Nigrobaetis richardi sp. nov., nymph morphology: a labrum b right mandible c right prostheca d left mandible e left prostheca f hypopharynx and superlinguae g maxilla h labium i apex of paraglossa. Scale bar: 0.1 mm.

 
 
  Part of: Kaltenbach T, Mary N, Gattolliat J-L (2021) The Baetidae (Ephemeroptera) of the Comoros and Mayotte. African Invertebrates 62(2): 427-463. https://doi.org/10.3897/afrinvertebr.62.70632