Thread subject: Diptera.info :: Rhingia ID? --> Rhingia rostrata

Posted by Matzke-Hajek on 29-10-2021 17:14
#1
Who can confirm my determination? Rhingia rostrata?
Thanks in advance
Regards - Günter
Edited by Matzke-Hajek on 03-04-2022 11:06

Posted by Matzke-Hajek on 29-10-2021 17:19
#2
I forgot to note date and locality:
Today (29. Oct. 2021) in my garden in Alfter-Witterschlick near Bonn, Germany.

Posted by eklans on 29-10-2021 17:25
#3
Hi Günter, that was my question. It looks exactly like rostrata (mainly red legs, thorax bluegrey...) but this seems to be a spring species. Only campestris should be in the air in October. Do you have a shrper view of the arista?
Edited by eklans on 29-10-2021 17:25

Posted by Matzke-Hajek on 29-10-2021 17:43
#4
here another foto of the head...

Posted by eklans on 29-10-2021 17:51
#5
There's a second generation - peak September - until October. So I'm quite sure it is rostrata. (The new foto hasn't arrived yet)

Posted by Matzke-Hajek on 30-10-2021 08:09
#6
something went wrong, sorry, second try

Posted by Matzke-Hajek on 30-10-2021 08:12
#7
grrr

Posted by eklans on 30-10-2021 08:51
#8
Yes, looks like the arista is bare (rostrata)!

Posted by Matzke-Hajek on 30-10-2021 12:07
#9
Leg colour, lack of black margins of abdomen, and blueish grey thorax led me to rostrata too. Some keys depend on ratio of snout length to eye diameter, but this depends on angle of view and seems not reliable at all. But I didn't know about the phenology - so thanks for your expertise!
Günter

Posted by Karsten Thomsen on 20-01-2022 12:59
#10
Perhaps you should edit the title bar in accordance with ID.