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Hello! I caught this fly at night, in Hungary. I keyed it out, and I got Istocheta cinerea/subcinerea. As I read, distinction of these two species is only possible in females. But, how can I identify genders in this genus? I did some pictures about sternites, because this is the only way to distinguish these two species, but I don’t know if this is a male or a female. Could you help me please?