Key to species (2) of D. petrensis group

1. Sub-oval elytra less convex on disc with more spatulate setae on declivity. Humeri straight ................................................................................................... D. petrensis (Bellò & Baviera, 2011)

1’ Oval elytra more convex on disc with less spatulate setae on declivity. Humeri rounded............. D. asinelliensis sp. n.