Cliniodes semilunalis is a moth in the family Crambidae. It was described by Heinrich Benno Möschler in 1890. It is found in southern Brazil, north to northern Goiás.
The length of the forewings is 12âÂÂ16 mm for males and 17âÂÂ20 mm for females. Adults have been recorded on wing in May, September and November.