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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Trtklr on May 23, 2009May 23rd, 2009, 9:30 am EDT
last year about this time i went to my local river and saw the trout feeding on the surface on small green worms. 1-2mm in diameter and 10-15mm long. i couldnt tell where they were coming from. honestly it looked like i could tie a short piece of bright green ribbing on a hook and catch fish. sorry i don't have a picture but i'm going out this week and i'm hoping to get one. has anyone encountered this?
I have seen nothing more beautiful than the sunrise on a cold stream.
Konchu on May 23, 2009May 23rd, 2009, 12:09 pm EDT
sounds like caterpillars that dropped off of trees. some species go into a wandering phase before they pupate (go into the cocoon phase of their life cycle). I've been seeing black ones lately.
Wbranch on May 23, 2009May 23rd, 2009, 12:39 pm EDT
Deleted.
Catskill fly fisher for fifty-five years.
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