Thudaca trabeata is a moth in the family Depressariidae.

The forewings are deep golden ochreous with snow-white markings.

There is a straight subcostal streak from the costa near the base to the costa again near the apex, as well as a straight median longitudinal streak from the base to the hindmargin beneath the apex.

A streak is found along the inner margin from the base to the anal angle, attenuated near the base.

[2] This article on a moth of the subfamily Hypertrophinae is a stub.