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River diving in Switzerland

maggia verzasca switzerland

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#1 benedika

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Posted 19 July 2018 - 09:49 AM

Hi,

 

i spent a couple of days in Switzerland. I wanted to dive a mountain lake, but the road was still closed, so we end up in the river Maggia.

If anyone has an idea of the strange critter in the video (the same critter is at the end of the video with a fly!!!) please tell me.

I also posted in the Critter ID here on WP.

 

 

Watch what Maggia is like:

 

 

https://youtu.be/_bsIOvnkBuE

 

 

 

Alex



#2 Tom_Kline

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Posted 19 July 2018 - 10:10 AM

Hard to tell from your vid. See this:https://www.youtube....h?v=hXfoFx-MY6s

If they are large they are more likely to be one of these. As suggested by this vid there is a lot of range in size. Many of the adults are quite large.

 

This might be useful:

http://lifeinfreshwa...ata-anisoptera/

 

and this:

https://www.nature.n...s_june-2014.pdf

This last one has nice pix and a key but is US-centric.

 

Maybe finding something in German, French or Italian might get you closer


Edited by Tom_Kline, 19 July 2018 - 10:18 AM.

Thomas C. Kline, Jr., Ph. D.
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Currently used housed digital cameras: Canon EOS-1Ds MkIII, EOS-1D MkIV, and EOS-1DX; and Nikon D3X. More or less retired: Canon EOS-1Ds MkII; and Nikon D1X, D2X, and D2H.

Lens focal lengths ranging from 8 to 200mm for UW use. Seacam housings and remote control gear. Seacam 60D, 150D, and 250D, Sea&Sea YS250, and Inon Z220 strobes.

http://www.salmonography.com/

 


#3 benedika

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Posted 19 July 2018 - 11:50 AM

Hard to tell from your vid. See this:
If they are large they are more likely to be one of these. As suggested by this vid there is a lot of range in size. Many of the adults are quite large.
 
This might be useful:
http://lifeinfreshwa...ata-anisoptera/
 
and this:
https://www.nature.n...s_june-2014.pdf
This last one has nice pix and a key but is US-centric.
 
Maybe finding something in German, French or Italian might get you closer

Thank you for the links! The critter looked more like the one from the youtube link, with the gills on the end.

globaldivemedia.com

#4 benedika

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Posted 19 July 2018 - 11:54 AM

Got it! Its a Flathead mayfly nymph
 


Edited by benedika, 19 July 2018 - 12:43 PM.