The gills on the first abdominal segment are typically slender and finger-like, while those on abdominal segments 2-7 are forked, displaying varying shapes such as slender filaments or broad structures ending in slender filaments. Caudal filaments bear setae at the apex of each segment. A key identifying feature of leptophlebiid mayflies is the existence of forked gills. However, these gills are frequently broken, posing challenges in the identification process.