Two new Jurassic species of Tipuloidea (Insecta: Diptera) from Daohugou Village, China

Two new species of Tipuloidea, Tipunia ningchengensis sp. nov. and Praearchitipula procera sp. nov. are described and illustrated from the Middle Jurassic Jiulongshan Formation at Daohugou Village, Inner Mongolia, China. The new species T. ningchengensis sp. nov. is not only the first Chinese record of genus Tipunia, but also the first record of Tipulidae in the Middle Jurassic. Thereby, it not only enriches the diversity and distribution area of Tipunia, but also extends the first appearance of Tipulidae back to the Middle Jurassic. The new pediciid species P. procera sp. nov. found without hairy eyes, confirms once again that the Mesozoic genus Praearchitipula has no pubescence of the eyes, different than the extant genera of Pediciidae. These two new species further enhance the biodiversity of Jurassic insects in the Daohugou area, and the suitable and diverse ecological environment of this region harbored so rich and diverse insect groups.