Tylostega mesodora is a moth in the family Crambidae. It was described by Edward Meyrick in 1894. It is found on Borneo.[1]
The wingspan is about 19 mm. 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. There is a blackish discal mark and a slender orange hindmarginal streak, preceded by a series of blackish spots. The hindwings are marked as the forewings, but there is a broad ochreous-white antemedial band.[2]