Wednesday, April 25, 2012

The Killer Crab Assassin Bug (K-CrAB) - SBS

Crabs are tricky little fellows.  And crab flies are also tricky little fellows- to tie at least.  They look extremely simple but there are lots of little techniques and tricks that make tying a crab fly much easier.

There were two flies that stood out in Farquhar.  One was the black brush fly and the other was the K-Crab.  It took Permit, GT's, Triggerfish, Snapper, Emporers, you name it.  Watching a Trigger spot this fly was the most entertaining thing to see.  They jumped on it like a fat kid on stray piece of cake.  You could almost see the expression change on their faces.. like "I cant believe my luck! a crab! Right here!" - Hook set.

Interestingly I tied some without the barred legs (white legs instead).  And one particularly fussy Trigger durned down that and a few other crabs before I tied one of these on.  It hardly even hit the bottom before being eaten.

Materials Needed

Trim claws off tan zonker

The tie in

both claws on (you can leave them long or trim them.  I prefer short claws and will demonstrate the extra steps needed for those)

Tip 1 -Trim excess zonker skin to a "V" shape

Makes for a much smaller profile
The Snip
Cleaning off excess
Cut tips longitudinally to give natural fade out
Like so.
1 of 2 different tones of EP Fibre
Tip 2 - Tie the EP on top. NOT on the bottom like a Merkin.
Tie in as you would dumbells.  I only wrap once either way.  Use heavy thread for added insurance
Tip 3- use lead to tie back original hanks and give you space to work. Tip 4 - whip finish after each addition to thread doesnt slip on your next leg set or EP Fibre section.
Getting there...

Tip 5 - Tie a shoulder to give the dumbells a place to sit

The cover up hank.  Goes over the top of the dumbells.
Like so.
Tip 6 - Pull tight and "roll" each section while pulling tight with the bobbin to keep it neat and tight.
Trimming begins

Ready for weedguard

20 lb PURE flouro.  100% Flouro has enough memory to allow you to bend it to shape after.
Tip 7 - First wrap your weedguard like this and then pull it tight to the shank.  Easiest way to keep it symmetrical.
There she is...
The Killer Crab Assassin Bug. (K-Crab Fly)


  1. Fantastic tutorial Peter,Has fish written all over it!

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  3. Very cool Crab!What were or are our favorite hook and dumbbel sizes for the different species?


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