A new Scolebythidae Eobythus patriciae gen. nov., sp. nov. is described from the Lowermost Eocene amber of the Oise Valley (France). A first attempt at a phylogenetic analysis suggests that the fossil genera Eobythus gen. nov. and Libanobythus Prentice et al. (1996) would constitute an original clade not directly related to the three modern scolebythid genera.