Rehimena unimaculalis is a moth in the family Crambidae. It was described by George Hampson in 1912. It is found in Singapore.[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.[2]