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.
Stenacron interpunctatum interpunctatum do have more pics of her ????
Mack.
Sometimes if the difference is dramatic it's even good to two-tone your flies with shellbacks or marking pens.
You know I went through a spell years back where I carried Gary Borgers little color booklet and kept notes as I went...Ok. There! I said it...Nerd!:)