Here will be the general information on riffle beetles.

Major source for taxonomy of the family is:

Jäch, MA, Kodada, J, Brojer, M, Shepard, WD & Čiampor Jr, F (2016) World Catalogue of Insects, Volume 14, Coleoptera: Elmidae, Protelmidae. Brill, Leiden, 318p.

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith