Blue-winged Olive Emerger:
This is our "Perfect Fly"
Blue-winged Olive Emerger.
Flies: Mayflies
Fly Fishing the Great Smoky Mountains National Park
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Blue-winged Olive Spinner:
This is our "Perfect Fly"
Blue-winged Olive Spinner..
Blue-winged Olive Dun:
This is our "Perfect Fly"
Blue-winged Olive Dun.
The following flies are what we recommend for
the various mayflies in the streams of the Great
Smoky Mountains National Park. The nymph is
weighted and designed to stay on or near the
bottom. The emerging nymphs is often the same
fly, with no weight. It imitates those mayflies that
hatch in the surface skim just before it hatches. It
should be fished near or in the surface skim. The
emerging dun with a trailing shuck is part shuck
and part dun. It imitates the hatching mayfly and
should be fished in the surface skim. The dun is
a dry fly that should be fished on the surface
imitating the mayfly dun before it departs the
water. It can also be used to imitate those
females that deposit their eggs on the surface.
The emerging adult is a wet fly designed to
imitate those mayflies that hatch below the
surface from the bottom to near the surface. The
spinner is a spent dry fly that imitates the dead or
dying mayflies.
Please keep in mind that we are not recommending any
of these companies over anyone else that sells the same
fly. We have no return favors, commission or other
consideration for listing them. Our only purpose is to
provide you, the viewer of this site, information that is
useful. Because there are so many takeoffs and patterns
with similar names we want to recommend specific flies
that you can obtain commercially. For those that tie their
own flies, we will also provide our on "Perfect Fly
Patterns" that will soon be shown in our Fly Tying DVDs. .
Troutflies.com has the best selection of flies we know of.
Umpqua is a fly manufacturer that sells flies through
several on line stores and retail outlets such as Bass Pro,
Cabelas, LL Bean, The Fly Shop, and others. Some of
the local fly shops also carry Umpqua flies.
Blue Quill and Mahogany Duns:
Paraleptophlebia adoptive and other species
Abundant, common distribution
Nymphs:
Troutflies.com: Mahogany Nymph: 18
Emerging Nymphs:
Troutflies.com: CDC Emerging Midge-Dark Dun:
18
Emerging Dun with Trailing Shuck:
We have not found a good commercial pattern
Duns:
Blue Quill: 18
Spinners:
Troutflies.com: CDC Biot Paraspinner
(Harrop) 18
Orvis: Indicator Spinner: Mahogany: 18
Quill Gordons:
Epeorus pleuralis
Abundant, scattered distribution
Nymphs:
Pheasant Tail Nymph: 12, 14
Emerging Nymphs: Not Applicable
Emerging Dun with Trailing Shuck: Not Appli.
Emerging Adults: (Wet Flies):
Troutflies.com: Isonychia Emerger: 12, 14
(This is not a mistake-just the closest fly we can
find))
Duns:
Troutflies.com: Quill Gordon: 12, 14
Quill Gordon: 12, 14
Spinners:
Troutflies.com: CDC Biot Paraspinner (Harrop):
14
Orvis: Indicator Spinner: Mahogany: 14
Eastern Blue-winged Olives:
Drunella species
Modest Abundance, scattered distribution
Nymphs:
Troutflies.com: Baetis Nymph: 16
Emerging Nymphs:
CDC Mayfly Emerger: Olive: 16
Emerging Dun with Trailing Shuck:
Sparkle Dun: Olive: 16
Emerging Adults: (Wet Flies) Not Applicable
Duns:
Blue-winged Olive Parachute: 16
Spinners:
A.K.'s Spinner: Olive: 16
Small Eastern Blue-winged Olives
slight abundance, isolated distribution
Attenella
Nymphs:
Troutflies.com: Baetis Nymph: 20
Mercer's Poxyback Baetis: 20
Emerging Nymphs:
Troutflies.com: CDC Biot Captive Dun: (Harrop):
20, 22
Emerging Dun with Trailing Shuck:
Sparkle Dun: Olive: 20
Emerging Adults: (Wet Flies) Not Applicable
Duns:
Blue-winged Olive Parachute: 20
Spinners:
Crystal Spinner: Rusty: 20, 22
Blue-winged Olives:
widespread abundance, modest distribution\
Baetis and Others
Nymphs:
Troutflies.com: Baetis Nymph: 18, 20
Mercer's Poxyback Baetis: 18, 20
Emerging Nymphs:
Troutflies.com: CDC Biot Emerger: 18, 20
