Thread subject: Diptera.info :: Chrysotoxum festivum?

Posted by Rupert Huber on 23-07-2011 12:54
#1

Hello to all!
Am I right here with a girl of Chrysotoxum festivum? I'm sorry I can't remember its lenght after 3 years...

3.8.2008, Czech Republic, near Prachatice

Posted by Sundew on 23-07-2011 23:41
#2

C. festivum is highly probable. However, species ID is more safe with shots from different angles. You need to see the antenna segments to compare their lengths, and the bases of the femora, and possibly the katepisternum... See the key http://web.archiv...x_key.html.

Posted by Rupert Huber on 25-07-2011 17:16
#3

Hi Sundew, many thanks for the key! It leads me clearly to point 11. Then on this pic that I found yet it looks as if the femora were entirely yellow, only the trochanter black. Interpretation correct? Then it should be C. festivum indeed...