Key to males of Yunnanosticta spp. 1. Cerci without any prominent spur or tooth at inferior border near apex; paraproct conical without notched apical portion, only apices upcurved (Fig. 14c–d)...................................................................... Y. siangi Cerci with a spur or tooth at the inferior border near apex; paraproct conical with notched and upwards curved apical portion.................................................................................................... 2 2. Blue prothorax; cerci globular in dorsal view, tooth-like projection near inferior border of cerci apex; paraproct with a shallow notch (Figs. 14a–b)....................................................................... Y. cyaneocollaris Dark brown prothorax with two blue spots and blue posterior lobe; cerci roughly conical, a small spur near the inferior border of cerci apex; paraproct deeply notched (Figs. 14e–f).................................................. Y. wilsoni

Published as part of Joshi, Shantanu, Sarkar, Vivek, Sawant, Dattaprasad, Pawar, Ujwala & Kunte, Krushnamegh, 2024, Description of Protosticta khasia sp. nov. and Yunnanosticta siangi sp. nov., with new records of P. samtsensis Gurung & Phan, 2023 from Northeast India (Odonata: Zygoptera: Platystictidae), pp. 348-370 in Zootaxa 5448 (3) on page 369, DOI: 10.11646/zootaxa.5448.3.2, http://zenodo.org/record/11231707