A medium-size (4.2-5.0 cm wingspan) long-winged dull grey moth. The black basal dash is short and inconspicuous, and there is light grey shading along the basal part of the costa. The doubled black antemedian line is jagged and linked on the lower half to the black-outlined claviform spot. The pale orbicular spot stands out against the ground, and has a small satellite spot at the lower margin. The hourglass-shaped reniform is outlined in black, filled with pale grey, and there is a series of dark wedges marking the subterminal line. The hindwings are grey-brown. Similar to L. georgii, L. unimoda and L. laticinerea. L. georgii is paler grey with a long thin black basal streak, the cross lines are obscure or obsolete and there is fine dark scaling along the veins giving a faintly streakier appearance. The other two species are darker than georgii, with less prominent cross lines. There are good genital characters, and dissections may be required to separate grotei, laticinerea, and unimoda.
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