Proleucinodes melanoleuca is a moth in the family Crambidae.

[3] The forewings are white and semihyaline, except the marginal areas, which are irrorated (sprinkled) with some black scales.

There is a discoidal spot, defined by a few black scales, its upper part filled with pale red brown and with a pale red-brown spot above it below the costa.

The postmedial line consists of a slight brown mark and a series of black spots.

The hindwings are white and semihyaline, except for the terminal area.