Cephonodes banksi is a moth of the family Sphingidae.

The upperside of the abdomen is tri-coloured (the anterior is dark green, the median reddish-orange with a cream band and the posterior is brownish-orange/black).

The abdomen upperside has a prominent transverse white line preceding a reddish-orange band.

The rear part of the abdomen (posterior to the reddish-orange band) is brownish-orange.

The head, anterior part of the thorax, forelegs and midlegs are bright orange.