Aucha is a genus of moths of the family Noctuidae.
Its eyes are naked and without lashes. The proboscis is well developed. Palpi upturned and smoothly scaled, where the second joint reaching above vertex of head, and third joint short. Antennae simple. Thorax and abdomen without tufts and smoothly scaled. Tibia spineless. Forewings with non-crenulate cilia and hindwings produced at apex.[1]
. George Hampson . The Fauna of British India, Including Ceylon and Burma: Moths Volume II . Taylor and Francis . 1894 . Biodiversity Heritage Library.