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Diptera.info :: Family forums :: Syrphidae
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Merodon... equestris? (3 pics)
Rupert Huber
#1 Print Post
Posted on 19-07-2022 18:55
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Location: Germany / South-East Bavaria
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Hi all!

If the legs were all black, as they are supposed to be, I wouldn't ask. But they aren't. So: Is it Merodon equestris?

Approx. 10-12 mm

18.7.2022, Germany, Upper Bavaria, Freilassing, a few metres from little lake "Ausee", ~420 m asl, coordinates 47.84127, 12.99722
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Rupert Huber
#2 Print Post
Posted on 19-07-2022 18:55
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Location: Germany / South-East Bavaria
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2nd pic
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Rupert Huber
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Posted on 19-07-2022 18:56
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Location: Germany / South-East Bavaria
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last pic
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Sundew
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Posted on 21-07-2022 02:58
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Location: Berlin and Baden-W├╝rttemberg, Germany
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Such a loop in wing vein R4+5 is typical for Merodon and Eristalis. However, the shape of cell r4+5 is different in Eristalis, and the bumblebee mimic E. intricaria has also a yellow scutellum. So we have to look for Merodon indeed. There are 10 predominantly rare species in Germany, and the legs of most of them are partly pale. M. equestris with completely black legs (including the hairs) is off the table. It is also not M. moenium (formerly thought to be M. avidus). But the other species are unknown to me. The key for France (https://www.resea...ion_detail) covers most of them, but I am not able to find out a species with your three pictures - sorry! So your female will remain Merodon spec.
Regards, Sundew
Edited by Sundew on 21-07-2022 02:59
 
Rupert Huber
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Posted on 21-07-2022 07:35
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Many thanks for your efforts Sundew!

So another rather complicated genus... again what learned. At least I was right with my heavy doubts about equestris.

This picture shows a bit of the obviously important femur's shape, but with its extremely poor quality, and still not ideal perspective, I of course don't expect it to help much further.
Rupert Huber attached the following image:


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Rupert
 
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