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.
. I cannot see the number of setae at the mesonotal sa1 but pretty sure it is something near Limnephilus externus/extractus. Other characters that would remove some uncertainty would be the presence/absence of dorsal chloride epithelia (I suspect they are absent) and presence/absence of accessory setae on the lateral femur surfaces. I cannot see the accessory setae in the photo but they can be small and clear. The best way to see them is to look at femur from a dorsal or ventral view. Then you can see them sticking out from the lateral surface if they are present and not broken off.
The first one Neophylax , Kurt called it a dot-Winged sedge, I'm not up on caddisfly common names...
...and I would expect to see it in the summer and fall as well.
You guys are rocking now! :)
You're right, Spence. This one's going featured!
You inadvertently raise a good point
...and don't include the word Sedge.
The similarities between adults of different species, even different families, seem to have led fly fishers to "call em like they see em" so a tan caddis becomes "Tan Caddis" or an olive caddis becomes "Olive Caddis" and so on down the line.
As opposed to "oh they've been eating a #14 Lady Beaverkill", for someone who is not up on regional fly fishing dialect, that fly may be a mystery.
No Jesse let everyone in on your "secret" a while ago. ;)