New archidermapteran earwigs (Dermaptera) from the Middle Jurassic of Inner Mongolia, China.

Two new species of Archidermaptera are described and figured from the Middle Jurassic Jiulonghsan Formation of Daohugou, Inner Mongolia, China. is described in the family Protodiplatyidae and is established in the family Dermapteridae. Both new species share the typical characters of the extinct suborder Archidermaptera (e.g., pentamerous metatarsi, filiform and multimerous cerci, externalized ovipositor). is compared with other genera of the Protodiplatyidae, while allows us to emend the diagnosis of the genus . We briefly discuss the diversity of Archidermaptera and challenges to understanding relationships among this mid-Mesozoic diversity.