Posted by Ectemnius on 31-01-2015 11:11
#4
Hello pengie,
Jurge is correct. The only Eupeodes or Syrphus with such a large terminalia visible from above is E. corollae.
There are always hairs on the somewhat thicker edge of the calypter, yes. They are positioned in a fringe pointing outwards. Syrphus sp. have hairs on top of the calypter pointing upwards.
Greetings,
Ectemnius