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.
Greetings, I have a question for someone I found this one on my screen door last night and I have searched to try and come up with a name to put with it. I have tied flies for a few years but I've just duplicated patterns found in books or fly shops. I've never tried to identify the insects I have been tying, until now. By the way this mayfly is from Mid Missouri.