Prosopistoma sp.: A Leg I B Apex of ventral margin of tibia showing 4 serrated spines C Leg II D Apex of ventral margin of tibia of leg II E Leg III F Apex of ventral margin of tibia of leg III G Gill I H Upper lamellae portion of gill I. 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. https://doi.org/10.3897/zookeys.473.8787