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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: Hydrophilidae
Subfamilia: Sphaeridiinae
Tribus: Megasternini
Genera (37): AgnaArmostusCenebriophilus – Cercillum – CercyodesCercyonCeronocytonCetiocyonCryptopleurum – Cycreon – Cycrillum – Cyrtonion – Deltostethus – EmmidoliumCryptopleurum – Evanesternum – Kanala – Megasternum – Moraphilus – Morastus – Motonerus – Nipponocercyon – Nitidulodes – Notocercyon – OosternumPachysternumPacrillumParoosternumPelocyon – Pelosoma – Peltocercyon – PemelusPseudoosternumPyretus – Quadristernum – Sacosternum

Unaccepted genera (1): Anchorosternum

Check (15): Acaryon – Australocyon – Bolbonotum – Chledocyon – Colerus – Delimetrium – Gillisius – Kahanga – Oreocyon – Parastromus – Pilocnema – Platycyon – Pseucyon – Pseudocercyon
Name

Megasternini Hansen, 1991

Synonyms

Cercyonini

References

Hansen, M. 1991: The hydrophiloid beetles: phylogeny, classification and a revision of the genera (Coleoptera, Hydrophiloidea). Biologiske skrifter, 40. ISBN 87-7304-226-9. Google books Reference page.
Arriaga-Varela, E., Seidel, M. & Fikáček, M. 2018. A new genus of coprophagous water scavenger beetle from Africa (Coleoptera, Hydrophilidae, Sphaeridiinae, Megasternini) with a discussion on the Cercyon subgenus Acycreon. African Invertebrates 59(1): 1–23. DOI: 10.3897/AfrInvertebr.59.14621. Reference page.
Arriaga-Varela, E., Wong, S.Y., Kirejtshuk, A. & Fikácek, M. 2018. Review of the flower-inhabiting water scavenger beetle genus Cycreon (Coleoptera, Hydrophilidae), with descriptions of new species and comments on its biology. Deutsche Entomologische Zeitschrift 65(1): 99–115. DOI: 10.3897/dez.65.26261. Reference page.
Hansen, M. 1989: New genera of Sphaeridiinae (Coleoptera: Hydrophilidae). Entomologica scandinavica, 20: 251–262. DOI: 10.1163/187631289X00320
I.Löbl & A.Smetana (eds). 2004 Catalogue of Palearctic Coleoptera. Vol. 2: Hydrophiloidea-Staphylinoidea.
Apollo Books, Stenstrup, Denmark ISBN 87-88757-74-9, p. 61
Shatrovskiy, A.G. 2017. A new species of Cycreon d’Orchymont, 1919 from Singapore (Coleoptera: Hydrophilidae: Megasternini). Zootaxa 4317(3): 588–592. DOI: 10.11646/zootaxa.4317.3.11. Reference page.

Megasternini is a tribe of water scavenger beetles in the family Hydrophilidae. There are at least 70 described species in Megasternini.[1][2]
Genera

Agna Smetana, 1978
Cercyon Leach, 1817
Cryptopleurum Mulsant, 1844
Cycrillum Knisch, 1921
Deltostethus Sharp, 1882
Megasternum Mulsant, 1844
Oosternum Sharp, 1882
Paraoosternum Scott, 1913
Pelosoma Mulsant, 1844
Tectosternum Balfour-Browne, 1958

References

"Megasternini Tribe Information". BugGuide.net. Retrieved 27 January 2018.

"Megasternini Report". Integrated Taxonomic Information System. Retrieved 27 January 2018.

Hansen, Michael (1999). World Catalogue of Insects, volume 2: Hydrophiloidea (s. str.) (Coleoptera), 416.

Further reading

Arnett, R. H. Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). (21 June 2002). American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea. CRC Press LLC, Boca Raton, Florida ISBN 978-0-8493-0954-0.
Ross H. Arnett (30 July 2000). American Insects: A Handbook of the Insects of America North of Mexico. CRC Press. ISBN 978-0-8493-0212-1.
Richard E. White. (1983). Peterson Field Guides: Beetles. Houghton Mifflin Company.

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