Orcus

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: Cucujiformia
Superfamilia: Cucujoidea

Familia: Coccinellidae
Subfamilia: Coccinellinae
Tribus: Chilocorini
Genus: Orcus
Species (21): O. artensis – O. australasiae – O. bilunulatus – O. biroi – O. chujoi – O. cinctus – O. citri – O. cordiformis – O. cyanocephalus – O. frommi – O. janthinus – O. lafertei – O. nietzschei – O. nigricollis – O. nummularis – O. obscurus – O. popperi – O. punctulatus – O. quadrimaculatus – O. tetrafasciatus – O. viridulus
Name

Orcus Mulsant, 1850
Synonyms

Priasus Mulsant, 1850
Parapriasus Chapin, 1965

Type species

Orcus Mulsant: Orcus janthinus Mulsant, 1850, by subsequent designation by Crotch (1874: 188)
Parapriasus Chapin: Coccinella australasiae Boisduval, 1835, by original designation
Priasus Mulsant: Coccinella bilunulata Boisduval, 1835, by subsequent designation by Chapin (1965: 252)

References

Łączyński, P. 2012: On the genus Orcus Mulsant with descriptions of new species (Coleoptera: Coccinellidae: Chilocorini). Journal of Natural History, 46(39-40): 2401-2414. DOI: 10.1080/00222933.2012.707244 ResearchGate Reference page.
Łączyński, P. & Tomaszewska, W., 2009. A revision of the genus Orcus Mulsant (Coleoptera: Coccinellidae: Chilocorini). Annales Zoologici 59(4): 585–611. ResearchGate Reference page.
Ślipiński, A. & Giorgi, J.A. 2006. Revision of the Australian Coccinellidae (Coleoptera). Part 6. Tribe Chilocorini. Annales Zoologici 56(2): 265-304. DOI: 10.3161/000345406778700865 [nonfunctional] Broken access. Abstract. Reference page.

Orcus is a genus of lady beetles in the family Coccinellidae. There are at least 18 described species in Orcus, found in Australia, New Guinae, New Caledonia, Java, Sumba, and the Kai Islands.[1][2]
Species

These 18 species belong to the genus Orcus:

Orcus artensis Crotch, 1874 (New Caledonia)
Orcus australasiae (Boisduval, 1835) (Australia)
Orcus bilunulatus (Boisduval, 1835) (Australia)
Orcus biroi Weise, 1902 (New Guinea)
Orcus chujoi Bielawski, 1962 (New Caledonia)
Orcus cinctus Weise, 1902 (New Guinea)
Orcus citri Lea, 1902 (Australia)
Orcus cordiformis sp. nov. (New Guinea)
Orcus cyancocephalus Mulsant, 1850 (Australia, New Guinea)
Orcus janthinus Mulsant, 1850 (Java, Sumba, New Guinea)
Orcus lafertei Mulsant, 1853 (Australia)
Orcus nigricollis Weise, 1902 (Key Islands, New Guinea)
Orcus nummularis (Boisduval, 1835) (Australia)
Orcus obscurus Blackburn, 1892 (Australia)
Orcus punctulatus Blackburn, 1892 (Australia, New Guinea)
Orcus quadrimaculatus Gadeau de Kerville, 1884 (Australia)
Orcus tetrafasciatus Laczynski, 2009 (New Guinea)
Orcus viridulus Laczynski, 2009 (New Guinea)

References

"Orcus". GBIF. Retrieved 2019-05-21.

Laczynski, Piotr; Tomaszewska, Wioletta (2010). "Revision of the Genus: Orcus Mulsant (Coleoptera: Coccinellidae: Chilocorini)". Annales Zoologici. 59. doi:10.3161/000345409X484955.