Family Elmidae Curtis 1830 (riffle beetle)
Insecta - Coleoptera - Elmidae
Parent taxon: Dryopoidea according to C. Y. Cai et al. 2022
See also Bouchard et al. 2011, Crowson 1981, Lawrence and Newton 1995 and Webster 2016
Sister taxa: Actinocerites, Brachypodites, Callirhipidae, Chelonariidae, Cneoglossidae, Dryopidae, Eulichadidae, Expansifemoria, Heteroceridae, Jiuquanocoleus, Limnichidae, Lutrochidae, Mastigocoleidae, Psephenidae, Ptilodactylidae
Subtaxa: Cleptelmis Cretohypsilara Elminae Heterelmis Larainae
Type: Elmis
Ecology:
Distribution:
• Quaternary of Japan (1 collection), the United Kingdom (24), United States (2: Washington)
• Oligocene of Germany (1)
• Eocene of India (1), the Russian Federation (2)
• Cretaceous of Myanmar (1)
Total: 32 collections including 102 occurrences