Body length : 12-18mm.

This species is difficult to distinguish from other species of this genus.

– Completely black coloration, last segment of the antenna is not very elongated for the male, very short for the female, shorter than the previous one … subgenus Pelorinus (which contains P. ebeninus)
– Completely bronzed, metallic coloration, the last segment of the antenna lengthened in both sexes … subgenus Helopidoxus (which contains only P. superbus in France).