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Iron blue dun

Posted on 25 January 2013 by Vincent

Most dry fly anglers will know this particular fly. The iron blue dun. It’s a small may fly that can appear throughout the year. It’s one of the very few patterns that can be fished in the early spring or late autumn. There have even been reports of this fly hatching in the winter. So I good all-round fly one could say.

There are many different patterns that imitate this fly. My favorite one is with CDC feathers. They float like a cork and fish seem to like ’em!

In this fly I like to use the Marc Petitjean Magic Tool. It’s a very handy little tool that lets you make beautiful dubbing loops with CDC and all kinds of other materials. In this video I don’t demonstrate how to use the tool itself. But you can find several videos on how to use this tool on YouTube.

The ribbing used in this fly is purely functional, that’s why I use a clear mono ribbing. But of course you can also use some other materials and colors to create a more segmented body. In this video I tie the fly on a size #14 hook, but smaller sizes (#16 and #18) are usually better.

Materials used

2 Responses to Iron blue dun

  1. on 27 January 2013 at 14:09 Joop de Vries said:

    I think you can tie the Iron blue at its best on a hook size 18 one time short. On a hook 14 it is better fished as a blue dun, the Baetis rhodani.
    The iron blue is hatching from about the half of april. It belongs to the family of the, what we call, small olives. It can be your seasonal Waterloo if you don’t have the right size in your box on special moments. 🙂

  2. on 2 May 2013 at 14:33 Ronald Carpay said:

    Nice fly, cought some Ide with it yesterday on a size 16.

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