Hoverflies are the best known wasp and bee mimics, which do an impressive impersonation of their more dangerous distant cousins.
Many hoverflies have evolved these black and yellow ‘don’t mess with me’ markings, but are just bluffing – they are completely harmless.

Eristalis tenax has a white hairy face with a black center stripe.but is mainly characterized by the two vertical stripes on the eyes (actually hair bands).
In flight the hind legs hang down remarkably.

1st photo: In my yard, Hilversum, The Netherlands, 9 July 2017
2nd & 3rd photo: Loosdrecht, The Netherlands, 10 July 2011
4th & 5th photo: Air Force Base, Soesterberg, The Netherlands, 26 July 2021