| abstract | Tetranychus huhotensis n.sp. and T. zeae n.sp. are described and illustrated from corn leaves in Inner Mongolia. Tetranychus huhhotensis n.sp. assigned to Flechtmann and Knihinickiʼs Group 4 of Tetranychus, can be separated from its allied species by having the aedeagal knob with dorsal surface distinctly emarginate centrally. Tetranychus zeae n.sp. is distinctive in group 9 of this genus in that the aedeagal knob is minute, with anterior projection practically absent and posterior projection conspicuous, acute. Summer females of the two new species are pale greenish-yellow, while their diapausing females are pale-orange. |