Learn about flies

Can anyone please identify this long-legged fly?  Has me stumped!  5mm long, caught in native woodland by river in northern Devon on 14 May.

Is this Hydrotaea diabolus please? Beds alder woodland.

Hi I just want to know if I'm in the right ballpark for both before recording, both in a garden today next to a relatively unmanaged field and near Therfield Heath Herts.

I want to say Melanostoma scalere as there does seem to be a greyish frons but its a first for me and the Scaeva just seems too small and early though judging by the wing condition it may have overwintered.

Ps ok Scaeva could just be a dark Eupodes luniger with very yellow face but woud still like confirmation.

This specimen turned up in a moth trap at High Batts Nature Reserve near Ripon last week.

Might this hoverfly be Eupeodes luniger?