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|  » Stats |
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| | Welcome to our newest member, Ye Olde Justin | |  | 
09-06-2011, 09:58 AM
| | Active Member | | Join Date: Mar 2010
Posts: 62
| | | Brown mayfly?
Can anyone confirm my ID of this mayfly (emerged very early in April..) as the Brown Mayfly Ephemera vulgata? The abdomen seems darker than the Green drake mayflies I usually see (Epehemera danica) but this was at a different site where the river flows more slowly.
25.4.11 c15mm resting on Nettle by riverbank (many were dancing), near Bath, UK.
Nick Upton - naturalist / photographer  
Last edited by NickU; 09-06-2011 at 10:00 AM.
Reason: attached same picture twice
|
09-06-2011, 10:20 AM
|  | Wild Member | | Join Date: Mar 2008 Location: West Stirlingshire
Posts: 162
| | | Re: Brown mayfly?
Wouldn't happen to be Box Brook by any chance? I'm 99% certain it's vulgata - just by it's colouring - and I know there are vulgata present in that area.
The proof would be to check if there are very distinct triangles on the first few segments of the body - but the picture doesn't show that. |
09-06-2011, 10:34 AM
| | Active Member | | Join Date: Mar 2010
Posts: 62
| | | Re: Brown mayfly?
Thanks Endrick. No this was from a sluggish section of the Avon between Claverton and Conkwell. I know the By Brook well (Colerne area) though and am pretty sure other mayflies I have photographed there were the paler E danica (which I hope you've seen too, or I will start to doubt that ID!), but E vulgata may well be there too. I don't have any other angles /closer views to offer on this one. |
09-06-2011, 11:00 AM
| | Wild Member | | Join Date: Mar 2008 Location: West Stirlingshire
Posts: 162
| | | Re: Brown mayfly?
I saw some Vulgata around the Batheaston area of the brook many years ago. The densest hatches I've ever seen of Vulgata were in your area at a set of flooded workings by South Cerney. I don't even know if they still exist as that was over 25 years and 400 miles ago! |
09-06-2011, 11:09 AM
| | Active Member | | Join Date: Mar 2010
Posts: 62
| | | Re: Brown mayfly?
My site was about 3 miles south of Batheaston, but on the Avon itself, not the By Brook tributary, but good to know E. vulgata is known very locally. As for South Cerney, there is a water sports centre there now, so dunno how the mayflies will be faring! | | |
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