Acontia species are characterized by an elongatedpalpi having pointed frontal tuft, and a well developed third segment. Antennae are simple and filiform, having no complex modifications or branches. Both the thorax and abdomen are covered in smooth scales, lacking tufts or patches. The forewing is bordered with non-crenulate cilia, and plain unnotched fringe along the edges. In terms of venation, veins 7 to 10 are stalked. The larvalstage is characterized by the presence of four pairs of abdominal prolegs.