Theretra polistratus

Theretra polistratus is a moth of the family Sphingidae.

Distribution
It is known from Papua New Guinea.

Description
It is an unmistakable species, characterized by three continuous dark green dorsal lines extending from the anterior edge of the mesothorax to the tip of the abdomen. The upperside of the body has a narrow dorsal line and a pair of somewhat broader subdorsal lines running from the mesothorax to the tip of abdomen. The forewing upperside ground colour is silver-grey with a dark green oblique antemedian line and six dark green postmedian lines.