Retortocelis gen. nov. (Insecta, Tarachoptera) is established to accommodate three species from Cretaceous Burmese amber. The species are described as R. longella sp. nov., R. minimella sp. nov. and R. tyloptera sp. nov. The new genus is characterized by the presence of a costal fold on the forewings of the males. The fold is of different size and form, causing specific changes in the wing venation which allows distinguishing the three new species. In addition, a new species of the genus Kinitocelis is described as K. sparsella sp. nov. The species descriptions are based on male individuals. A key is provided to facilitate the identification of the hitherto described genera and species in Tarachoptera. The reasons for the extinction of the Tarachoptera are obscure. Some arguments are discussed that questions the extinction of the group.
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National Museums Scotland
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Cretaceous; Insecta; Amphiesmenoptera; Tarachoptera; Tarachocelidae; Retortocelis gen. nov.; R. longella sp. nov.; R. minimella sp. nov.; R. tyloptera sp. nov.; Kinitocelis sparsella sp. nov.; Morphology; Taxonomy