SEM of Prosopistoma sp.: A Leg I B Dorsal margin of tibia of leg I C Ventral margin of tibia of leg I, showing 4 serrated spines (indicated by white arrows). Note spines 1 and 4 are broken D Claw of leg I E Leg II F Fore-tibia of leg II G Leg III H Apex of fore-tibia of leg III. Scale bar in μm.

  Part of: Yam RSW (2015) First record of the genus Prosopistoma Latreille, 1833 (Ephemeroptera, Prosopistomatidae) in Taiwan. ZooKeys 473: 147-156.