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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.

Mayfly Genus Caudatella

This Western genus is unimportant, but Caudatella heterocaudata and Caudatella hystrix are said to sometimes produce fishable hatches.

Specimens of the Mayfly Genus Caudatella

1 Male Dun
Male Caudatella heterocaudata  Mayfly Dun
A few days after unexpectedly collecting a female dun of this species, but in a sad, bedraggled shape, I went back to the same pool to see if I could find more. I was able to catch this one male dun during a dusk emergence dominated by other species, and he made it home in prime shape for photos.
2 Female Duns
2 Nymphs
1 Male Spinner

Recent Discussions of Caudatella

species taxonomy
3 replies
Posted by Konchu on Oct 29, 2010
Last reply on Oct 30, 2010 by Taxon
The paper is in press now, so I can share an updated taxonomic synopsis of the "unimportant" genus Caudatella. Have fun.

Caudatella edmundsi (Allen, 1959)

Caudatella columbiella (McDunnough, 1935), comb. n.
= Ephemerella californica Allen and Edmunds, 1961, stat. n., syn. n.

Caudatella heterocaudata (McDunnough, 1929)
= Ephemerella circia Allen and Edmunds, 1961, stat. n., syn. n.

Caudatella hystrix (Traver, 1934)
= Ephemerella spinosa Mayo, 1952
= Ephemerella cascadia Allen and Edmunds, 1961

Caudatella jacobi (McDunnough, 1939)
= Ephemerella orestes Allen and Edmunds, 1961

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