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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: Staphylinoidea

Familia: Staphylinidae
Subfamilia: Omaliinae
Tribus (7): AnthophaginiAphaenostemminiCorneolabiiniCoryphiiniEusphaleriniHadrognathiniOmaliini

Genera overview: Acidota – Acrolocha – Acrulia – Acruliopsis – Allodrepa – Altaiodromicus – Altaioniphetodes – Amphichroum – †Anicula – Antarctotachinus – Anthobioides – Anthobiomimus – Anthobium – Anthophagus – Aphaenostemmus – Archaeoboreaphilus – †Archodromus – Arpedium – Artochia – Austrolophrum – Boreaphilus – Brachygnathellus – Brathinus – Brouniellum – Caloboreaphilus – Camioleum – Carcinocephalus – Corneolabium – Coryphiocnemus – Coryphiodes – Coryphiomorphus – Coryphiopsis – Coryphium – Crymus – Cylletron – †Daiodromus – DeinopterolomaDeliphrosoma – Deliphrum – Dialycera – Dropephylla – †Duocalcar – Emodensia – †Eophyllodrepa – Ephelinus – Eudectus – EusphalerumGeodromicus – Giulianium – †Globoides – Gnathoryphium – Hadrognathus – Haida – Hapalaraea – Holoboreaphilus – Hygrodromicus – Hygrogeus – Hypopycna – Hypsonothrus – Ischnoderus – Leaskia – Lesteva – Liophilydrodes – Macralymma – Mannerheimia – †Megalymma – †Mesodeliphrum – Metacorneolabium – Metaxylostiba – Micralymma – Microedus – †Morsum – Murathus – Nesomalium – Niphetodes – Niphetodops – Nipponophloeostiba – Noumalia – Occiephelinus – Olophrum – Omaliomimus – Omaliopsis – Omalium – Omalonomus – Omalorphanus – Ophthalmoniphetodes – Orobanus – Orochares – Palpomalium – Paracorneolabium – Paraphloeostiba – Paratrichodromeus – Pareudectus – Pelecomalium – Philhydrodema – Philorinum – Philydrodes – Phlaeopterus – Phloeonomus – Phloeostiba – Phyllodrepa – Phyllodrepoidea – Planeboreaphilus – Platycoryphium – Porrhodites – †Porrhodromus – †Prodaia – Prosoglypta – Prosopaspis – †Protostaphylinus – Pseudodialycera – Pseudohaida – †Pseudolesteua – Pycnoglypta – Selonomus – †Sinanthobium – Stenomalium – Subhaida – Tanyrhinus – Tetradelus – Trichodromeus – Trigonodemus – Uenohadesina – Ulommia – Unamis – Xanthonomus – Xenanthobium – Xenicopoda – Xylodromus – Xylostiba – Zeolymma

Invalid genera names Paramannerheimia – Vellica
Name

Omaliinae MacLeay, 1825: 49

Type genus: Omalium Gravenhorst, 1802.

References
Primary references

Macleay, W.S. 1825. Annulosa Javanica, or an attempt to illustrate the natural affinities and analogies of the insects collected in Java by Thomas Horsfield, M.D.F.L. & G.S. and deposited by him in the museum of the honourable East-India Company. No. 1 Kingsbury, Parbury & Allen. London. xii + 50. [original description: p. 49]

Additional references

Herman, L.H. 2001: Catalog of the Staphylinidae (Insecta, Coleoptera): 1758 to the end of the second millennium. I. Introduction, history, biographical sketches, and omaliine group. Bulletin of the American Museum of Natural History, ( 265 ): 1–650.
I.Löbl & A.Smetana (eds). 2004 Catalogue of Palearctic Coleoptera. Vol. 2: Hydrophiloidea-Staphylinoidea.
Apollo Books, Stenstrup, Denmark ISBN 87-88757-74-9, p. 237
Kim, T-K., Song, J-H., Thayer, M.K. & Ahn, K-J. 2019. Molecular phylogeny of Omaliinae (Coleoptera: Staphylinidae) and its implications for evolution of atypically long elytra in rove beetles. Systematic entomology 45(1): 20–32; online supplements. DOI: 10.1111/syen.12372 Paywall Reference page.

The Omaliinae are a subfamily of the Staphylinidae, rove beetles.[1]

Anatomy

Typical adults are 1.5 to 6 mm long, somewhat broader in shape than are most Staphylinidae, with somewhat longer elytra (without serial punctures), the head with a broad neck, the antennae which are only slightly broader at the apex, and tarsi of five articles. In almost all genera is a pair of ocelli near the base of the head, and in a few, the elytra cover the entire abdomen. The maxillary mala of larvae is strap-shaped, but not as long as in the Proteininae, and the mandible lacks a prostheca.

Ecology

Adults and larvae occur in leaf litter, decaying fruits, moss, and under bark of dead trees. Adults of several species and larvae of a few occur in flowers. Adults and larvae of many genera and species are believed to be predatory (they feed on freshly killed small insects), though a few seem to be phytophagous (they damage flowers) or saprophagous (they feed on decaying fruits).
Systematics and evolution

The Omaliinae subfamily is large (comprising over 100 genera), and is divided into these seven tribes:

Anthophagini
Omaliini
Eusphalerini
Hadrognathini
Corneolabiini
Coryphiini
Aphaenostemmini

In North America, 55 genera and more than 200 species are found.
References

Newton, A. F., Jr., M. K. Thayer, J. S. Ashe, and D. S. Chandler. 2001. 22. Staphylinidae Latreille, 1802. p. 272–418. In: R. H. Arnett, Jr., and M. C. Thomas (eds.). American beetles, Volume 1. CRC Press; Boca Raton, Florida. ix + 443 p.

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