WWW.TROUTNUT.COM

ORDER: Plecoptera
FAMILY: Pteronarcyidae
GENUS: Pteronarcys
 

Pteronarcyidae have branching gills from the bases of their legs as does Perlidae. What distinguishes Pteronarcyidae from Perlidae is the presence of gills on the first two abdominal segments. There are only two genera in this family, but the other, Pteronarcella, is only found in the west/southwest.