Abstract
Four species of the genus Oligonychus were collected in China. Two of the species are described as new. O. chamaecyparisae sp. n. was collected from Chamaecyparis pisifera, Juniperus formosana, Thuja orientalis (Biota orientalis), T. orientalis var. sieboldii (B. orientalis var. sieboldii), Prunus salicina in Shanghai, O. baipisongis sp. n. from Pinus bungeana in Shanghai, O. hondoensis (Ehara) from Cryptomeria japonica in Shanghai, and O. coffeae (Nietn.) from Castanea seguinii in Kiangsi and tea in Fukien
