Blog & Latest Updates
Fly Fishing Articles
Insects by Common Name
or register. |
And | June 4th, 2008, 2:20 pm | |
Europe Posts: 14 | Dear all, inspite I have been asking many sources already I have not yet been able to indentify this mayfly. Last day a friend sent me a pitcure of a mayfly he came across in the Yellowstone at Mammut hot spring last July. Well it looked just the same, even though I pictured mine in central Germany. Confiding in your competence I try to the gather your input too. Hope is ok if instead of posting the pics I put a link to them becasue they 9 pics http://www.euroflyangler.de/html/private/eff/effimera.php thanks in advance Andrea | |
Taxon | June 4th, 2008, 7:00 pm | |
Site Editor Royse City, TXPosts: 1350 | Andrea- Your photos are probably of Heptagenia sulphurea. | |
Best regards, Roger Rohrbeck www.FlyfishingEntomology.com | ||
CaseyP | June 4th, 2008, 7:02 pm | |
Arlington, VA/ Mercersburg, PA Posts: 653 | whew! you've got some competition, Jason! well worth the small trouble to copy and paste the link. when do we get this gorgeous specimen on a calendar? | |
"You can observe a lot by watching." Yogi Berra | ||
And | June 5th, 2008, 4:33 am | |
Europe Posts: 14 | Hi Taxon, I'd exclude H.sulphurea for according to my sources it is small (10 to 14mm)and have no brown longitudinal stripe on the back any other guess ? thanks a lot Andrea | |
Taxon | June 5th, 2008, 9:06 am | |
Site Editor Royse City, TXPosts: 1350 | Andrea- That's my only guess. So, how long are they, anyway? Perhaps I missed it, but I didn't think you mentioned any length. That information would likely be useful to others. | |
Best regards, Roger Rohrbeck www.FlyfishingEntomology.com | ||
And | June 5th, 2008, 1:20 pm | |
Europe Posts: 14 | Hi Taxon, I am now in front some literature (mayflies of central Europe - Bauernfeind & Humpesch). In fact I wrongly reported earlier on today about the lenght of E.sulphurea, it is given bewtween 9-12 mm. Sorry, I had it wrong on top of my head. The one in the picture is at least 15 mm (as visible in the picture number 2). The book reports also that in E.sulphurea all the femora are uniformly gray-yellow colored, without bandage or spots (which are instead visible in picuture 9). As well, according to other sources the abdomen (sternite)of E.sulphurea shows no signs or dots (visible on picture 6). One thing in favour of E.sulphurea and that match with the schema shown on Mayflies of central europa are the genitalia though. If this is enough to categorize I do not know. Looking forward to further opinions thanks so far Andrea | |
And | June 17th, 2008, 11:44 am | |
Europe Posts: 14 | Hello I think I solved my conundrum, this is Heptagenia flavia Andrea | |
And | June 19th, 2008, 11:19 am | |
Europe Posts: 14 | Sorry for the typo I meant Heptagenia flava Also the hatching period matches, I took in this pics in May. The dark stripe on the back is typical on the H.longicauda too but this latter shows up later in the year (July). Andrea PS Jason your pictures of the Hexagenia limbata have something that recalls a lot to the pattern of H.flava, the strip on the back and yellow edge on the front wing and the darker margin on the back of the rear wing.. I wonder if they had some common evolution lines :) after all 250 milion year ago there was still Pangea | |
Title | Replies | Last Reply |
Re: What genus this mayfly ? In the Identify This! Board by And | 5 | Apr 22, 2007 by Brookyman |
Re: Any suggestion ? In the Identify This! Board by And | 13 | Feb 23, 2007 by And |
Re: Mayfly: Baetidae? Spain In the Identify This! Board by Isidro | 16 | Jun 4, 2008 by And |
Re: Mayfly: Choroterpes picteti? In the Identify This! Board by Isidro | 8 | Jun 4, 2008 by And |
Re: Heptageniidae? In the Identify This! Board by Willmilne | 5 | May 19, 2009 by GONZO |
?Reliable Taxonomic keys to Species Level? In General Discussion by Fish4va | 0 | |
For all you Central New Yorkers.... In General Discussion by Al514 | 0 | |
Re: Unidentified Colorado Front Range Nymphs. In the Identify This! Board by DangerAF1 | 2 | Apr 20, 2020 by DangerAF1 |
Re: Heptagenia? In the Identify This! Board by Orvisman | 1 | Aug 26, 2018 by Martinlf |
Steamntrout In the Mayfly Species Leptophlebia nebulosa by Steamntrout | 0 |