Posted by Nikita Vikhrev on 09-03-2018 18:15
#6
A typical hunter on medium-size Muscid is
Oxybelus. I observed it hunting on
Gymnodia flexa and
Musca sorbens (https://diptera.info/forum/viewthread.php?forum_id=5&thread_id=3604). Thus,
H. borussica too.
Oxybelus is confirmed by expert: A. Antropov