A bee-fly from Bombyliidae family, probably Villa genus.

Close-up of a Sarcophaga fly - part of the Sarcophagidae flesh-fly family.

Hoverfly (Syrphus Ribesii from the Syrphidae family) on a flower.

European hoverfly (Eristalis tenax), also known as the drone fly (or "dronefly"). The last picture was taken with a Hoya +4 close-up filter in front of the lens (no crop). Not exactly the best quality for macro photography but the best portability in the absence of a dedicated macro (1:1) lens.