Emerging Dun with Trailing Shuck:
Sparkle Dun: Olive: 18, 20
Emerging Adults:
Duns:
Blue-winged Olive Parachute: 18, 20
Spinners:
A.K's Spinner: Olive: 18
Crystal Spinner: Rusty: 20
Little Blue-winged Olives:
widespread abundance, modest distribution
Acentrella, Diphetor, Plauditus & Timpanoga sp
Nymphs:
Troutflies.com: Baetis Nymph: 20
Mercer's Poxyback Baetis: 20
Emerging Nymphs:
Troutflies.com: CDC Biot Captive Dun: (fHarrop)
20, 22
Emerging Dun with Trailing Shuck:
Sparkle Dun: Olive 20
Emerging Adults: (Wet Flies) Not Applicable
Duns:
Blue-winged Olive Parachute: 20, 22
Spinners:
Crystal Spinner: Rusty: 20, 22
Sulphurs:
Isolated abundance, slight distribution
Ephemerella dorothea
Nymphs:
Mercer's Poxyback Sulphur: 16, 18
Emerging Nymphs:
Troutflies.com: CDC Biot Emerger: Sulphur: 16,
18
Emerging Dun with Trailing Shuck:
Sparkle Dun: Sulphur: 16, 18
Emerging Adults: (Wet Flies) Not Applicable
Duns:
Sulphur Parachute: 16, 18
Umpqua: Sulphur Dun: 14, 16 & 18
Spinners:
A.K's Spinner: PMD: 16, 18
Indicator Spinner: Sulphur 16
Umpqua: Beck's Spinner-Sulphur 16
Eastern Pale Evening Duns:
modest abundance, slight distribution
Ephemerella invaria
Nymphs:
Mercer's Poxyback Sulphur: 14, 16
Emerging Nymphs:
Troutflies.com: CDC Biot Emerger: Sulphur: 16
Emerging Dun with Trailing Shuck:
Sparkle Dun: Sulphur: 14, 16
Emerging Adults: (Wet Flies) Not Applicable
Duns:
Sulphur Parachute: 14, 16
Spinners:
A.K's Spinner: PMD 14, 16
Indicator Spinner: Sulphur: 16
Hendricksons and Red Quills:
modest abundance, scattered distribution
Ephemerella subvaria
Nymphs: (Dark Blackish Brown)
Emerging Nymphs: Male: (Red Quill):
Red Quill Emerger: 12, 14
Emerging Nymphs: Female:
Emerging Nymphs with Trailing Shuck: Male:
Red Quill:
Emerging Dun with Trailing shuck: Female:
Emerging Adults: (Wet Flies) N/A
Duns: Male: (Red Quill):
Hendrickson-Dark: 14
Umpqua: Hendrickson-Dark: 14
Duns: Female:
Hendrickson Light: 12
Umpqua: Hendrickson Light: 12
Spinners: (Red Quill): Male: (Dark Reddish
Brown)
Spinners: Female: (Med. Rusty Brown)
Rusty Spinner: 14
Little Dark Hendricksons:
trickling abundance, Isolated distribution
Serratella sp
Nymphs: (Black)
Emerging Nymphs:
Emerging Dun with Trailing Shuck:
Emerging Adults: (Wet Flies) N/A
Duns: (Dark Brown body w/ med. gray wings)
Spinners:
Snowshoe Spinner: Dark Mahogany: 18
Troutflies.com: Rusty Spinner: 18
Large Dark Hendricksons:
trickling abundance, isolated distribution
Timpanoga sp
Nymphs: (Dark Reddish Brown)
Emerging Nymphs:
Emerging Dun with Trailing Shuck:
Duns: (Reddish Brown)
Spinners: (Dark Reddish Brown)
(Note: there are so few of these we recommend
using march brown imitations although these are
crawlers and not clingers)
Eastern Green Drake and Coffin Fly:
modest abundance, Isolated distribution
(Abrams Creek) Ephemera guttulata
Nymphs:
Mercer's Poxyback Green Drake: 10
Eastern Green Drake Nymph: 8
Emerging Nymphs:
UmpquaCDC Green Drake Emerger 12
Emerging Dun with Trailing Shuck:
Duns:
Eastern Green Drake: 8, 10
Umpqua: Oliverio's Evergreen Eastern Green
Drake: 8 & 10
Spinners:
Umpqua
Evergreen Coffin Fly 8 / 10
Brown Drake:
trickling abundance, isolated distribution
Ephemera simulans
Nymphs: (Light Yellow/Tan)
Emerging Nymphs:
Emerging Dun with Trailing Shuck:
Duns:
Troutflies.com: Brown Paradrake: 12
Umpqua: Lawson's Brown Drake Standard: 10
Spinners: (Reddish Brown)
Dark Red Quill:
trickling abundance, isolated distribution
Cinygmula subaequalis
Nymphs: (Dark Reddish Brown) 12, 16
Emerging Nymphs:
Emerging Dun with Trailing Shuck:
Duns: (olive-brown slate wings) 12 16
Spinners:
Umpqua: Rusty Spinner: 12, 14, 16
Slate Drake:
very abundant, widespread distribution
Isonychia bicolor
Nymphs:
Mercer's Isonychia: 12, 14
Emerging Nymphs:
Troutflies.com: Isonychia Emerger: 12,14
Emerging Dun with Trailing Shuck: N/A
Dun: N/A
Spinners:
Umpqua: Rusty Spinner 14
American March Browns:
abundant, common distribution
Maccaffertium vicarium
