Thread subject: Diptera.info :: Larva in small "pool" of a trunk - ID? --> possibly Sphegina (Syrphidae)

Posted by kuv on 25-04-2022 13:57
#1
Northern Germany, Schleswig-Holstein, Pinneberg-Waldenau near Hamburg, mixed forest Klövensteen, in a hole of an old sawed off trunk (pinetree), filled up with (rain)water, length of the larva: I think about 35 mm, moving all the time and never lost the connection to the air; 12th of April 2022. Outsidephotos: kuv.
ID possible?
Kuv
Edited by kuv on 26-04-2022 09:14

Posted by kuv on 25-04-2022 13:58
#2
2nd picture:

Posted by kuv on 25-04-2022 13:59
#3
3rd picture:

Posted by kuv on 25-04-2022 14:00
#4
... and here is the trunk:

Posted by atylotus on 25-04-2022 18:57
#5
I would say Syrphidae larvae but this is unknown to me. If i look in Graham Rotheray's key...Colour guide on hoverfly larvae I see some resemblance with Tropidia, with these obvious lateral lobes at the tail, but genus not sure

Posted by Iain MacGowan on 25-04-2022 19:56
#6
Sphegina ?? with a shortish posterior breathing tube with 3 pairs of lappets at the base

Posted by atylotus on 25-04-2022 21:17
#7
Sphegina also came to mind, so that is definitely als a good possibility.

Posted by kuv on 26-04-2022 09:13
#8
Thank you very much Atylotus Smile and Iain Smile for your answers. I 'll keep "Syrphidae" and "Sphegina" in my mind in order to find perhaps more details ...
Greetings Kuv