Pillbugs

Definition

Common name for terrestrial isopods, a group of crustaceans that are often found in moist environments.

Etymology

From the Latin 'pillus', meaning 'small round stone', and 'buga', meaning 'bug'.

Example

Pillbugs are detritivores, feeding on decaying organic matter.

Related Terms

• Isopods
• Crustaceans

Usage Notes

Pillbugs are sometimes called roly-polies or armadillo bugs.