Thread subject: Diptera.info :: Strange pattern_ Graphocephala fennahi

Posted by Lothar Schuh on 12-10-2020 13:15
#1
Hello,
I tend to ID this as Graphocephala fennahi. however Colour pattern is strange and does (?) not fit in anything??!

Do pattern depend on age, temperature, genus?

Size: 2-3 mm, Found: Schwetzigen, Germany, 11 oct 20

Any expert who may help?

Regards

Lothar
Edited by Lothar Schuh on 12-10-2020 13:18

Posted by Lothar Schuh on 12-10-2020 13:17
#2
1

Posted by Lothar Schuh on 12-10-2020 13:18
#3
2

Posted by Lothar Schuh on 12-10-2020 13:19
#4
3

Posted by eklans on 12-10-2020 13:38
#5
Hi Lothar, I agree - a strange pattern for Graphocephala fennahi but common for Zygina tiliae.

Eric

Posted by Lothar Schuh on 12-10-2020 13:46
#6
Thank you for quick response and clarification!

Lothar

Posted by Juergen Peters on 12-10-2020 17:52
#7
Hi Eric,

eklans wrote:
a strange pattern for Graphocephala fennahi but common for Zygina tiliae.


as there are at least 16 species of Zygina in Germany, several of them with a similar pattern, how do you arrive at Z. tiliae without knowledge of the host plant? At the moment Z. flammigera is very common here (on Carpinus etc.).

@Lothar: Graphocephala fennahi measures 7-9 mm. The one below I did not find on Rhododendron in our garden (as usual), but on Rubus fruticosus agg next to a forest path three days ago.