Sparkle Dun

Created by Craig Mathews and John Juracek



HOOK: 1X fine wire, standard shank, turned-down eye; e.g., TMC 100 or equivalent. Sizes 14-20

THREAD: To match body

WING: Deer hair. When done tying, flare the wing so it forms an upright semi-circle over the fly.

TAIL: Tan Z-lon; not too thick

BODY: Biot, or Superfine or other dubbing to match natural insect


Imitates a hatching mayfly dun. Use during a hatch when the duns are on the water and trout are feeding on them.

The Sparkle Dun is one of the most useful styles to learn to tie. It is not a difficult pattern to master, and it catches fish. Essentially, the fly is a Comparadun with a Z-lon tail that represents the shuck the dun has just emerged from. It's a clever and effective innovation.

Why does it work so well? Because a dun that has just emerged from the shuck has to dry its wings before it can fly off; thus, it will be on the water for the maximum amount of time. If you were a trout, which mayfly dun would you prefer: one that might fly away before you sip it down, or one that is guaranteed to still be there after you spend the energy to reach it?



Mayflies can be imitated by using hook sizes and body colors that match the natural insect. If you're feeling ambitious, you can use different colors of deer hair for the wing.

A useful variation is the CDC Sparkle Dun, which uses CDC fibers for the wing. This latter variation is sometimes tied with a mallard flank wing in front of the CDC, but I don't think the trout care if the mallard flank is there or not.


How to Fish

Dress the fly with floatant and use standard dry fly presentations.



Select Another Fly

Find fly patterns by type, food, or name. Searchs can cover just Westfly's standard patterns or the entire database.

Fly Type

Standard Flies Only?   Or All Flies?

. . . or Imitation

Standard Flies Only?   Or All Flies?

. . . or Fly Name