Posted by Xaver Frank on 19-07-2006 17:53
#1
Hello!
In Switzerland there sat this fly on a thistle today. Can you help me, please, to identify this Syrphidae? The patterns on its abdomen let me know, that it is genus Scaeva and I heard, that they can identify these Syrphidae on photos by only a good key.
Thank you for your help, Xaver
Posted by Xaver Frank on 20-07-2006 17:36
#4
Thank you, Gisela!
Can you state the differences between
Eupeodes corollae and
E. lapponicus for me? Wikipedia User Wofl rather identified this fly as
E. corollae...
Greetings ;)
Posted by Kahis on 20-07-2006 20:33
#5
Which shows that while Wikipedia in often useful, any fact in it can be wrong. Real
corollae female have yellow spots that reach the edge of tergites (the plates forming the upper surfave of abdomen). The 5th tergite should have yellow edges and the spots are also a bit too narrow for
corollae. Many of the photos found by a Google image search appear to be misidentified, but the first two photos on
this page has real
corollae.
The best character for lapponicus is in the wing venation and it can not be seen in a flying insect.
I'm not a specialist in syrphidae and will not hasard a guess on the real identity of your fly. Could be a
Eupeodes nielseni, or a dark
E. lundbecki, or a
E. lapponicus - or a
Dasysyrphus?