Arcobaetis sumatrensis sp. nov., larva a labrum (left: ventral view; right: dorsal view) b right mandible c right prostheca d left mandible e left prostheca f hypopharynx and superlinguae g maxilla h labium (left: ventral view; right: dorsal view) i apex of paraglossa (ventral view) j apex of paraglossa (dorsal view).

 
 
  Part of: Kaltenbach T, Kluge NJ, Gattolliat J-L (2023) A new, widespread genus of Baetidae from South Asia (Insecta, Ephemeroptera). ZooKeys 1168: 231-266. https://doi.org/10.3897/zookeys.1168.104844