Fly fishing the north east can seem very difficult. Not sure what fly to tie for those picky trout? Well here you can find the flies proven to catch those picky trout!
The female isonychia is often a shade of brighter colored olive when first hatch. It will then darken up into the more well known colors of the iso. With this little piece of knowledge comes more takes, because if females are hatching, your gonna be pressed to be putting up numbers with a rusty or mahogany dun. Tossing this fly around has brought me some great luck when I see a slate drake emerge.
Materials
Hook- Daiichi 1180 #12
Thread- Olive 8/0
Tail- chartreuse dyed grizzly hackle fibers
Body- Pale evening dun and brown dry fly dubbin blended
In this video I tie my hth iso. I call it the heading to hatch iso because of the black wing case. If you ever sample nymphs from a stream prior to an emergence, you will find with dark wing cases. Many times if you fish a nymph with a dark wing case you will get quite a few more takes.
You can sub out the wing case material(turkey) for a synthetic material like silly skin or scud back. I like to use the turkey because I have a lot of it. Don't be fooled by the length of the video, I do a lot of explaining for the various techniques thought the fly. Once you have it, they are a rather quick tie that's well worth it. The stripe is optional, but I strongly recommend using a grey stripe. A white stripe while disappear when wet. The technique for the legs one the fly is a great one to learn. I use it on a lot of my nymph patterns.
Fish this fly in tail outs and riffles and good moving runs. Isonychia nymphs are excellent swimmers, they are fast. Be sure to apply action to fly via rod twitches, swinging, and stripping. You can fish them dead drift and still pick up fish, after all the nymphs have to stop swimming at some point. Enjoy.
These guys have been hatching lately on my local waters. There is a cahill, bwo, sulphur, and a blue quill. Theres quite a few pics so dont forget to click the read more.
The female isonychia is often a shade of brighter colored olive when first hatch. It will then darken up into the more well known colors of the iso. With this little piece of knowledge comes more takes, because if females are hatching, your gonna be pressed to be putting up numbers with a rusty or mahogany dun. Tossing this fly around has brought me some great luck when I see a slate drake emerge. 
