Posted by ecology on 10-06-2025 11:39
#1
On a Quercus sap run,
Italy.
Are they all Aulacigaster?
Many thanks in advance for your valuable support!
Edited by ecology on 10-06-2025 17:11
 
Posted by Jan Maca on 10-06-2025 15:43
#2
No Aulacigaster, all  are drosophilids,  at least three species.  I  would not speculate which species,  not having seen  more  details, e.  g.  setae  on  palpi  and (in mates)  on  fore tarsi. Just the specimen  with clouded wing apex  could be  a male of  D. tristis,  but even there palpal  aetae should be examined.