Xiaomyia aequipedes gen. & sp. n. from Guandong in Oriental China, Shangomyia impectinata gen. & sp. n. from Hainan in Oriental China and Burma, and Zhouomyia plauta gen. & sp. n. from Hainan are described as male imagines. Xiaomyia plus Shangomyia in most features appear to form a separate tribe within the subfamily Chironominae, while a few characters indicate a placement in the Harnischia group of genera. They are preliminary placed at the base of the Chironomini. They are unique in having apical scales with 1-2 spines on all tibiae, but no combs; no dorsomedian eye extension; extended costa; leg ratios of all legs higher than 1.5; and inferior volsella fused to the gonocoxite. Zhouomyia is a typical plesiomorphic Chironomini either related to Apedilum Townes, Paralauterborniella Lenz, Lauterborniella Thienemann & Bause, and Pagastiella Brundin, or to the Endochironomus group of genera.