SEM of egg structure of Vietnamella thani A overview B detail of Knob Terminated Coiled Thread (KCT) and chorionic surface C micropyle. Scale bars: 50 µm.

 
 
  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