(16–23) Male genitalia of Idaea proximaria complex 16–19 I. proximaria 16–17 Shizipo, Sichuan 18–19 Jinsixia, Shaanxi 20 I. rectangularis sp. nov., holotype 21 I. rectispina sp. nov., holotype 22 I. setosa sp. nov., holotype 23 I. craspedota. (24–27) Aedeagus of I. proximaria complex 24–26 I. proximaria 24 Dashuigou, Sichuan 25 Shizipo, Sichuan 26 Jinsixia, Shaanxi 27 I. rectangularis sp. nov., holotype. Scale bars: 1 mm.

 
 
  Part of: Cheng R, Xue D-Y, Jiang N, Han H-X (2023) Review of the Idaea proximaria complex (Lepidoptera, Geometridae, Sterrhinae) with descriptions of four new species. ZooKeys 1169: 293-305. https://doi.org/10.3897/zookeys.1169.106815