Zapada sp.
This species is in the genus Zapada. This small genus currently has at least 10 described species and all are members of the spring stonefly family, Nemouridae. The adult is brown to black. The immatures, called nymphs, live in small streams and feed on plant material.
Order: Plecoptera
Family: Nemouridae
Genus: Zapada sp.
Photograph: © 2014 RKD Peterson
Date of Photograph: 7 June 2014
Location: Montana, Gallatin Co. (45o45'57" N 110o58'44" W)