It is a good ant mimic of the conspicuous species Camponotus sericeiventris.

[1] E. velutinus is about 1 cm long and 3 mm wide.

The general color is black, with short golden hairs on top, patterned in a ways such that it resembles an ant.

The beetle's head and prothorax together mimic the ant's head, with a pair of black spots simulating the eyes.

[1] It is very similar to E. magnus, but is smaller, has a shorter pronotum, and has the entire apical half of the elytra densely clothed with silky, golden yellow pubescence, which helps giving the impression of C.