#4
Chloropidae, Chloropinae: Cetema myopinum (Loew, 1866). Easily to identify: arista black, the spread out white hairs on the mid-tibia in connection with the large epandrium curved ventrally (similar in Myopa, Conopidae). Larval development in grasses belonging into several genera. Compare comment on https://diptera.info/forum/viewthread.php?thread_id=108311