March Brown / Gray Fox - Nymph
This is a my basic go to nymph for the March Browns. I should probably have waited until I knock out about a dozen before I take a picture LOL....The first couple are a little rough as I get back into the proportions and bigger materials vs the little Baetis nymphs I've been tying. But you'll get the jist.
This is essentially a Dave Rothrock style nymph pattern. And is pretty darn deadly.
In the fly below, I'm just using a different dubbing than he uses. (Dave uses a custom Hareline mix of his own creation)
Hook - Size #10 or #12 2XL nymph (ala Daiichi 1710)
#10s for March Browns, #12 for Gray Fox. I tie more #12 than #10 because it seems to be a good crossover.
Thread - 8/0 Dark Brown Uni
Abdomen and Thorax - Fred Reese's AP Possum Blend - #4 "AP Gray Fox/ March Brown Nymph"
You can see the color is pretty spot on.
Abdomen rib - I use dark brown antron yarn that I spin into a small bundle to make a little rope but this could really be anything to create that dark brown contast.
Legs -Speckled Ginger Hen back feather.
Tails - Pheasant tail, 3 fibers, tied in individually to create that split
Wing case - Wild Turkey tail Flat - I generally like to use a section with a little more brown mottling than what I used here but I already had it tied in and it will fish just fine.
Un-weighted
-These are very brick shaped nymphs from the wing case tie in spot forward, and pretty triangular from there back.
The wing case should also be anchored right at midway on the hook shank. You want a big full wing case or they look a little goofy....especially if you tie in a wing case that is too skinny.
-Make sure the slip of turkey feather that you use for the wing case is a touch wider than what you anticipate the finished thorax to be so it gives you just a touch of wrap down to the legs.
-The legs are tied in in using separate clipped feather slips tied in one just ahead of the other.I like 2 sets on the #12s and 3 on the #10s(I think Dave actually uses 3 on both)
-Tails should be roughly the length of the finished body.
- Pick some gills out between the wraps of ribbing to the wing case tie in spot. Keep the top and bottom trimmed flat and finish with a light brushing out to the sides. Trim any whacky hairs or heavy spots.
And again credit to Jason Neuswanger for his great natural photographs just sitting on google for guys like me to borrow!