Hey guys:
Do you know the name of this mayfly or some close to it?
I’ll tell you then, where is it from.
Thanks in advance for the help.
R
does it look like this one? if so, it’s a March Brown, but I am no expert.
With the paler tails and what looks to be a fairly diminutive size…I would say a March Brown. If the tails were darker & it appeared larger?..I would say an early Green Drake from Central PA area. :^)
Calibatis would be my first thought… Slow water , pond or possible a lake…
I think the hind wings are too big for Callibaetis. (Checked Hafele & Hughes) So I vote for March Brown. The wings are a little dark though. Ameletus?
No question. What you have is an adult male specimen of March Brown (Rhithrogena morrisoni). The main tell-tale is the mottled wings. Most of the other major species of mayfly have clear wings. And the gender can be determined as male by the large eyes, longer forelegs (used for grasping the female), and the clearly visible claspers/forceps/genitalia, at the distal end of the abdomen.
Nice picture. I wish I could figure out how to post pictures on the new board. I haven’t had much luck with it.
[QUOTE=Rocketfish;361303]Hey guys:
Do you know the name of this mayfly or some close to it?
I’ll tell you then, where is it from.
Thanks in advance for the help.
R
Normally,
One tells us When, Where, and the Size of the insect! That would eliminate most of the GUESSING !
Nice photo though!
I think you meant plain wings.
Well guys, the mayfly if from Patagonia Argentina. Lago Traful exactly. A 20 miles long, deep, glacial lake. Home of landlocked atlantics, brookies, rainbows and browns.
I took the picture last week, during a calm and sunny mid-morning.
I think is very interesting to compare and study the different species of North and South Hemispheres. Just flyfisher curiosity!,
Some of you said “March Brown”…perhaps we also have one of those here and is not exactly as the American one.
However, the Norhern Hemisphere imitations as Adams, MB, Dark Cahills, together with some local creations, work well for the Southern trout.
Regards,
Rocketfish
Oops. Yes, that is what I meant. In other words, non-mottled…
That’s why I included the correct Scientific Name Rhithrogena morrisoni. It’s the same world-wide. And this species does inhabit South America, all the way to Patagonia. It is a very widely distributed species.
Looks like a bug to me. I’d try a Quill Gordon, or an Adams.
Now where I came from originally (Michigan) we called them Fish Flies. Between the middle of May and June they would start hatching off the lake (Lake St Clair) and back in the days there would be millions of them (not kidding) millions at night time around the street lights or any building light, they were attracted to light for some reason. After flying around for several hours they would then fall to the ground and it was like snow coming down, several accidents would occurr at the traffic lights because they would be anywhere from a dusting to a inch thick on the ground and trying to stop was impossible it was like sliding on ice. Now the worst part was you had to wash your house down every day if you lived close to the lake like we did because they would stink like bad fish during their decomposing cycle. I believe the fish fly would only live for 24 hours or less. Still to this day they hold a large festival every year called the Fish Fly Festival in New Baltimore during the hatch period.