Based on molecular analysis (12S rRNA, 16S rRNA, 18S rRNA and histone H3) and morphological characters, it was found that Ero juhuaensis Xu, Wang & Wang, 1987 is misplaced and belongs to Mimetus Hentz, 1832. A new combination is suggested, Mimetus juhuaensis (Xu et al., 1987) new combination. The male of M. juhuaensis is described for the first time. Detailed descriptions and illustrations of both sexes, as well as a distribution map of all known species of Mimetidae Simon, 1881 from China are provided.