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SandflyMarch 31st, 2012, 12:46 pm
tioga co. pa.

Posts: 33
on going argument about this fly, i say black quill(Leptophlebia cupida) , otheres say blue quill (Paraleptophlebia Adoptiva) what say you ?
sandfly
shop owner
N.J.B.B.A. #2215
Tiadaughton T.U. 688
I didn't Escape------They gave me a day pass !
TroutnutMarch 31st, 2012, 1:01 pm
Administrator
Bellevue, WA

Posts: 2543
It's Paraleptophlebia.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
EntomanMarch 31st, 2012, 1:46 pm
Northern CA & ID

Posts: 2604
Sandfly,

I agree with Jason. The two genera are very similar morphologically, and though your photo doesn't provide the detail necessary to see many characters, L. cupida is a much larger insect and wouldn't usually be found in the kind of water that appears in the background. Also the tails are longer with the terminal filament (middle tail) noticably reduced on cupida. You didn't mention time of year or location, but assuming it's a recent photo and was taken in PA, this is undoubtedly a specimen of P. adoptiva (Blue Quill aka Mahogany Dun). The other Paraleptophlebia possibilities hatch later in the season, several much later.
"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman
CrepuscularMarch 31st, 2012, 1:47 pm
Boiling Springs, PA

Posts: 919
Looks like Paraleptophlebia to me.
KonchuMarch 31st, 2012, 1:53 pm
Site Editor
Indiana

Posts: 496
coloration and wing shape are like Paraleptophlebia
SandflyApril 1st, 2012, 6:31 am
tioga co. pa.

Posts: 33
Thanks everyone, just seemed to dark to me..
sandfly
shop owner
N.J.B.B.A. #2215
Tiadaughton T.U. 688
I didn't Escape------They gave me a day pass !
KonchuApril 1st, 2012, 1:27 pm
Site Editor
Indiana

Posts: 496
Just to mix things up a bit, and to spark some discussion, I'll throw the North American genera Habrophlebia and Habrophlebiodes into the mix here. In hand, how do you tell the duns of these, and most Paraleptophlebia apart?

Hint: I think one may be a little darker than the others and usually has more of an abdominal colour pattern.

What about wing shapes? Is size important in this instance?
EntomanApril 1st, 2012, 3:26 pm
Northern CA & ID

Posts: 2604
Luke -

I think we would be going a bit too far in the other direction with those generic possibilities. They're mostly under 5 mm, aren't they? I'm estimating the size of this critter at somewhere in the 7 - 8mm range. It is difficult to go by wing and body characters as the photo is blurry and stretched. If it weren't, I'd be looking closely at the tails and the hind wings for costal projection shape and location (if any) and also the forelegs.

As far as the body color hint, Habrophlebia vibrans (the only species of that genus known for North America) has a unique pattern of white triangles with a dark background on the middle 5 terga. Their opposite 5 ventral segs are almost solid white. Is that what you are referring to?

I suppose the species Leptophlebia johnsoni would have been an option if this specimen were a little larger, as it runs smaller than others in its genus. They can be fairly difficult to tell from larger Paraleptophlebia specimens when the latter approach 10mm.
"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman

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