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.
Taxon on Mar 30, 2016March 30th, 2016, 12:31 am EDT
Hi Derek-
Welcome aboard, and congratulations on your new rod purchase. However, you would really need to tell us more about what type of fish you will be seeking, and whether you will be fishing lakes or rivers or saltwater beaches, etc. in order to provide you useful information concerning choice of flies to use.
Of course, it would also be useful to know (at least) what geographic area you are from. I suggest you update your profile with that info.