How to Tie: The Mop Fly

In this week’s How to Tie video feature, Tim Cammisa from Trout and Feather shows us how to tie the mop fly.

Learn about this fly

Difficulty: Novice

The mop fly has been one of the most controversial flies that has hit the water since the squirmy wormy. Some traditionalists may scoff at the thought of even considering this Frankennymph a “fly”, while other more open-minded anglers may believe it’s a gift from the heavens. No matter your personal position, there is one thing everyone can be sure of…this fly catches fish.

Often times considered a cousin of the PA born Green Weenie fly, the Mop Fly capitalizes on its fluorescent green body and its notable ability to wriggle underwater. When fished, this fly presents itself as some sort of larvae similar to the crane fly, and acts as a perfect attractor to stubborn trout. Anglers have shared stories of not seeing a fish all day, then switching flies to quickly find trout literally fighting over their fluorescent droppers.

As Tim remarks, this fly is an easy 2-minute tie. Due to their simple construction, and minimal steps, any tier can knock out an entire batch of these flies within 20 minutes. One thing to note is that when looking for the “mop” part of the fly, instead of waiting for a delivery in the mail, take a quick trip to your local hardware/ cleaning supplies store and look for mop materials. There, you’re sure to find the perfect body materials for an extremely fair price.


  • Hanak H 450 BL; sizes 10-12
  • Silver tungsten; 3.5 mm
  • .010 lead free wire
  • 6/0 UNI; chartreuse tying thread
  • Body: Mop material
  • Siman Peacock Dubbing; Peacock Black

Now you know how to tie the Mop Fly!

Video and Ingredients courtesy of Tim Cammisa

Article written by Flylords team member Wills Donaldson 

How to Tie: Crane Fly Larva

How to Tie: Green Caddis Larva

How to Tie: The Egg Sucking Leech



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