Thread subject: :: Chalcosyrphus valgus

Posted by Sundew on 29-05-2022 02:11

It is difficult to say, we need to see the ventral tip of the hind tibia. I add a character comparison of Chalcosyrphus from my Syrphidae paper of last October (I could send you a PDF if you are interested). In my two gallery pictures of C. femoratus, especially in https://diptera.i...to_id=8785, you can see the very light halter knob and the orange basoflagellomeres. Your fly is a bit too dark for C. femoratus, I am afraid...
Regards, Sundew