Thudaca monolechria

Thudaca monolechria is a moth in the Depressariidae family. It was described by Alfred Jefferis Turner in 1947. It is found in Australia, where it has been recorded from Queensland.

The wingspan is about 16 mm. The forewings are shining white with orange-yellow markings. There is a broad costal streak from the base almost to the apex, leaving the costal edge white. There is also a dorsal streak throughout and a line from the apex to three-fourths of the dorsum. The hindwings are whitish grey.