Pyrausta nigralis, n. sp.

Expanse of wings, 18 mm. The entire body and wings above and beneath, black; pecuts and base of the palpi, snow white. The outer line is represented by a nearly straight, snow white stripe, which starts from the outer third of the costa and extends nearly halfway across the wing and a spot on the fold near the outer third of the hinder margin below a similar spot on the endo of the cell.