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This topic is about the Mayfly Genus Tricorythodes

A cult following is something to which few insects can lay claim, but the tiny Tricorythodes mayflies certainly qualify. Their widespread, reliable, heavy hatches draw impressive rises of ultra-selective trout which demand the most of a technical dry-fly angler's skills.

It is surprising that such a great hatch took so long to come to the attention of fly fishermen. The Tricos were first introduced to anglers in a 1969 Outdoor Life article by Vincent Marinaro, who misidentified them as Caenis. By the early 1970s the identification had been corrected but Swisher and Richards still wrote in Selective Trout, "Few anglers are familiar with these extremely small but important mayflies." The next wave of publications boosted Tricorythodes to its current fame. I suspect their early dismissal was due in part to tackle limitations; anglers in the 1950s had no means to effectively tie and present size 22-28 flies. Read more...

There are 7 more specimens...

The Discussion

LastchanceJuly 2nd, 2011, 6:40 pm
Portage, PA

Posts: 437
Do they attach themselves in the silt near the shore? I'd like to study a few of them.
Thanks,
Bruce
KonchuJuly 2nd, 2011, 8:25 pm
Site Editor
Indiana

Posts: 496
I have found them among rocks where there's some flow in the stream, but theres often a fair amount of silt in with them. Doesn't mean they're not where you suggested--just my experience.
SpinnerfallJuly 10th, 2011, 1:38 am
Boulder, CO

Posts: 3
Informative. Thanks Konchu!
EntomanJuly 10th, 2011, 1:41 pm
Site Editor
Northern CA & ID

Posts: 2604
Hi Tim,

I've also found them at the bases of rooted weeds in the silt, and in the weeds themselves as they stage for hatching.

Regards,

Kurt

"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman

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