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Hi Gintautas, I think it's a male Tabanus bovinus:
-eyes glossy green, ommatidia of same size, no stripe
-antenna segment 3 with moderate tooth, gradually thinning, black, base red
-abdomen varaiable reddish
see: Veldgids DAZEN (Diptera -Tabanidae) van Noordwest-Europa
Theo Zeegers & André Schulten