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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 Family Metretopodidae (Pseudo-Gray Drakes)

The mayflies of this family are large and elegant as adults and among the fastest-swimming of all mayfly species as nymphs. Sadly only one species (Siphloplecton basale) has been reported to produce fishable hatches, and even those are exceedingly rare.

Specimens of the Mayfly Family Metretopodidae

1 Male Spinner
Male Siphloplecton basale (Pseudo-Gray Drake) Mayfly Spinner
I went to great comical lengths to swipe this spinner from the air with a little aquarium net I carry with me while I'm fishing. Siphloplecton basale spinners fly fast and high over the riffles, and there are never very many of them, so they're difficult to catch.
1 Male Dun
Male Siphloplecton basale (Pseudo-Gray Drake) Mayfly Dun
This one hatched on the same April Saturday that I saw the first Hendricksons of the season.
9 Nymphs

Recent Discussions of Metretopodidae

S. basale on Clarks Creek, PA
1 replies
Posted by Wiconisco37 on Feb 4, 2009 in the species Siphloplecton basale
Last reply on Jun 10, 2009 by Martinlf
they were discovered on Clarks Creek by a man from halifax, PA
i dont know what their numbers were like thgough

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» Family Metretopodidae (Pseudo-Gray Drakes)
Genus in Metretopodidae
MetretopusPseudo-Gray Drakes11
SiphloplectonPseudo-Gray Drakes1038
Identification Keys
Family Range
Common Name
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