Copyright 2013 James Marsh
Hatches and Trout Flies for the Metolius River Oregon
The first and probably the most important mayflies to hatch on the Metolius River are the
Blue-winged Olives. They start as early a January and last through most of June. These are
bi-brooded insects that hatch again from the middle of September through December. This
includes several species.
Green Drakes hatch from about the first of June through the middle of July, but this isn't a
huge hatch. The Small Western Green Drakes, or Flavs as many call them, hatch from mid
September to mid October. It is not a major hatch either.
Pale Evening Duns hatch during the month of August and Mahogany Dun hatch during
September. The second most important mayflies are the Pale Morning Duns, called PMDs by
most anglers. They hatch from the middle of May all the way through the middle of September.
Western Ginger Quill hatch during October and on into the first of November.
Caddisflies are very plentiful on the Metolius River. The Spotted Sedge is probably the most
plentiful with its several species. They start hatching about the first of April and can last all the
way through September. Little Short-horned Sedges, hatch even longer, or from the first of
April through September.
Green Sedges also hatch over a very long time. They usually start around the first of May and
last through September. The most important stage of life of the Green Sedge is the larva
stage. They are imitated with what is usually called "Green Rock Worms". These can be very
effective on the Metolius.
Golden Stoneflies can hatch from the middle of June until the middle of September. Imitations
of their nymphs work year-round. The Little Yellow Stoneflies, called Yellow Sallies" hatch from
the middle of June to the middle of August.
Terrestrial insects are on the Metolius River available for the trout to eat from the middle of
June through September. Imitations of beetles, ants and grasshoppers all three work great
during this time period.
Midges hatch throughout the year and trout can be taken on imitations of their larvae, pupae
and adults most anytime of the year, but the most important times are when no other large
insects are hatching.
If you haven't tried our "Perfect Flies", you are missing out on the best you can purchase. They
not only are the most realistic, they are the most effective flies to use on any spring creek. We
hope you give them the opportunity to work for you on this great stream.
Metolius River, Oregon
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