Abstract
Baiyuerius is a newly erected genus of Coelotinae spiders comprising five species distributed in southern China and northern Vietnam. Two additional new species, B.shenzhensp. nov. (male and female) and B.yuelusp. nov. (male and female), are described here. Three new combinations are proposed, namely Baiyueriusacroprocessus (Zhang, Zhu & Wang, 2017) comb. nov., Baiyueriusglobasus (Wang, Peng & Kim, 1996) comb. nov. and Baiyueriusrugosus (Wang, Peng & Kim, 1996) comb. nov. Descriptions, photographs, and a distribution map of the known and newly proposed species are provided.