Nymphal characters of Siphlonurus dongxi Li & Tong, sp. nov. A antenna B labrum (ventral view on left, dorsal view on right) C left mandible D right mandible E left maxilla F right maxilla G hypopharynx H labium.

 
 
  Part of: Yang K, Li X-F, Tong X-L, Cai Q-H (2023) A new species of Siphlonurus Eaton, 1868 (Ephemeroptera, Siphlonuridae) from Yunnan, China. ZooKeys 1166: 121-139. https://doi.org/10.3897/zookeys.1166.102847