
The forewing length is 3.7 mm for males.
Etymology The species name is derived from its geographic location in Tasmania.
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