Eudonia wolongensis is a moth in the Crambidae family. It was described by Li, Li and Nuss in 2012. It is found in China (Sichuan). The length of the forewings is 8–9 mm. The forewings are somewhat suffused with blackish brown scales. The antemedian, postmedian and subterminal lines are white. The hindwings are greyish white, the apex and termen are covered with sparse pale brown scales.