A new species,Wandesia(s.str.)boyani Li&Guo,sp.nov.,is described and illustrated in detail,which is collected from Qinghai-Tibet plateau,P.R.China,and represents a newly recorded subfamily Wandesiinae(Acari:Hydrachnidiae:Hydryphantidae)to Chinese fauna.The new species is distinguished from its congeners by having stalked acetabula ranged triangularly,developed pregenital sclerite lily-like,E4 at the middle of Ac-1 and Ac-2.