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The Oligocene Oligopipiza quadriguttata Nidergras, Hadrava, and Nel gen. et sp. nov. is the first fossil Pipizinae found in the lacustrine outcrop of Céreste (South-East of France). It differs from the other Pipizinae in the male genitalia, with a surstylus without tooth and shorter than epandrium, and a long epandrium with a very deep and narrow median theca. It is compared to other extant and fossil...