A large (5.9-6.5 cm wingspan) moth with dark blackish forewings and deep red-orange hindwings. The forewings are dark grey with a few patches of pale scales, in particular before and below the reniform and along the subterminal line. There is a diffuse band or patch of paler scales, some of which are brown, inside of the subterminal band. The hindwings are deep red-orange, crossed by a complete black median and a wider black terminal band. The hindwing fringe is white. The antennae are simple, and the sexes are similar. The contrasting pale patch and brown scaling on the outer half of the forewings is diagnostic of briseis.
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