Thread subject: Diptera.info :: Shiny black Cheilosia
Posted by pierred on 26-05-2016 13:57
#1
Hello,
Pierre Duhem : France : Saint-Mitre-les-Remparts : 13920 : 08/05/2016
Altitude : 53 m - Taille : 8-9 mm
Réf. : 162853
I had initially thought it was
C. pagana, because of the orange antennas, but another member of our French forum thinks it is
C. sorror. The antennas of this later species are indeed smaller and rounder.
What do you think about it?
Thanks in advance.
Edited by pierred on 17-06-2016 07:44
Posted by piros on 26-05-2016 17:19
#2
Can C. scutellata be ruled out?
Greetings,
Henrik
Posted by pierred on 26-05-2016 19:33
#3
Hi Piros,
I don't know.
Posted by pierred on 29-05-2016 07:28
#4
I believe that the third antenna segment of
C. scutellata is brown.
Posted by Ectemnius on 16-06-2016 22:16
#5
Hello pierred and piros,
Humeri and tip of scutellum are orange so scutellata group, excluding the possibility of C. pagana. Red antennae -> Cheilosia sorror.
Greetings,
Ectemnius
Posted by pierred on 17-06-2016 07:44
#6
Ectemnius,
Thanks for those criteria.
Posted by pierred on 17-06-2016 15:03
#7
I'm afraid I don't understand what you said. According to van Veen,
C. scutellata is member of the
C. pagana group, isn't it? What is your conclusion?
Posted by Ectemnius on 17-06-2016 15:39
#8
Hi pierred,
The scutellata group (I thought there was something like that, but it might be just something I made up :S) is artificial just like the pagana group. I referred to the scutellata group as the species with yellow humeri and top of scutellum. Those being in North-West Europe C. scutellata, C. sorror and C. longula. Of those three only C. sorror has a bright red third antennae segment.
Greetings,
Ectemnius
Posted by pierred on 17-06-2016 20:13
#9
Thanks for taking the time to comment.
I must confess that I'm completetly lost.
