Thread subject: Diptera.info :: Callicera macquarti --> Callicera aurata

Posted by Christine Devillers on 13-11-2007 14:26
#1

I saw this Callicera on flowers of Allium porrum.
Spa, Belgium, 2004-07-27
Antennal segment 2 short, femora mostly black, all tibiae orange and the look of the hairs on scutellar disc make me think to C. macquarti but in Belgium I think there is only aenea, fagesii and rufa.
What do you think?

Christine

Edited by Christine Devillers on 25-10-2023 12:22

Posted by Christine Devillers on 13-11-2007 14:28
#2

Picture 2

Posted by Guenter on 13-11-2007 19:55
#3

Using Speight's key on Callicera my result is also C. macquartii (also because of the lack of black hairs on the abd. tergites)

Edited by Guenter on 13-11-2007 19:55

Posted by Gerard Pennards on 13-11-2007 20:46
#4

Yes, a fermale C. macquarti!
Very, very nice find!!
Greetings,

Posted by Gerrit Oehm on 03-09-2016 14:21
#5

Maybe you would like to add your pictures to the Gallery? - Because I have seen that we do not have C. macqarti there yet.

Posted by Christine Devillers on 11-01-2017 17:41
#6

ok I've add those pictures in the gallery.

Christine

Posted by Christine Devillers on 28-07-2023 16:03
#7

Checking again all the pictures I’d taken, I saw that the size of the antennal segments do not match with those of macquarti.
Here are some pictures where the antennal segments are better visible. The antennal segment 3 is about as long as antennal segments 1+2 together so it can’t be macquarti which has antennal segment 3 twice as long as antennal segments 1 + 2 together.

I think it is a female of Callicera aenea because :
- femora extensively black
- mesoscutum completely dull with 4 longitudinal stripes of dusting extending to the scutellum and hairs on posterior margin of scutellum as long as the scutellum

Christine

Posted by Christine Devillers on 28-07-2023 16:04
#8

Picture 4

Posted by Christine Devillers on 28-07-2023 16:05
#9

Picture 5

Posted by Christine Devillers on 28-07-2023 16:05
#10

Picture 6

Posted by Christine Devillers on 28-07-2023 16:11
#11

Picture 7

Posted by Christine Devillers on 25-10-2023 12:24
#12

Wout Opdekamp told me that the colour of the tarsi in aenea is much less dark than in my specimen.
He looked at all the aurata he has in his collection (>20 from different countries) and there is a little variation in the pruinosity and the length of the hairs.
He consulted Frank van de Meutter (another specialist of the Syrphidae) who confirmed the identification as aurata.

Christine