Thread subject: Diptera.info :: Brachypalpoides lentus or Chalcosyrphus piger? --> male Chalcosyrphus piger

Posted by Gerard Pennards on 17-08-2018 12:01
#5
It's a male Chalcosyrphus piger. The most striking difference with Brachypalpoides in pictures like this is the thickness of the hind femur. In brachypalpoides the hind femur is much more slender as it is in piger. Find brachypalpoides pictures and compare and you'll see what I mean.