Hatches Made Easy:

Giant Stoneflies (Pteronarcys species) - Nymph Presentation and Fly
Pattern Colors

03/10/08

Nymph Presentation:
These nymphs stay down between and under rocks most of the time. They do
come out to eat and to hatch, of course. One interesting thing about them is that
they are available in three sizes at any one time. They live for three years. That
means there are one year old nymphs available, two year old ones and three
year old ones that are available for the trout to eat.
There are two basic ways to fish imitations of the nymph as far as I am
concerned.
One is the "high stickin" method. In case you are not familiar,
you stand perpendicular to a run just beyond a rods length from it. This works
best when the water in the run is at least two or three feet deep. Approach the
run very carefully to avoid alerting the trout of your presence. Make an up and
across very short cast. You only need two to six feet of line out the tip of your
rod and a eight or nine foot leader. In this case, I would recommend a 4X or
even larger 3X or 2X leader. You want to weight the tippet about eight inches
above the fly with enough weight to get it down on the bottom fast. This will vary
with the depth of the water and the speed of the current. Swing the rod
downstream directly above the fly keeping the fly on or very near the bottom.
Straighten your rod arm and keep it high. If the fly stops, or you feel a "live"
thump, set the hook. When the fly is downstream of your position, make another
cast. To cover new water, you can cast a little farther over in the run or you can
move upstream a step before making the next cast.
The other method I use is intended to imitate the nymphs migrating to
the banks to hatch.
When enough of these nymphs start moving to the banks
to hatch, the trout will begin to intercept them close to the banks. Use this
method during the hatch in low light situations either very early in the mornings
or late in the day up until the park rules require you to stop fishing. Stand on the
bank a few feet from the water so that you will not spook any trout near the
bank. Cast up and across the stream. Use a heavily weighted fly and keep it on
the bottom. Bring the fly back to the bank using continuous short two to three
inch retrieves. Use the fingers of your non-rod hand to make the short retrieves.
Bring the fly all the way to the bank even if the fly is almost directly downstream
from your position. Follow the drift of the fly downstream with your rod. You want
have any problem detecting the bite. This only works where the banks are clear
enough of trees and other obstructions to do this. You will need to be creative in
bringing the fly towards the banks in other situations. By the way, both of these
methods are very effective for catching large brown trout.

Fly Pattern Colors:
dorsata
Nymph:
Hook: 2 - 6:
Body: Dark Brown
Thorax: Dark Brown
Legs: Dark Brown
Tails: Dark Brown
Antennae: Dark Brown

Commercial Flies:
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Coming Up Next:
Light Cahill Mayflies

Copyright 2008 James Marsh
Flyfishingdvd's Imitating Aquatic
Insects: Stoneflies  
will teach
you what you need to know about
stoneflies and how to imitate
their behavior.