Thudaca ophiosema

Thudaca ophiosema is a moth in the Depressariidae family. It was described by Meyrick in 1893. It is found in Australia, where it has been recorded from Western Australia.^[1]

The wingspan is about 16 mm. The forewings are light ochreous-brown, somewhat darker posteriorly. There is a white costal streak from near the base to four-fifths, interrupted by an inwardly oblique bar of groundcolour about the middle. There is a white spot on the inner margin at one-third, preceded by a dark fuscous suffusion, and two small cloudy white spots on the inner margin at two-thirds. There is a moderate white median longitudinal streak from the base to four-fifths, sinuate upwards in the middle, and with the extremity bent upwards, partially margined with dark fuscous suffusion, which is continued posteriorly as a broad band to the hindmargin. There is a moderate irregular-edged white submarginal streak from the apex to the anal angle. The hindwings are ochreous-whitish.^[2]

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