Antennal flagellomeres with long basal cilia. Forewing with a crenulated outer margin. Outer spur of midtibia much longer than inner. Forewing upperside ground colour olive green-grey; transverse lines indistinct, basal and two antemedial lines curved outward from inner margin and then back towards the costa; three postmedial bands running transversely across the wing, distal to which may be a variably developed paler patch between M2 and CuA1, and an orange-brown patch between M3 and the inner margin (both may be absent in some specimens).
Male genitalia: Uncus sinuate, rounded at tip. Harpe horizontal, long, upcurved distally, with a single apical point or with another tooth suapically on the dorsal edge. Phallus apex blunt or with a small transverse tooth on the right; sometimes there is a faintly indicated tooth on the left (but never the dentate flange of Xylophanes hannemanni).