Taxonomic notes on the Chinese species of the genus Broscosoma Rosenhauer, 1846 (Coleoptera, Carabidae, Broscinae), with description of seven new species

The ground beetle genus Broscosoma Rosenhauer, 1846 comprises 62 described species, distributed in Western Europe, East Asia, and its adjacent regions. China exhibits particularly high species diversity within this genus, with 45 recorded species and subspecies. In this study, we describe seven new Broscosoma species from China: B. chaoshan sp. nov . from Guangdong Province, B. epanggong sp. nov . from Sichuan Province, B. jiangyuxini sp. nov . from Guizhou Province, B. luojingxiangi sp. nov . from Zhejiang Province, B. surongxiangi sp. nov . from Fujian Province, B. xumaozhoui sp. nov . from Hubei Province and Chongqing City, and B. zhouhanpingi sp. nov . from Chongqing City. Habitus and diagnostic features of the new species are illustrated, along with a checklist of all known Chinese Broscosoma species and a distribution map of Chinese Broscosoma species outside the Qinghai-Xizang Plateau and Hengduan Mountains region. The comparative diagnoses discuss characters of the new and known species. The results indicate that the existing species diversity requires more detailed research focusing on larger areas of South China in the future.