The Idaeaproximaria complex is reviewed and four new species are described from China: Idaearectangularis Cheng & Han, sp. nov. from Guangxi and Fujian provinces, Idaearectispina Cheng & Han, sp. nov. from Hunan province, Idaeasetosa Xue & Han, sp. nov. from Hainan province, and Idaealinearis Xue & Han, sp. nov. from Hubei and Shaanxi provinces. Illustrations of adults and genitalia of the new species and known species are presented, and the variations in the form of the aedeagus of Idaeaproximaria are discussed.
Keywords: China; endemic; tarsus; variation.
Rui Cheng, Da-Yong Xue, Nan Jiang, Hong-Xiang Han.