Sphingnotus insignis is a species of beetle belonging to the family Cerambycidae.

Sphingnotus insignis can reach a length of 23–38 millimetres (0.91–1.50 in).

Head, prothorax and elitra have a brilliant metallic blue colour and bear small white spots.

The surface has an irregular puntation arranged in longitudinal lines.

This Tmesisternini article is a stub.