---

Hello Pierre-Yves,
Today, I was checking this fly again to make a little better pictures of the genitalia and this convinced me you should be right with Sarcophaga depressifrons. So I checked vein R1 again and.. surprise.. because of a fold in the wing several of the bristles were broken, but I could still see the pores of the bristles. So I'm now convinced it should be S. depressifrons.