Isopod

This is a pillbug, so named because it can roll up in a ball (see below) to discourage predation. Pillbugs are crustaceans that are mostly nocturnal and prefer dark, humid environments such as in soil or under other forms of debris during the day.

Order: Isopoda
Family: Armadillidiidae 

Photograph: © 2016 RKD Peterson
Date of Photograph: 21 April 2016
Location: Montana, Gallatin Co. (45^o40'06" N 111^o03'04" W)

Pillbug. © 2016 RKD Peterson