Tylostega mesodora is a moth in the family Crambidae.

The forewings are fuscous, the inner margin is suffused with ochreous towards the middle.

There is a suffused pale ochreous, orange tinged, streak along the costa.

The lines are dark fuscous, forming blackish spots on the costa.

The hindwings are marked as the forewings, but there is a broad ochreous-white antemedial band.