O'Reilly's Fly Tying/Fly Tying Patterns/Tying Dry Flies/Blue Winged Olive
Posted in Tying Dry Flies | This article was written by Rob O'Reilly

Blue Winged Olive

In the darkest corner of one of my dry fly boxes lies a blue winged olive pattern that catches lots of fish, and is pretty darn ugly. Well, ugly might be a bit harsh but it certainly lacks some of the pretty characteristics of say…Catskill patterns. A quill-bodied, beautifully hackled, split-winged pattern…..nope. This pattern reminds me of what a guide once said to me: "…..most flies are designed to catch fisherman"…

One look into his fly box would leave you wondering if his flies were ALL badly chewed-up by trout already. They truly looked more like a box of bare hooks than a box of flies. Almost half of them were only two-material patterns, many looked like thread alone. This nagged at me. Enough fish took my hackled patterns….they must like something about them. Then it happened. During a great BWO hatch, I began to get refusals on my hackled little BWO patterns. I studied them, as I’m sure countless anglers have, and captured a few samples. They were smaller, lighter in color and lower-riding than my patterns. Olive dry fly dubbing turned a very dark color when wet, and sat above the water~not in it. Back to the vise. Using synthetic-colored dubbing kept the color true, the CDC looked awful on the vise~but very real on the water and it was VERY quick to tie. I cranked-out a bunch and went back to that spot the next night. Problem solved.
I still prefer to tie on a CDC biot comparadun, but confess it probably has more to do more with my aesthetic sensibilities than anything else. When trout won’t take it though, I secretly tie one of these…..

NOTE:This design is pretty easy to tie in smaller sizes. I like the tails to be long and "flared" to a sort of fan shape. It helps to keep the fly
upright in the water when it lands.

Tying The Blue Winged Olive Fly Pattern

Hook:Tiemco 101 Size#18-#22
Thread:12/0 Tan
Tail:Med.dun spade hackle (microfibbetts would work well too)
Body:Pale olive/gray synthetic
Wing:Pale gray CDC

Start thread and wind back to the bend. Tie in approx. 8 hackle fibers and trim the butts.

Tying The Blue Winged Olive Fly Pattern

Dub the body forward, stopping where shown.

Tying The Blue Winged Olive Fly Pattern

Align the tips of approx. 6 CDC feathers (the "trash" feathers are fine) and tie in as shown. Trim the butts and makes several wraps of thread to secure and smooth the tie-in point.

Make a few wraps of dubbing in front of the wing to complete the fly, tie-off.


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