Wildlife Spotting

You are welcome. I took a fly fishing class, but do not have the heart to put a hook on the line. Best part of the class was the intricacy of how to make flies :)

Check Female Baetis (Blue-Winged Olives) Mayfly Dun Pictures http://www.troutnut.com/specimen/491

Here is address to the photos I was using for my suggestion - maybe you can look around at the other examples for a match: Female Epeorus vitreus (Sulphur) Mayfly Spinner Pictures http://www.troutnut.com/specimen/639

I did not think it was a perfect match - still having trouble with photos as examples for comparison. The heads of the other Flatheaded mayflies were more in line with yours. I did not think the abdomen was long enough or striped enough on the Red Mayfly, other Flatheaded were closer. Not many photos in bugguide, so I did several comparisons to photos used for trout fly making - don't laugh - but these sites seem to have the best detail photos of Mayflies. tough way to search. I will keep looking, but the Flatheaded, Heptageniidae, parts seem to continue to match :)

Take a look at Red Mayfly, Epeorus vitreus http://bugguide.net/node/view/420862/bgpage