Armadillidium | |
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An Armadillidium granulatum in its roll-up stages. | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Malacostraca |
Order: | Isopoda |
Suborder: | Oniscidea |
Family: | Armadillidiidae |
Genus: | Armadillidium Brandt, 1833 |
Diversity | |
189 species |
Armadillidium (/ɑːrmədɪˈlɪdiəm/) is a genus of the small terrestrial crustacean known as the woodlouse. Armadillidium are also commonly known as pill woodlice, leg pebbles, pill bugs, roly-poly, or potato bugs, and are often confused with pill millipedes such as Glomeris marginata. They are characterised by their ability to roll into a ball ("volvation") when disturbed.