Tylostega photias is a moth in the family Crambidae.

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

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

There is a broad, rather dark fuscous hindmarginal band, the anterior edge is suffused with ochreous.

There is also a fuscous mark in the disc near and before this, as well as a hindmarginal series of connected white dots.