Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Giant Stonefly

Giant Stonefly
11.4 mi N of Ola, Gem County, Idaho, USA
July 5, 2014
July image for Idaho. Attracted to black light at Xylem Acres.

Moved from Giant Stoneflies.

Definitely not Pteronarcys. It's either Perlidae or Perlodidae. I'll take a closer look later, but for now, let's move it out of Pteronarcyidae.

not Pteronarcys
Maybe this is a Perlid stonefly, but it doesn't look like a Pteronarcys.