Genus Armadillidium is a type of woodlouse or pillbug which belongs to the family Armadillidiidae. These small creatures have a hard exoskeleton and are commonly found in damp soil, leaf litter, and wood. Synonyms for Genus Armadillidium include Armadillo vulgaris, Oniscus armadillo, and Armadillo officinalis. These synonyms are often used interchangeably in scientific literature. Armadillidium species are widespread and occur on every continent except Antarctica. Due to their ability to decompose organic matter, they play an important role in soil health and nutrient cycling. They are also used as a model organism in biology research due to their ease of cultivation and genetic manipulation.