Niphopyralis contaminata is a moth in the family Crambidae.

The forewings are pure white with traces of a sinuous antemedial line.

There is a diffused black patch on the discocellulars and the costa above the end of the cell.

The whole outer area is fuscous black, except the apex and margin, on which black specks are present.

[2] The hindwings are white, with a few scattered fuscous scales.