Copyright 2013 James Marsh
Hatches and Trout Flies for the Ruby River Montana

Midges hatch throughout the year but are especially important during the times nothing
else is hatching in the early season, near the end of the fall season and during the winter.
They are more important in the tailwater section of the stream.

The Blue-winged Olives hatch from March through June with April bringing on the largest
hatches. There is a second hatch from about the first of September through October.

Stoneflies are important throughout the Ruby River. There are some Little Brown Stonflies
that hatch during March. Golden Stoneflies hatch from about the first of through the third
week of June. Little Yellow Stoneflies, or Yellow Sallies, hatch during the month of July. The
large Salmonflies are found in the fast water sections of the stream. They hatch during the
month of June, usually near the later part of June.

The Pale Morning Duns are as important as any of the mayflies. They hatch from about the
first of June through the middle of August. The largest hatches seem to come from about
from the middle of June through the middle of July.

There is a Mahogony Dun hatch from about the middle of September to the middle of
October. The little Trico mayflies hatch from about the middle of July through the first two
weeks of September. They are heavy hatches just above the lake and in some parts of the
tailwater.

There is a hatch of October Caddisflies that takes place from about the first of September
through the middle of October. This mostly occurs in the headwaters.

The Green Caddis or Sedges hatch during the months of July, August and into September.
The Rock Worm, imitating the larva of the Green Sedge is a great fly to use during that
time.

Spotted Sedges are plentiful during June, July and August. They are the most abundant
species of caddisflies on the Ruby River. The Little Short-horned Sedge hatch during the
same time period.

The terrestrial insects, consisting of grass hopper, ants and beetles, are very important,
especially in the agricultural areas of the river. That is most everywhere. They are  
important starting about the middle of June through September.

Streamers are always a good fly to use, especially in the tailwater section of the Ruby
River. There are plenty of sculpin and that would be our number one recommendation.

We highly recommend our "Perfect Flies". They are not only the most realistic flies you can
purchase, they are the most effective in catching trout. If you haven't already done so, we
ask you to give the a try. We are positive that you will be very glad you did.
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Ruby River Montana
Options For Selecting Flies:
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fishing this stream and we will send
you a list of our fly suggestions. Please
allow up to 24 hours for a response.

2. Call us 800-594-4726 and we will
help you decide which flies you need.

flies and we will select them and get
them to you in time for your trip.

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