Diamesus

Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Ordo: Coleoptera
Subordo: Polyphaga
Infraordo: Staphyliniformia
Superfamilia: Staphylinoidea

Familia: Silphidae
Subfamilia: Silphinae
Genus: Diamesus
Species (2): D. bimaculatus – D. osculans
Name

Diamesus Hope, 1840

Diamesus osculans from southern India

References

Hope 1840 Coleopt. Manual, 3, 149.
Peck, S.B. 2001: Review of the carrion beetles of Australia and New Guinea (Coleoptera: Silphidae). Australian journal of entomology, 40: 93–101. DOI: 10.1046/j.1440-6055.2001.00216.x

Links

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Nomenclator Zoologicus

Diamesus is a genus of rather large carrion beetle with two species distributed in tropical Asia and Australia. Like other Silphinae, it has an antenna with 11 segments. About 3 or 4 abdominal segments are visible beyond the tip of the elytra. The elytra themselves have longitudinal keels. The type species is Diamesus osculans.[1] The larvae are broad and flat and somewhat cockroach-like (blattiform).[2]
References

Peck, Stewart B (2001). "Review of the carrion beetles of Australia and New Guinea (Coleoptera: Silphidae)" (PDF). Australian Journal of Entomology. 40 (2): 93–101. doi:10.1046/j.1440-6055.2001.00216.x.
Hatch, Melville H. (1927). "Studies on the Silphinae". Journal of the New York Entomological Society. 35 (4): 331–371.