Branchiobaetis

Branchiobaetis is a genus of small mayflies in the family Baetidae. First formally described in late 2022, these aquatic insects are broadly distributed across Southeast Asia—with recent records extending into East Asia—and are primarily distinguished by highly specialized respiratory adaptations in their larval stages. Species within this genus serve as important biological indicators for local water quality and riparian ecosystem health as they are dependent on highly oxygenated freshwater streams during their nymphal development.