Dexia rustica?

Dexia rustica?

Observation - Dexia rustica?. Description: Is there a relatively inexpensive field guide to UK Diptera? I have the Ball and Morris guide to hoverflies but for the rest of the order I'm stuck - even for run of the mill species.

Is there a relatively inexpensive field guide to UK Diptera? I have the Ball and Morris guide to hoverflies but for the rest of the order I'm stuck - even for run of the mill species.