This one pretty clearly keys to Kogotus, but it also looks fairly different from specimens I caught in the same creek about a month later in the year. With only one species of the genus known in Washington, I'm not sure about the answer to this ID.
Bfdfisher on May 26, 2011May 26th, 2011, 5:50 pm EDT
This was the hatch of the night on 25 May 2011. It was epic....yet nothing was rising or visibly feeding. Not really positive what it is. It could be a Hendrickson, it's just so dark and eyes are so red. All the bugs coming off had the same strikingly red eyes.
Thanks all