creekx
Director of Stoke
Encountered this mayfly hatch on a North Idaho stream. Sorry for the crap phone photo. I was on the oars and could not access my DSLR.
Some type of Heptageniidae clinger like Epeorus or Heptagenia? About a size 15, plain wings, large hind wings, two tails. It may have the dark, heart-shaped spot on the forelegs like Epeorus. Are the light, contrasting edges of the body segments a tell?

Some type of Heptageniidae clinger like Epeorus or Heptagenia? About a size 15, plain wings, large hind wings, two tails. It may have the dark, heart-shaped spot on the forelegs like Epeorus. Are the light, contrasting edges of the body segments a tell?
