This a large species found in Trieste, the Tremiti Islands, the Croatian islands, and the Adriatic coast of Croatia. The individual coloration can range from silver-grey to beige. The tergites of this species are heavily tuberculated, giving them a rough, bumpy appearance that can be easily seen without magnification. They were previously classified as a subspecies of both Armadillidium peraccae and Armadillidium pallasi at one time.

This species is known for its prolific breeding and ease of cultivation. Like all Armadillidiidae, they can roll into a ball when disturbed. They prefer drier conditions and higher ventilation, much like other European Armadillidium species.