Since the QG supposedly exits it's nymphal shell underwater, the wet fly technique ought to be effective. You will have a lot of pupils that weekend.
http://fishermonk.com/
Since I cannot link to the page and navigation is complicated at that site, I re-print with hoped for acquiescence, the following details:
Epeorus pleuralis
(This is a mayfly species endemic to North America)
COMMON NAMES: Quill Gordon, Gordon Quill, Dark Gordon Quill.
Emergence of E. pleuralis usually marks the beginning of good dry-fly fishing in the Eastern USA.
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NYMPH:
Size: 9 - 11 mm.
Num. tails: 2
Tails: tan with dark specks
Body: dark grayish brown
Wing Cases: dark brownish black
Legs: tan, mottled with brown
Found in water: fast.
Range: East.
Lifestyle: clinger
Other: E. pleuralis nymphs have large, distinct, abdominal gills used as suction cups for clinging to rocks in fast water.
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DUN:
Size: 9 - 11 mm.
Num. Tails: 2
Tails: tan
Body: yellow, mottled with brown
Hind Wings: medium
Wings: slate gray
Legs: tan with dark brown mottlings
Emergence: third week in April to third week in May
Time of Hatch: noon to dusk.
Notes: E. pleuralis duns emerge underwater, often during cold weather, making an emerger pattern very effective.
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SPINNER:
Size: 9 - 11 mm.
Num. Tails: 2
Tails: dark brown
Body: yellow, mottled with brown
Hind Wings: medium
Wings: hyaline (clear)
Legs: tan with dark brown mottlings
Time of Spinner Fall: From midmorning to midafternoon.
Notes:: Spinners usually fall at midday.
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