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Hello,

I photographed this fly near Passo San Nicolò (TN), Italy, 2400m a.s.l. on August 3rd 2023. I think it is an Herina, and assuming I followed the key in Kameneva (2007) correctly, I think the possible options are H. palustris and H. parva. Is my initial identification correct? And is it possible to further narrow-down the ID to species-level?

Thank you in advance,
Emanuele