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

摘要

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 forCretorabus 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.