Eudonia singulannulata is a moth in the Crambidae family. It was described by Li, Li and Nuss in 2012. It is found in China (Henan, Ningxia, Shaanxi, Sichuan, Xinjiang). The length of the forewings is 8–10 mm. The forewings are covered with dense blackish brown scales. The antemedian line is white and the antemedian stigmata is blackish brown. The postmedian and subterminal lines are white and the terminal spots are black, distinct. The termen is dark brown. The hindwings are greyish white to pale brown.