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 Skwala nymph still has a couple months left to go before hatching, but it's still a good representative of its species, which was extremely abundant in my sample for a stonefly of this size. It's obvious why the Yakima is known for its Skwala hatch.
Patriot on Sep 18, 2017September 18th, 2017, 3:30 pm EDT
There was a great ariticle in the Autumn 2017 Fly Tyer magazine on the use of these beads by Hans van Klinken (the Klinkhammer guy). Anyway, these beads were about $7 on Amazon, but I accidently found the same bead package for approximately $2.
If interested, here is the link to the bead store: