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Troutnut Forum > Fly Hatch Talk > Emerger

This topic is about the Mayfly Genus Serratella

These elegant little mayflies are widespread and can be locally abundant enough to produce good hatches, although they are not something most fly fishermen routinely encounter. The important species in the East are Serratella deficiens and, to a lesser extent, Serratella serrata. Serratella tibialis produces good hatches in the West.

The Discussion

MartinlfJune 10th, 2009, 10:18 pm
Palmyra PA

Posts: 1480
Does anyone know the color of the emerging/freshly emerged dun?
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
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Replies:
TaxonJune 10th, 2009, 11:06 pm
Mercer Island, WA

Posts: 714
Louis-

Ask, and ye shall receive:

Scientific name: Teloganopsis deficiens

Previously know as: Ephemerella atrescens, Ephemerella deficiens, Serratella deficiens

Dun body description: dark reddish to blackish brown w/dark red eyes
Dun wings: dark gray to blackish, hind wings w/pronounced costal angulation
Dun legs: white to creamy tan
Dun tails: 3, cream to amber

PS. I understand what you are doing, and salute it!


Roger Rohrbeck
www.FlyfishingEntomology.com
GONZOJune 10th, 2009, 11:34 pm
"Bear Swamp," PA

Posts: 1313
Although all of the deficiens duns that I have seen in hand were quite black in the body and wings, I suspect that there is some darkening after emergence. Perhaps a brownish shade would be good for an emerger as there is a hint of brown in the bellies of the duns. The wings would probably still be blackish.

Like Roger, I applaud your effort to overcome your insect-induced frustrations. I hope the new pattern works well for you.
KonchuJune 11th, 2009, 4:33 pm
Indiana

Posts: 268
I've even seen some that were almost a dark burgundy or purple. Very beautiful.
MartinlfJune 11th, 2009, 10:03 pm
Palmyra PA

Posts: 1480
Cool, thanks Konchu.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
JADJune 11th, 2009, 11:53 pm
Butler--- Western Pa

Posts: 304
Hi All

The above mentioned ---(Dun wings: dark gray to blackish, hind wings w/pronounced costal angulation
Dun legs: white to creamy tan
Dun tails: 3, cream to amber)
That description is dead on, I have only seen the fly on very quiet water, with the trout feeding a normal dry fly rise. I have never seen one escape from the surface or emerge .

JAD

You miss 100 percent of the shots that you don't take."
GONZOJune 12th, 2009, 12:16 am
"Bear Swamp," PA

Posts: 1313
When I read about Woody41's "little black bug" in the "Looking for some info.." thread, I wondered if that might be another encounter with deficiens. Perhaps the photos will come up soon. Eastern fly fishers are often surprised by this relatively unheralded species at this time of the season. Midwesterners seem to be a bit more familiar with it, at least enough to give it the Darth Vader nickname.
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