Thread subject: Diptera.info :: Platycheirus ambiguus (male) ? -> correct

Posted by Axel D on 04-04-2023 14:04
#1

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

Edited by Axel D on 04-04-2023 20:41

Posted by Axel D on 04-04-2023 14:05
#2

Picture #2 : lateral view

Posted by Axel D on 04-04-2023 14:06
#3

Picture #3 : fore leg detail (blue arrow = uninflated tarsus, green arrow = curled bristle)

Posted by JWV on 04-04-2023 17:24
#4

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

Posted by Axel D on 04-04-2023 20:41
#5

Thank you Jonne for your answer and your link.

A new species for me.:)