Megabranchiella longusa sp. nov., larval morphology A foreleg B tarsal claw C tergite V D abdominal gills I–VII E paraproct and notched scales on surface.

 
 
  Part of: Phlai-ngam S, Boonsoong B, Gattolliat J-L, Tungpairojwong N (2022) Megabranchiella gen. nov., a new mayfly genus (Ephemeroptera, Baetidae) from Thailand with description of two new species. ZooKeys 1125: 1-31. https://doi.org/10.3897/zookeys.1125.90802