Two species of the oribatid mite genus Synichotritia (Euphthiracaroidea: Synichotritiidae), S. spinulosa and S. caroli (the type species), are redescribed, based on adult specimens from California (including paratypes). Despite differences in the setation of notogaster, ventral shield, ovipositor and legs, and different palp segmentation, we continue to consider these species congeneric. The three other described species of Synichotritia from China are transferred to Sabahtritia, requiring slight adjustment to the diagnosis of this closely related genus.