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Diptera.info :: Family forums :: Syrphidae
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Platycheirus ambiguus (male) ? -> correct
Axel D
#1 Print Post
Posted on 04-04-2023 14:04
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Location: France
Posts: 209
Joined: 16.10.15

Hello

Here is a hoverfly caught today in my garden. I think it's a male Platycheirus but fore tarsi are not inflated contrary to P. albimanus which seemed close at first sight. There are 3 pairs of grey spots on the abdomen, antenna are entirely black. With this description, it seems to be closer to ambiguus group. And there is a curled bristle near the end of fore femora which seems to be typical of P. ambiguus (at least in Great Britain and in Belgium/Netherlands). What do you think about this hoverfly ?

Found in Rosny-sous-Bois, Seine-Saint-Denis, Île-de-France, France
On the 4th of April 2023
Body length : around 8 mm

Picture #1 : dorsal view
Axel D attached the following image:


[294.98Kb]
Edited by Axel D on 04-04-2023 20:41
 
Axel D
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Posted on 04-04-2023 14:05
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Picture #2 : lateral view
Axel D attached the following image:


[215.73Kb]
 
Axel D
#3 Print Post
Posted on 04-04-2023 14:06
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Picture #3 : fore leg detail (blue arrow = uninflated tarsus, green arrow = curled bristle)
Axel D attached the following image:


[111.56Kb]
 
JWV
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Posted on 04-04-2023 17:24
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Location: Wageningen
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Hi Axel,

I totally agree with P ambiguus. Note also the inflated dusted frons and of course the bristle you indicated. Here https://www.googl...mF-XSQJCIP you can find a link to the revision of the ambiguus-group.

Best, Jonne
 
Axel D
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Posted on 04-04-2023 20:41
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Thank you Jonne for your answer and your link.

A new species for me.Smile
 
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