Male subimago of Vietnamella thani A dorsal view of head B lateral view of head C foreleg D middle leg E hindleg F, G dorsal and ventral view of thorax H forewing I hindwing J ventral view of genitalia K dorsal view of genitalia L lateral view of genitalia M dorsal view of abdomen N lateral view of abdomen O ventral view of abdomen. Scale bars: 1 mm.

 
 
  Part of: Auychinda C, Sartori M, Boonsoong B (2020) Vietnamellidae (Insecta, Ephemeroptera) of Thailand. ZooKeys 902: 17-36. https://doi.org/10.3897/zookeys.902.46844