#1
Hello flyforum,
I didn't know that Suillia sp. (if I am correct..) got robberfly habits..

This Doliphus sp. is a prey for this suilla fly, that's for sure!
Possible that the fly did not catch it, but the Doliphus fly was dead already
In this area there where very much Doliphus flies (>1000)
And I do not believe that the Suillia-fly is singing a cradle-song for the Doliphus-fly!
robert heemskerk
#3
Hi Robert.
It isn't Suillia, but Scathophaga, so being predator is quite natural for this fly. Scathophaga, not S. stercoraria.
Nikita