Needle Fly Nymphs (Leuctridae Family of Stoneflies)

The nymphs of the Needle Stoneflies are tiny, slim nymphs that stay hidden
down under and between the small rocks on the bottom. The way we have
found them is to simply rake up a inch deep section of bottom sand and gravel
and put it in a white pan. Using a process kind of like panning gold, we discover

I am not sure how many of the nymphs are eaten by trout. I do know they are
very plentiful in the small, high elevation streams and my guess is the trout eat  
a lot of them. You will also find them everywhere there is fast water. They hatch
in the riffles but I have seen them coming off at the tail ends of pools and the
heads of pools where the water flows into the pools from riffles or runs.

Nymph Presentation:
We fish the nymph without an indicator by placing weight about six inches above
the fly. The idea is to keep it on the bottom. I usually fish in an up and across
manner and allow the fly to swing around in the current to the down and across

You may try a strike indicator if you feel uncomfortable fishing by watching your
line and leader. I just use the end of the fly line as a strike indicator and watch
for it to stop, jump or act unnatural with the current.
Copyright 2013 James Marsh
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