Monday, April 13, 2009

BWO's Starting To Cause A Stir In CO

"It isn't necessarily carved in stone that the meek shall inherit. But, in the case of a certain tiny insect, it certainly can cause a lot of commotion.

You'll find this occurrence on display at rivers all across the Colorado high country, where an emergence of miniature mayflies has touched off what may be the most dynamic surface fly-fishing event of the season.

This little bit of a bug is the baetis, better known and loved by its descriptive name, the Blue-Winged Olive or, for simplification, BWO. The beauty of the baetis is in its punch, the sheer strength to endure a cold weather lifestyle where other mayflies cannot survive.

In doing so, it serves a serendipitous function both for hungry trout and eager anglers. The season's first significant dry fly event features the perfect insect for Colorado, where higher elevation and a plenitude of tailwaters demands a bug tough enough to take the chill. This tough little bug also has the punch to produce two separate broods each year; rare among mayflies, it yields a second hatch almost precisely six months later, in late September and October — just in case we didn't have enough fun first time around."

Read more here!

By Charlie Meyers
The Denver Post


Photo: Charlie Craven's Soft Hackle BWO Emerger has proved deadly for spring hatches on the Arkansas River. ( Charlie Craven, Special to The Denver Post )

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