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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Irdawson
Posts: 1
Posts: 1
Irdawson on Dec 2, 2010December 2nd, 2010, 9:57 am EST
need places in florida that have mayflies,lakes or rivers.thanksin advance
Taxon on Dec 2, 2010December 2nd, 2010, 10:10 am EST
Suggest you visit a library and check out The Mayflies Of Florida by Lewis Berner and Manuel L. Pescador. It has the sort of detail you seem to be seeking.