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I don't think that this is a Calliopum species. The head doesn't match in my opinion. Also, if you follow the keys to Calliopum from Remm Elberg 1979 (available in the downloads section at diptera.info), then you end up at tunisicum which is from Tunisia. My best guess is a Minettia species? I have no experience with Minettia. Maybe someone will see your post when they have time to review it...

I hope that you have a Pleasant Day...