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Thank you Paul!

I saw the Italian Checklist:

Crumomyia fimetaria (Meigen, 1830) (N, S)

Crumomyia glabrifrons (Meigen, 1830) (N, S, Si)

Crumomyia glacialis (Meigen, 1830) (N)

Crumomyia nigra (Meigen, 1830) (N, S)

Crumomyia nitida (Meigen, 1830) (N, S)

Crumomyia notabilis (Collin, 1902) (N)

Crumomyia parentela (Séguy, 1963) (N)

Crumomyia pedestris (Meigen, 1830) (N?)

C. glabrifrons and C. notabilis seem to be the best fit, but I stop here.

Thank you again!

Ciao,
Marcello