Ajubus

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: Cucujiformia
Cladus: Phytophaga
Superfamilia: Chrysomeloidea

Familia: Chrysomelidae
Subfamilia: Eumolpinae
Tribus: Eumolpini
Genus: Ajubus
Species: A. viridis
Name

Ajubus Aslam, 1967: 128 [replacement name for Thaumastomerus Clark, 1865]

Type species: Thaumastomerus viridis Clark, 1865, automatic.
Synonyms

Thaumastomerus Clark, 1865: 418 [preoccupied by Thaumastomerus Wollaston, 1861 (Curculionidae)]
Type species: Thaumastomerus viridis Clark, 1865, by monotypy.

References
Primary references

Aslam, N.A. 1967. [1968] Nomenclatorial notes on Chrysomeloidea (Coleoptera). Journal of Natural History 2(1): 127–129. DOI: 10.1080/00222936800770691 Paywall. Reference page.
Clark, H. 1865. Descriptions of new Phytophaga from Western Australia. Transactions of the Entomological Society of London, Series 3 2: 401–421. DOI: 10.1111/j.1365-2311.1864.tb00113.x Paywall. BHL.

Ajubus is a genus of leaf beetles in the subfamily Eumolpinae. It contains only one species, Ajubus viridis, described from Champion Bay in Western Australia. The genus was originally named Thaumastomerus by Hamlet Clark in 1865; however, this name was preoccupied by Thaumastomerus Wollaston, 1861 (a beetle genus in Curculionidae), so it was renamed to Ajubus by N. A. Aslam in 1968.
References

Clark, H. (1865). "Descriptions of new Phytophaga from Western Australia". Transactions of the Entomological Society of London. 3. 2: 401–421.
Aslam, N. A. (1968). "Nomenclatorial notes on Chrysomeloidea (Coleoptera)". Journal of Natural History. 2 (1): 127–129. doi:10.1080/00222936800770691.