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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Nymphs of this species were fairly common in late-winter kick net samples from the upper Yakima River. Although I could not find a key to species of Zapada nymphs, a revision of the Nemouridae family by Baumann (1975) includes the following helpful sentence: "2 cervical gills on each side of midline, 1 arising inside and 1 outside of lateral cervical sclerites, usually single and elongate, sometimes constricted but with 3 or 4 branches arising beyond gill base in Zapada cinctipes." This specimen clearly has the branches and is within the range of that species.
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Troutnut.com User Professor (William Ninke)
Troutnut.com User Professor (William Ninke)
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William Ninke
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Flemington, New Jersey
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I am now retired, having spent 36 years in the Research Area of Bell Telephone Laboratories. My own technical work and immersion among many excellent scientists has given me a good background in a wide variety of fields including acoustics, optics, and computer graphics. For the past 25 years I have taught fly tying at my local TU Chapter, Central Jersey Trout Unlimited. In my classes I always try to provide a deep understanding of not only the mechanics of the tying of a fly but also of the effective fishing techniques for it. I am hoping that my participation in this Forum will help me continue these practices in my classes and also bring some insights to other Forum members.
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