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Hi John,

here we have (by Fauna Italia):

Geron albidulus (Francois, 1969) (S)
Geron gibbosus (Oliver, 1789) (S, Si)
Geron halteralis (Wiedemann in Meigen, 1820) (N, S)
Geron intonsus (Bezzi, 1925) (N, S, Si)

S = South
Si = Sicily
N = North

If the checklist is correct it could be G. intonsus or G. halteralis.

Thanks for your help!

Regards,
Marcello