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Mayfly ID

timinator

Gotta get out there
Can someone ID this mayfly? It was on my screen window. Also I don't live too close to any water (about a 1/4 mile from the Schuylkill River).
 

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That would be a sulphur dun. I am glad to see them out, they are one of my favorite hatches.

beeber
 
If...

If Joey T wasent banned he would have answered this question... and possibly more in depth.

To bad :shrug:
 
Looks a bit like a Light Cahill (Stenonema Canadensis).
Head to Tail, about 7/8" ???
If larger, and "browner" than the photo looks on my monitor, it could be a Grey Fox ( S. Fuscum), or a March Brown (S. Vicarium). (Source Streamside Guide, Flick, 1969)

Sulpher? I thought they had 3 tails. (Source Hatches Caucci/Nastasi, 1975 edition)
 
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But where did this hatch with no water around to speak of? Also the fly was pretty big, about 1.5 inches including tail.
 
"Sulphur" is a common name that covers a lot of different bugs. Most commonly in the east it is used for Ephemerella dorothea and E. invaria, but it is also used for members of the Stenacron Genus.

This little guy is probably Stenacron interpunctatum (re-classified from Pete's ID of Stenonema canadense). Stenacrons aren't normally hatching until June. Has it been warm and low water in your area? Any of your sulphur patterns will cover the hatch.

Mayflies can get blown around and travel some distance from water. How far away is the nearest stream. The stream doesn't have to be big, or even hold trout to have a nice insect population.
 
timinator said:
But where did this hatch with no water around to speak of? Also the fly was pretty big, about 1.5 inches including tail.


You said you are a 1/4 mile from the river. It's definately within thier ability to fly that far. Do you leave an outside light on overnight?


~James
 
Pete,

I didn't mean to offend. I just wanted to post the updated name (actually it is a synonym). The species are being re-classified so fast that even the most recent books have become out dated.

You can use the cross reference or just go to Mayfly Central's species list and look up to see if there has been a change. The way I do it is to open the list Here. Hit Control "F" on my keyboard (brings up the find window). And search for the species. If the species that I was searching for is indented then it has been re-classified to the species that is at the head of the list. There is also a guide to reading the list here.

Jeff
 
No offense was taken, I just wasn't aware that Flick's book was that out of date.

Thanks for the links.
 
jmoore said:
Epeorus vitreus do not have those markings on their wings.


You are correct - looks like a grey fox or light march brown - and in checking,
Mccaffertium vicarium ( grey fox ) F Heptageniidae have 2 tails

I am wrong.
I should have looked more closely.

Good catch
Besides - it's too early for e.pl
 
I would still use a Shenk's sulphur for that guy regardless of the species. White tail and hackle, no wing, cream body and orange thorax. A classic for this time of year.
 
hhmmmmm.
a yellow Quill Gordon....doubt it..

Epeorus Vitreus.

In the end, does it matter? Only to a few that like to preach latin from their soapboxes.
 
No one is preaching anything.

The fascinating thing about fly fishing is that there are so many different areas that you can get involved in. Some people really enjoy the casting and analyze it to no end. Some people are gear heads and and like to try every trinket that comes out on the market. Some people like to tie flies and would rather tie than fish. Some people like bugs...

To each his own.
 
its a light cahill, sulfers do not have the veins showing in the wings, also it has 2 tails, which wouls put in the epouris family...
 
It is hard tell how dark or light the real color is with the sun hitting so directly from behind. The two speckled tails, wing venation, size (1 1/2 inches long) and dark bands on the top of the abdomen say March Brown - the sun angle may make it look much lighter than it was. If not, it's probably a big light cahill. Either way, nice pic.
 
You guys get to bent outta whack. Just tie up some Yeller Adams and go catch fishes.:beer:
 
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