Epeorus Grandis?? Western Dun I believe may be a Pale Evening Dun

[Byron haugh]

It is difficult to find much about this insect. I took this photo of it on the Madison River this summer just upstream of the WestFork.

I BELIEVE it is an Epeorus Grandis. I further believe it may be what we commonly call a Pale Evening Dun. I do know it is called different things, including Little Marryats.

If it is a Pale Evening Dun, it is my understanding that they tend to hatch below the surface......drift.....and then break surface and fly off quickly. For this reason, I believe a wet fly is the more productive pattern.

Here is the imago stage I photographed and a little soft hackle I think might be a good pattern for it. Even made it with a pronounced head (if that matters).

Let me know what you think. I can't find a great deal about this insect in my mayfly books or even on the internet.

Thanks,
Byron









Or, a dun...