Nymphs:
Oliver Edward's March Brown Nymph:10,12
Umpqua: March Brown Nymph: 12, 14
Emerging Nymphs:
Emerging Dun with Trailing Shuck:
Emerging Adults: (Wet Flies) N/A
Duns:
Grey Fox: 12
American March Brown: 12, 14 Umpqua
Spinners:
Umpqua: Rusty Spinner 14
Light Cahills:
abundant, common distribution
Stenacron interpunctatum
Nymphs: 12 14 (Dark Reddish Brown)
Umpqua: March Brown Nymph: 12/14 (close)
Emerging Nymphs:
Emerging Dun with Trailing Shuck:
Emerging Adults: (Wet Flies): N/A
CDC Mayfly Emerger: 14
Duns:
Light Cahill, 12, 14, 16 & 18 Umpqua
Light Cahill: 12, 14
Spinners:
Umpqua: Rusty Spinner: 14
Light Cahills:
Modest abundance, isolated distribution
Maccaffertium species
Nymphs: 12, 14 (Amber)
Emergng Nymphs:
Emerging Dun with Trailing Shuck:
Emerging Adults: (Wet Fly) N/A
CDC Mayfly Emerger: 14
Duns:
Light Cahill, 12, 14, 16 & 18 Umpqua
Light Cahill: 12, 14
Spinners:
Umpqua: Rusty Spinner: 14, 16, 18
Cream Cahills:
Modest abundance, common distribution
Maccaffertium sp
Nymphs: 12, 14, 16 (Dark Brown)
Emerging Nymphs:
Emerging Dun with Trailing Shuck:
Emerging Adults: (Wet Flies) N/A
Duns:
(Note: The duns have a creamy white to pale
yellow body and pale gray wings - we know of no
commercial fly that accurately represents this
mayfly)
A.K's Quill Dun: 16
Spinners:
Umpqua: Rusty Spinner: 14, 16
Little Yellow Quills:
abundant, common distribution
Heptagenia Group
Nymphs:
(note: these clinger nymphs are a very dark olive
brown almost black color)
Mercer's Poxyback: 16, 18
Emerging Nymphs:
Travis Hi-Vis PMD Para Emerger: 16, 18
Emerging Dun with Trailing Shuck:
PMD Sparkle Dun: 16, 18
Emerging Adults: (Wet Flies) N/A
Duns:
Etha-winged Dun: 16, 18
(Note: The dun has a light pale yellow body and
pale gray wings - we know of no commercial fly
that accurately represents this mayfly)
Spinners:
Trout Flies: Rusty Spinner 16, 18
Umpqua: Rusty Spinner 16, 18
Note:
Where we note a trickling abundance of a mayfly,
we recommend using imitations of them only
when you detect a hatch or abundance of
nymphs in the water of that particular mayfly.
Otherwise, you would be better off using an
imitation of a mayfly nymph that is more
abundant for the particular area of the stream, or
off course, if occurring, a dry fly dun or spinner for
the hatch of a more abundant mayfly.
Copyright 2007 James Marsh
Quill Gordon Nymph::
This is the clinger nymph of
the Quill Gordon. Also, note
just below that it only has two
tails.
Epeorus pleuralis nymph:
A Quill Gordon showing off its
two tails.






Eastern Blue-winged Olive:
Three short tails and heavy
front legs are a couple of
things that help identify this
mayfly nymph from this image
taken at Little River.
Little Blue-winged Olive:
This is one of many species
of Little Blue-winged olives.
"Perfect Fly" Supper Swimmer
Nymph:
This is our own pattern for those
larger swimming nymphs. By
changing the colors of the
material used you can match any
of the larger swimming nymphs
such as the Slate Drakes found
in the Smokies. When it is
submerged in the water, its tails,
legs and gills move with the
currents and imitates the large
swimmers well.
Selecting a fly
Tying "Perfect Mayfly
Nymphs" : This new
instructional DVD (& CD of
recipes) teaches you how to
tie 7 basic "Perfect Fly"
patterns. By changing the
sizes and colors of materials
according to the recipes, you
can tie over 80 specific
imitations or flies that imitate
all the important species of
mayfly nymphs.
Tying "Perfect Mayfly Duns,
Emergers & Spinners": This
new instructional DVD (& CD
of recipes) teaches you how
to tie 7 basic "Perfect Fly"
patterns. By changing the
sizes and colors of materials
according to the recipes, you
can tie over 120 specific
imitations or flies that imitate
all the important species of
mayfly duns, spinners and
emerging duns.
Hendrickson Nymph
Hendrickson Female Spinner
Hendrickson Male Spinner
Red Quill
Hendrickson Female Dun
Hendrickson Male Dun
Red Quill