---

Compare with

http://www.diptera.info/forum/viewthread.php?forum_id=5&thread_id=38683

the apex of hind femour does not exceed the apex of tergite 4, whereas above the exceed the apex of tergite 5.
the shading in the wing you mentioned might be due to the backgroud: Indo not see shading at the apex of discal cell.
any other pic would be a big help !

The