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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Millcreek on Apr 1, 2015April 1st, 2015, 8:53 pm EDT
These nymphs are fairly common in the Russian River. Usually found in slightly warmer, quiet water areas near shore. Substrate usually consists of small gravel and algae-ridden stones.
The nymphs were keyed out with Merritt, Cummins and Berg (2008).
The nymphs were keyed out with Merritt, Cummins and Berg (2008).
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