A new ground beetle (Carabidae, Protorabinae) from the Lower Cretaceous of Inner Mongolia, China.

Cretorabus rasnitsyni sp. n., belonging to the extinct subfamily Protorabinae of Carabidae, was described based on a well-preserved specimen from the Lower Cretaceous Yixian Formation of Yangshuwanzi, Inner Mongolia. The diagnostic characters for Cretorabus are revised, and the key to species of the genus was presented. The fossil record of Protorabinae was summarized. Sinocarabus Hong, 1982 and Obesofemoria Hong, 1982 cannot be attributed to Protorabinae. [ABSTRACT FROM AUTHOR]