Theretra silhetensis, the brown-banded hunter hawkmoth, is a moth of the family Sphingidae described by Francis Walker in 1856.

Not to be confused with Theretra oldenlandiae in being very much paler in color and with a white line down the center of the abdomen.

[3] But the commonly found color of larva is green with a reddish-brown dorsal area.

There is a subdorsal paler line with equal-sized ocelli from 4th to 10th somites with green center.

[4] Larvae have been recorded feeding on Colocasia antiquorum and Ludwigia species in southern China, Colocasia esculenta in Japan, Ludwigia repens and Boerhavia species in India and numerous other host plants from elsewhere, including Arum, Caladium, Pistia, Kochia, Ipomoea, Boerhavia, Ludwigia, Rosa and Trapa species.