Hex Mayflies
Hexagenia limbata
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.
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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.
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Crepuscular on Jul 2, 2013July 2nd, 2013, 7:14 am EDT
Sorry for the crappy photos all I had was my phone
Collected 7/2/2013.
Dauphin County PA Susquehanna River
23mm
Female H. bilineata I guess, I don't recall ever seeing one before.
Collected 7/2/2013.
Dauphin County PA Susquehanna River
23mm
Female H. bilineata I guess, I don't recall ever seeing one before.
Martinlf on Jul 4, 2013July 4th, 2013, 4:57 am EDT
Wow! Cool.
"He spread them a yard and a half. 'And every one that got away is this big.'"
--Fred Chappell
--Fred Chappell
Entoman on Jul 10, 2013July 10th, 2013, 11:23 pm EDT
Looks like bilineata to me too, Eric. Spieth documented both the unique tergal markings and the black coloration in his '41 paper. The variability in this genus never ceases to amaze me.
"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman