Desmia microstictalis is a moth in the Crambidae family. It was described by Hampson in 1904. It is found on the Bahamas. The wingspan is about 24 mm. The forewings are black with two white points at the base and an antemedial bar in the cell, as well as an elliptical patch beyond the cell. There is an antemedial white patch on the hindwings, followed by a fine white line below the cell. There is an irregular patch beyond the cell and a fine white terminal line.