Early instars are a pale greenish white, with at first a horn, but later a brown knob near the hind end. Final instars (75 mm in length) come in two patterns: one has brown bands such that there are ten large pale green spots on the back and an eyespot on the rear. This form may mimic grapes.
Early instars of this insect are pale greenish white, initially possessing a horn but later developing a brown knob near their hind end.  The final stage (75 mm long) exhibits two patterns: one with brown bands that have ten large green spots on the back and an eyespot at the rear. This form may resemble grapes.