The wings of this specimen were pale tan, almost white, when I collected it, and the body was of the lighter "apple green" from which this species gets its common name. Everything turned much darker by the time I got it home and under the camera. The wings look even darker in some of these pictures because the background is black and the wings are unusually translucent. You can see that in one of the pictures where the body easily through the wings. They're really a light, translucent gray, which is still far from the pale tan of the same fly when it was freshly emerged.

These big caddisflies were tempting trout as they wriggled out of their shucks, while others skated across the water at a medium pace, probably egg-laying.

This Epeorus dun managed to emerge successfully even though it had apparently long several legs at some point and only partially grown them back.

This one actually had a medium tan body when it emerged. By the time I took the picture it was dark as night. I was actually looking through my box of specimens trying to figure out where that tan one I caught disappeared to. Then I realized this is it.

This dun comes from the same location, and is about the same size, so is presumably the same species as this male spinner.

I collected a female dun on the same day that probably belongs to the same species as this spinner. It keys pretty clearly to Epeorus pleuralis among the species given in the key in Taxonomy of Epeorus Frisoni (burks) And a Key to New England Species Of Epeorus.