The aim of this blog is to connect fly-tyers all over the world, to share, techniques, patterns, information and knowledge.

Tying the Detatched body mayfly

This is a simple but but effective mayfly pattern that fly tyers of any level can tie with a little practice. Once you have masterd this technique all you have to do is change the size and colour to match most mayfly hatches.

The chioce of colours and sizes of fly to be used when tying this pattern is determined by what mayfly you intend to imitate and under what conditions.  In still water fishing, trout can be extremly sellective when feeding on mayflies, they have good time to check them out before sucking them in.

Body form: Upholsterers needle

Hook: Standard dry Mustad 94840 # 16-10

Thread: Dyneema

Tail: Peccary or moose hair

Body: Flyrite dubbing

Wing: CDC fibres

1
Place the upholsterers needle in the vice. You can use a regular straight needle for this if you would like to make a body that lies flat in the surface like a spinner. The upholsterers needle can be bought from most good hardware stores.

2
Apply a little fly tyers wax to the area of the needle that you will use to make the body. This will make removing the body later much easier.

3
Attatch your tying thread and run a foundation of thread the full length of the intended body on the needle. I only use Dyneema tying thread, this is a multi filament thread that if spun in the bobbin anti clockwise will open the filaments and lie flat on the hook shank. If spun clockwise the filaments twist together and reduce the size of the thread down to 16/0. This thread comes in only one colour, white, but can be coloured with waterproof felt pens.

4
Sellect 3 long peccary fibres. I like to use Peccary fibres for the larger mayflies and moose hair for the smaller patterns. Tie in the peccary fibers as shown. Its a good idea to choose fibres that are long enough to run the full length of the body, and then some, this will make it stronger and more durable.

5
The dubbing that I use is flyrite, but you can use any synthetic dubbing that has long fine fibres. The long fibres help you wrap the dubbing around the needle and again make the body strong. If you use a straight needle, once you have tied in the tail fibers you can attatch the dubbing material and remove the needle from the vice. You can now roll the needle between finger and thumb of one hand while you feed on the dubbing with your other hand, this makes super fine and even bodies.

6
Attatch your dubbing to your tying thread and begin at the base of the body. Make sure that the dubbing is applied firm and even but not too tight, this will make it difficult to remove when finished.

7
Once you have made a couple of turns of dubbing you can now apply a little glue to the foundation of tying thread Copydex or super glue are best. The wax that you applied earlier will stop it being glued to the needle.

8
Now you can dubb the whole body. Make sure that you get the taper correct, and the right size for the speices you aim to imitate.

9
When you have finished your body tie it off at the base and make 2 or 3 half hitch finishing knots. You now place thumb and index finger each side of the body and carefully loosen the body from the needle by rolling it between your fingers and eas it off the needle. You will now see that the dubbing, tying thread and glue have merged into one hollowbody tube, that should have retained it’s shape.

10
Secure your hook in the vise and attatch your tying thread.

11
Half way down the hook shank you can now tie on your detached mayfly body.

12
Once your body is secure apply a little dubbing on your tying thread, and dubb the rest of the rear of the body. Again make sure that you take your time and get proportions correct.

13
Select a good bunch of long cdc fibres and tie these in almost paradun style to form the wing.

14
Once the wing is secure proceed with dubbing the rest of the mayfly body.

15
When the body is finished taper off the dubbing to form the head.

16
Whip finish and remove the tying thread. And there you have it, the finished cdc mayfly.

17
Front view.

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