Spotted Sedge (Hydropsyche species)
Larvae:
The larvae of the Spotted Sedge (Hydropsyche species) are eaten by trout to a
large extent. It is the position they find themselves in that makes them easy prey
for feeding trout. They dangle themselves on a silk line attached to a rock. This
genus is from the Hydropsychidae family called net spinners. Net spinners do not
build cases to live in. They build retreats or shelters that they reside in when they
are not feeding or moving from one place to another. Net spinners drift tiny nets
in the current to catch their food or small particles in the water.
If you pick up a rock from the stream to look for these larvae, the net will collapse
and be very difficult to observe If all other conditions are present, the more
algae there are in a stream, the more likely there are net spinning caddisflies
present. There are about seventy species in the Hydropsyche genus.
Fortunately for anglers, there is not much difference in the many species or
certainly not enough difference that the methods of imitating them or the imitation
itself (fly) needs to be different for various species. Almost every stream in West
contains Spotted Sedges and many in the Mid-west and Eastern United States.
Some of them have huge populations of these insects. They live in the riffles and
runs of the streams. They must have current to survive.
Larvae Presentation:
We fish the fly without an indicator. We do add some non-toxic weight a few
inches above it. You do not have to keep the fly on the bottom but you do want to
keep it in the lower section of depth of the stream. The method of presentation
we use depends on the stream and type of water. In general, we fish up and
slightly across in pocket water. Hold you rod directly above the fly and keep all of
the fly line you can out of the water to prevent extra drag. You will be fishing only
a few feet (very close) from your position, so this only works in fast, pocket water.
The water should be at least two or three feet deep or you will be likely to spook
the fish. You must make a careful approach without scraping your feet on the
bottom. Follow the fly with the rod tip all the way from the up and across position
until it is directly downstream of your position. You must feel the take in order to
know when to set the hook using this method, so you want to keep a tight line
from the fly to the tip of the rod. In moderate to fast flowing, smooth water we fish
down and across allowing the fly to swing from one side to the other much the
same way you would fish a soft hackle fly.
Larvae:
The larvae of the Spotted Sedge (Hydropsyche species) are eaten by trout to a
large extent. It is the position they find themselves in that makes them easy prey
for feeding trout. They dangle themselves on a silk line attached to a rock. This
genus is from the Hydropsychidae family called net spinners. Net spinners do not
build cases to live in. They build retreats or shelters that they reside in when they
are not feeding or moving from one place to another. Net spinners drift tiny nets
in the current to catch their food or small particles in the water.
If you pick up a rock from the stream to look for these larvae, the net will collapse
and be very difficult to observe If all other conditions are present, the more
algae there are in a stream, the more likely there are net spinning caddisflies
present. There are about seventy species in the Hydropsyche genus.
Fortunately for anglers, there is not much difference in the many species or
certainly not enough difference that the methods of imitating them or the imitation
itself (fly) needs to be different for various species. Almost every stream in West
contains Spotted Sedges and many in the Mid-west and Eastern United States.
Some of them have huge populations of these insects. They live in the riffles and
runs of the streams. They must have current to survive.
Larvae Presentation:
We fish the fly without an indicator. We do add some non-toxic weight a few
inches above it. You do not have to keep the fly on the bottom but you do want to
keep it in the lower section of depth of the stream. The method of presentation
we use depends on the stream and type of water. In general, we fish up and
slightly across in pocket water. Hold you rod directly above the fly and keep all of
the fly line you can out of the water to prevent extra drag. You will be fishing only
a few feet (very close) from your position, so this only works in fast, pocket water.
The water should be at least two or three feet deep or you will be likely to spook
the fish. You must make a careful approach without scraping your feet on the
bottom. Follow the fly with the rod tip all the way from the up and across position
until it is directly downstream of your position. You must feel the take in order to
know when to set the hook using this method, so you want to keep a tight line
from the fly to the tip of the rod. In moderate to fast flowing, smooth water we fish
down and across allowing the fly to swing from one side to the other much the
same way you would fish a soft hackle fly.
Copyright 2009 James Marsh
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