A small (2.2-3.2 cm wingspan) dark grey-brown or purple brown moth. The male has rather narrow, pointed forewings, with the costa decidedly concave in the center (not as much so in the female). The antemedian and postmedian lines are jagged and rather indistinct, the median line is diffuse, and the subterminal line is narrow and yellowish and stands out against the dark ground. The orbicular is small or absent, and the reniform is larger and much more prominent, especially in the male. The hindwings are as dark as the forewings, crossed by two indistinct darker bands. The antennae are simple and ciliate; both sexes are similar but the female has a broader and less modified forewing.