Riek, E. F.2015-01-072015-01-071976None0078-8554http://hdl.handle.net/10539/16205Main articleAn unusual mayfly from the Upper Triassic near Dordrecht in the Cape Province of South Africa is described as Xenophlebia optata gen. et sp. nov., and is ascribed to a new family, the Xenophlebiidae, as its sole representative.enInsecta; Mayfly; South Africa; TriassicArticle