Udea absolutalis is a moth in the Crambidae family. It was described by Dyar in 1913. It is found in Guyana. The wingspan is about 17 mm. The forewings are uniform dark grey, the discal dots represented by blackish clouds. The orbicular is small and the reniform is large. There are three yellowish dashes at the apex of the costa. The hindwings are translucent whitish, the veins and margin narrowly grey and the apex a little more extensively so.