Sowbug

6742.      Wondering what kind of bug this is in Marathon Ontario. Canada

 

Number 6742.  This is a sowbug, a terrestrial crustacean in the order Isopoda; the vast majority of these are harmless scavengers on decomposing organic matter. They breathe through gills that must be kept moist, so keeping your environs as dry as possible will discourage them from staying.