Speckled Peter Adult Caddisfly (Helicopsyche borealis)
The egg laying activity is the part of the hatch cycle that we think is most
important to imitate. You can easily see these caddisflies appear late in the
afternoons near the banks in large numbers.
The females deposit their eggs both on the surface and on the bottom. We have
not tried a wet imitation of them although we think it may well be effective. We
have been able to catch trout late in the afternoons and early evenings on our
"Perfect Fly" dry imitation of them.
Normally we fish in an upstream direction placing the fly close to the banks. This
isn't the best way if the water is very smooth and the trout are easy to spook near
the banks. In those cases, a down and across presentation works best.
It is best to watch the water for rises from trout. If they just swirl, most likely they
are taking the emerging pupae. They may possibly be eating the adults returning
from the bottom where they have dived and deposited their eggs. Even if the
caddisflies are doing that, they have to return to the surface at some point. They
cannot immediately fly away. It takes a few seconds for them to get their wings
dry before they depart the surface. For that reason, we only use the dry fly.
Copyright 2009 James Marsh
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