Rehimena unimaculalis is a moth in the family Crambidae.

[1] The wingspan is about 16 mm.

Adults are golden yellow, the forewings with a deep black discoidal lunule and traces of a terminal series of fuscous points.

The hindwings are rather paler yellow, with a terminal black band between veins 7 and 2, expanding triangularly at vein 7 and then narrowing to a line.

This Spilomelinae-related article is a stub.