Copyright 2013 James Marsh
Hatches and Flies for Seneca Creek
Many anglers make the mistake of thinking the trout in the small freestone streams only
feed opportunistically. While this is true most of the time, it is also true that the trout will
always concentrate on the most abundant aquatic insects. Most of the time you can catch
trout on attractor and generic flies, both nymphs and dry flies, but you will find that you will
get a higher percentage of strikes if you use a specific imitation of an insect that is readily
available and plentiful.

Hatches are important because it brings many of the otherwise hidden aquatic insects out to
where they are exposed to the trout. An aquatic insect cannot hatch until it risk rising to the
surface or crawling out on the bank. When something is hatching, or about to hatch, try
using an imitation of it. You will find the results much better than just using any attractor fly
that may represent a wide variety of insects.

This stream doesn't seem to have a large population of any one species of aquatic insect.
However, It does have a wide variety of them. Among the most important ones are the
stoneflies. There are several families of stoneflies present.

One of the most plentiful ones are the Little Yellow Stoneflies, called Yellow Sallies by most
anglers. They hatch from about the middle of May through June and again in September
and October. During February to April, you will find some Little Brown and Black Stoneflies
hatching. They are actually in the same family. There are also a decent population of
Golden Stoneflies that hatch about the first of June for a couple of weeks.  There are even
some Giant Black stoneflies that hatch near the middle of May.

Hatches of Blue-winged Olives of several different species hatch from about the first of
March until June. You will find some more hatching during the month of October and even
the first of November. There is a Quill Gordon Hatch that usually starts about the middle of
March to the first of April. It lakes about three weeks. About the same time you will find
hatches of Blue Quills. They hatch for about six weeks. There is also a Hendrickson hatch
that takes place in certain areas around the middle of April . There will be a decent hatch of
March Browns that occurs near the first of May. It will last about a month or longer. You may
also find a few Sulphurs and Eastern  Pale Evening Duns during late May and early June.
These will be sparse hatches. Light Cahills are fairly plentiful. They start hatching about the
first of May. Slate Drakes are also present. These mayflies hatch very sparsely from about
the second week of June through September. In August and September, you will probably
find a few Mahogany Duns hatching but they will be rather sparse.

There are several species of Caddisflies that hatch but none of them in large quantities.
The most plentiful are the Cinnamon Sedges that hatch from May and into July. These are
more plentiful near any of the small springs that provide some of the water. There are a few
Green Sedges that hatch in late May and early June. The Great Autumn Brown Sedge
hatches in late September and October.

Don't forget the terrestrial insects. We think the most important ones are the beetles and
the ants. There is plenty of moth larvae, called inch worms by most anglers. There are
some grasshopper along the stream. Imitations of these may come in handy during the
summer months.

Some anglers carry a selection of small streamers. Sculpin are present in the stream. Just
make sure the streamers are not too large for the size of the trout. They work best during
the early mornings and late afternoon or after a rain that adds some color to the water.

We hope you give our "Perfect Flies" a try if you haven't done so already. They have
proven to be effective in these small Eastern mountain freestone stream on the wild
rainbows and brook trout. Both the nymph and adult stonefly imitations of the varies
species  are very realistic and very effective. If you insist on using them, we also sell all the
generic flies and attractor flies and at a price of less than half what most fly shops sell them
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