Leucania is a genus of moths of the family Noctuidae first described by Ferdinand Ochsenheimer in 1816.

Palpi obliquely upturned, where the second joint roughly scaled, and prominent, short, naked and depressed third joint.

Head not deeply retracted into the thorax, which is smoothly scaled.

Abdomen with scarcely a trace of dorsal tufts on basal segments.

Forewings with vein 8 and 9 anastomosing (fusing) to form the areole.