Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
This one seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.
Wbranch on Mar 26, 2014March 26th, 2014, 12:52 pm EDT
For some reason I wore that hat, or one like it, for at least ten years. I was known as Red Hat. I don't remember when I switched, I think in my mid 30's, and then to what was called an "UpDowner". It is very hard to find that style of hat anymore. I liked it because it had a long front brim like a blue water angler hat but all around the remaining periphery was a brim about 2" long that you could fold down over your ears and roll up at the neck so it still looked neat.