View Full Version : Isonychia Nymph

12-21-2009, 02:20 PM
Anybody got a good recipe for the park (noticed Mr. Hartsell's are in black and some recipes are in brown)?

12-21-2009, 03:57 PM
BRF, I can't say which color is better, but the I-nymphs I prefer to buy look similar to this one....


Reason being...I found an Isonychia crawling on a rock in the North River one day, and on the way back to camp, I stopped by the Green Cove market and found a pattern similar to the one pictured above. Until I lost it to a vicious tree a few weeks later, I had great success with it.

12-21-2009, 04:08 PM
GK, thanks for the insight. I may tie both colors and just see how it goes. I wish I knew how Mr. Hartsell ties his black one though. Can't seem to find a recipe for it. I may try using some black hackle and dubbing.:confused:

12-21-2009, 04:53 PM
Blue raider, you may want to try peacock herl. In the water it turns a nice brownish color. Hugh's site probably has a photo and maybe a recipe for his patttern. Regards, Silvercreek

Hugh Hartsell
12-21-2009, 05:06 PM
There are several ways that you can tie the Iso and they will all work to some extent. The method that is shown by Grannyknot is the way that I tied the fly for a number of years. If you will notice in the picture that he has linked, it looks more like a Stonefly Nymph than an Iso. The reason is probably that there are a few different strains of the fly. The first ones that I used to see were on a Springcreek and they were the Bicolor strain and they are about the same color as the fly that he has pictured. I thought they were Stoneflies for years. The strain that you will find in the Park are a darker colored strain and just a little smaller. I went through several different patterns through the years and I finally settled on this one that you see on my website. It is a little harder to tie , but it is very effective.

Isonychia Nymph materials:
Hook: Mustad 96706 3x long #14- 16
Uni Thread: 8/0 Black
Tail: 3 barbs of black Ostrich herl
Ribbing: 6x tippet
Vertical Rib-Butt end of peacock herl or dental floss
Abdomen and thorax: Light wrapping of black superfine dubbing
Abdomen Gills: One strand of black ostrich herl
Wingcase: slip of black section of turkey tail feather or crow feather
Legs: Black rooster feather with the tip v- notched tied in behind hookeye

Tying instructions:
Place 96706 hook in the vice and wrap 15 wraps of .015 wire
Wind on 8/0 black thread and wind down to the hook bend
Tie in 3 short tips from black ostrich herls. Trim as needed
Next, tie in 6x tippet, follow with butt end of a strand of peacock herl
Now dub the full body with black superfine dubbing. Bring thread back
to the hookbend and tie in 1 strand of black ostrich herl
Wind ostrich herl up to the thorax section and tie off
Trim the top and bottom of the ostrich herl and this will leave gills on the sides
Bring peacock herl forward and tie in at the beginning of the thorax section
pick up the tippet material and wind forward making a segmented body look
Tie in at the thorax and then tie in the black turkey slip
Now take the v-notched rooster feather and place across the top of the hookeye and tie in, angling the legs slightly downward
Finally, bring the wingcase and peacock herl forward and tie off behind the hookeye, making sure that the peacock herl is aligned all the way up the center of the fly.

It is a little complicated at first, but it will reward your efforts. As I mentioned, this particular pattern is designed almost exclusivly for the Park and you may want to have both patterns on hand, depending on which stream that you are fishing. Good luck with your flies.

12-21-2009, 05:17 PM
Hey Thanks! That is WAY more complicated that I thought it would be, but thanks none the less! I will do my best and post a pic later. :biggrin:

12-21-2009, 05:46 PM
Hugh, That peacock herl for the strip along the top of the fly. That's a stripped herl right? Silvercreek

Hugh Hartsell
12-21-2009, 07:06 PM
That part of the herl is not stripped. It is the butt end and it comes like that on many of the strips. Look at a pack of strung herl and you will see lots of those. Not all will be usable for this purpose but there will be lots of them in a pack that are.