New Mesozoic Protopleciidae (Insecta: Diptera: Nematocera) from China

Four extinct new species referable to the genus Mesoplecia Rohdendorf, 1938 and a new genus Epimesoplecia gen. nov. within Protopleciidae have been recovered from the Daohugou Formation in Chifeng, Inner Mongolia, China: Mesoplecia sinica, M. mediana, Epimesoplecia shcherbakovi and E. elenae. The diagnosis of Mesoplecia is supplemented based on information from the new species. All species described earlier as Protopleciidae from China do not belong to this family: Paraoligus exilus Lin, 1976, Mesoplecia xinboensis Hong, 1984, Sinoplecia parvita Lin, 1976, Sunoplecia curvata Hong and Wang, 1990, S. liaoningensis Hong, 1983, ?S. longa Hong, 1983, Hebeiplecia brunnea Hong, 1983, Pleciopsis longa Hong, 1983 and Pseudoplecia ovata Hong and Wang, 1990. Lichnoplecia kovalevi Ren et al., 1995 might be a member of the Protopleciidae.