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 seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.
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Hellgrammites, Dobsonflies, and Alderflies
This common name refers to only one order. Click its scientific name to learn more.
Insect Order Megaloptera
These are pretty much always called Hellgrammites, Dobsonflies, and Alderflies.
Megalopterans can be an important source of food for trout and they're routinely neglected by anglers.
See the Corydalidae and Sialidae pages for details about each of the two families, of which Corydalidae is the most important.
See the Corydalidae and Sialidae pages for details about each of the two families, of which Corydalidae is the most important.
See 12 more specimens...