.......................  ....................  ...Fly Fishing Yellowstone National Park
07/29/12
New KISS Bug Series - Part 55

Small Western Green Drakes (Flavs)
Duns









The Small Western Green Drakes called "Flavs", accent from the bottom to the surface of the water and
split their shucks open for the duns to emerge in the surface skim. The duns only stay on the surface for a
very short time and then they quickly depart the water. The warmer the weather, the quicker they depart
the water. In most cases, this only takes a few seconds.

Although the trout will take emerger imitations of the Small Western Green Drakes very well, usually better
than the duns, most anglers prefer to fish a dun pattern. That's because the flies imitating the duns are
easier to see on the water than the emergers. The emergers float flush with the surface rather than on top
of the surface. We think the emergers actually get more action from the trout than the dun but the duns are
more fun to fish. The trout have far more time to eat the emergers and they are aware of the fact they don't
escape as fast.

You want to present the "Perfect Fly" Flav Dun in an up and across manner in pocket water. As mentioned
in the emerger section, the Small Western Green Drake duns emerge in the slower moving water adjacent
to their normal moderate to moderately fast water habitat. They quickly get caught up in the current seams
and channeled downstream.

If you are fishing pocket water streams, short, upstream presentations will cover more water and likely lies
in the current seams at the edges of the rough water than a downstream presentations. The short
presentations will also help you control drag by keeping most of your fly line off the water.

If you are fishing smooth flowing water, a downstream, or a down and across presentation usually works
best. Because the trout will be facing you, downstream presentations will require longer cast to keep from
spooking the trout. Presented properly, the downstream cast allows the trout to see the fly before seeing
your tippet, leader or fly line. In smooth water, this can make a big difference.

In some cases, it is best to single out one fish rather than trying to cover a larger area of water. It requires
a more technical type of presentation, but done correctly, it can result in a higher degree of success.
Copyright 2012 James Marsh
Sm. West. Green Drakes
Species:                             
Type:                                  
Availability to trout:             
Hook Size:                          
Numbers:                            
Distribution:                        
Type of water:                    
Emergence time:                
Duration of hatch period:

Perlidae family species
Crawler
Excellent
10/12
Moderate
Throughout the park in most all streams
Moderate to Fast
Evenings
2 weeks to a month