The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
Antonio knows of what he speaks, well, most of the time, so I defer to him.
I was speaking with my buddy, gutcutter... he felt the Adoptiva's were sizes 16 and 18, and the later mollis's about a 20.
...And then I checked what some of the experts (besides Tony) have said....
You might have noticed (or can ask Tony) that Baetis nymphs can be found on top of and along the sides of rocks in riffles –often exposed to current. Paraleps, although apt to be found in the same riffles, are deeper under the rocks, down where softer sediments are able to be deposited. I am under the impression that Baetis can emerge within faster currents (right from riffle rock tops) whereas Paraleps must use slower pockets of current to emerge, even migrating to riffle edges in some riffles...
Many, many spinners in the air, yet I never see them on the water.
Any guesses out there as to why this happens?
Do they drop late in the evening, or do they crawl in/dive in like the Baetis do?
I have also observed that the spring time P. adoptiva spinners and their simultaneously falling cousins (E. subvaria) will concentrate over the same riffles, producing interesting fishing in the pools below. There will be slightly different colored spinners in 14, 16 and 18 on the water at the same time.
Check out the Paraleptophlebia hatch page. I revised it the other day to help fill out the picture more on this genus. If you scroll down to the "Spinner Behavior" section, I think you'll find it answers your questions as well as confirming your observations.
Also, I've hooked an played more meadow cows than he has during trico season.
He was really confusing me for a while.
P.S. Ain't never seen a 20-inch fish in Spring Creek.
or electro-shocking rig