Epimetopidae

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Endopterygota
Superordo: Coleopterida
Ordo: Coleoptera
Subordo: Polyphaga
Infraordo: Staphyliniformia
Superfamilia: Hydrophiloidea

Familia: Epimetopidae
Genera (3): Epimetopus – Eumetopus - Eupotemus

Eumetopus flavidulus

References

Ji, L.; Jäch, M.A. 1998: Description of Eupotemus gen. nov. (Coleoptera: Epimetopidae) and world check list of the species of Epimetopidae. Entomological problems 29(2): 95–97. Reference page. [see p. 96 (World check list of the species of Epimetopidae)]

Links

Hydrophilidae in SYNOPSIS OF THE DESCRIBED COLEOPTERA OF THE WORLD

Epimetopidae is a family of semi-aquatic beetles found on the edges of streams and shallow freshwater ponds. These beetles are shorter than half a centimeter long and have a pronotum with a central projection forming a shelf above the head. On the underside of the abdomen only four sternites are visible. There are less than a hundred species in three genera, Epimetopus which is restricted to the New World,[1] mostly Neotropical, Eupotemus with two Afrotropical species and Eumetopus[2] with some Oriental species. Females carry their eggcases on the underside of the abdomen.[3]
References

Perkins, Philip D. (2012). "A revision of Epimetopus Lacordaire, the New World hooded shore beetles (Coleoptera: Epimetopidae)". Zootaxa. 3531: 1. doi:10.11646/zootaxa.3531.1.1.
Ji, L.; Jäch, M.A. (1998). "Epimetopidae: Synopsis of the genus Eumetopus Balfour-Browne (Coleoptera)". In Jäch, M.A.; Ji, L. (eds.). Water Beetles of China. Volume 2 (PDF). Vienna: Zoologisch-Botanische Gesellschaft in Österreich, Wiener Coleopterologenverein. pp. 195–205.
Fikáček, Martin; Matsumoto, Keita; Perkins, Philip; Prokin, Alexander; Sazhnev, Alexey; Litovkin, Stanislav; Jäch, Manfred A. (2021). "The family Epimetopidae (Coleoptera: Hydrophiloidea): review of current knowledge, genus-level phylogeny, and taxonomic revision of Eupotemus". Acta Entomologica Musei Nationalis Pragae: 1–34. doi:10.37520/aemnp.2021.001. ISSN 1804-6487.