The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.
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.
Litobrancha on Sep 23, 2006September 23rd, 2006, 10:51 am EDT
this is a limnephilid larvae. check out this website for trichoptera larval family keys. don't think they have limnephilidae but you can get genera for most other families.