Antaeotricha diplophaea is a species of moth of the family Depressariidae. It is found in French Guiana.[1]
The wingspan is 17–18 mm for males and about 22 mm for females. The forewings are white with a suffused grey blotch mixed with dark grey occupying the costal half from the base to one-third, the outer edge slightly oblique. A broad irregular grey streak proceeding from this above the upper margin of the cell, projecting upwards in the middle of the wing, curved more broadly around a small dark fuscous spot on the end of the cell and uniting with a broad irregular streak along the dorsum from the base almost to the tornus, which is marked with a suffused dark fuscous spot at one-third and an indistinct dark spot beyond the middle, these streaks indistinctly connected before the middle. There is also a narrow cloudy grey spot on the costa at three-fourths and a thick grey streak along the termen not reaching the tornus. The hindwings are grey, paler towards the base and with the costa rather expanded from the base to three-fourths, with a broad projection of long rough scales suffused with grey beneath, and a long grey-whitish subcostal hairpencil from the base in the groove lying beneath the forewings.[2]