Phylomictis idiotricha is a moth in the family Depressariidae. It was described by Edward Meyrick in 1921. It is found in Australia, where it has been recorded from Queensland.[1]
The wingspan is about . The forewings are white irregularly mixed and sprinkled dark fuscous and with roundish brownish-grey blotches edged dark fuscous suffusion on the fold before the middle of the wing and in the disc at three-fourths, and a very oblique series of two or three suffused dark fuscous spots from the costa to each of these. A strongly curved subterminal series of similar spots is found near the posterior half of the costa and termen. The hindwings are grey whitish thinly clothed throughout with grey hairs.[2]