The final
instar is about in length and about in diameter. "Ground colour deep velvety black; each somite, from 4th to 12th, bearing eight white/yellow tubercular processes, two subdorsally, two laterally, and four (in two rows) on each side subspiracularly. The 2nd somite bears four black processes, two subdorsally and two laterally. The 3rd somite bears 4 black processes, as in the 2nd, and two small yellow processes on each side, in line with the subspiracular processes on the other somites. Spiracles red; those on the 4th to 11th somites being surrounded by an irregularly shaped red area. Head and legs concolorous with body". (Fawcett). ==Food plants==