This paper is the fourth in a series of studies on the genus Trachys Fabricius from China. It reports the results of a collecting survey of the fauna in Jiangxi Province, China. Altogether, 27 species and subspecies were collected and identified. Detailed distribution data are presented for all species and subspecies recorded from Jiangxi Province, fifteen of which represent new records for the province and two of which are considered new species and are described and illustrated herein: Trachys jinpenshanensis Peng, new species; Trachys parviformis Peng, new species.