Choristostigma erubescens is a moth in the family Crambidae.

The forewings are yellow, irrorated (sprinkled) with rufous scales.

There is an indistinct dark sinuous antemedial line and a leaden annulus in the cell, as well as a postmedial leaden band with black edges.

There is a dark point on the costa towards the apex and a waved subterminal leaden band.

The hindwings are whitish with a dark discoidal point and traces of a medial line on the inner area.