Peniticus

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
Cladus: Phytophaga
Superfamilia: Chrysomeloidea

Familia: Chrysomelidae
Subfamilia: Eumolpinae
Tribus: Eumolpini
Genus: Peniticus
Species (5): P. antiquus – P. microreticulatus – P. plicatus – P. suffusus – P. wallacei
Name

Peniticus Sharp, 1876: 101

Type species: Peniticus suffusus Sharp, 1876, by subsequent designation by Broun (1921: 664) ['More elongate-oval than the type of the genus (1101), ...', where 1101 is the "Broun species number" for Peniticus suffusus]
References
Primary references

Broun, T. 1921. Descriptions of new genera and species of Coleoptera. Part VII. New Zealand Institute Bulletin (1)(7): 591–665. DOI: 10.5962/bhl.title.12470 BHL Reference page.
Sharp, D. 1876. Descriptions of some new genera and species of New Zealand Coleoptera (concluded from page 77.) Entomologist's monthly magazine 13: 97–102. BHL Reference page. [first availability, see p. 101]

Additional references

Gómez-Zurita, J. 2020. Taxonomic revision of species in the New Zealand endemic genera Peniticus Sharp, 1876 and Pilacolaspis Sharp, 1886 (Coleoptera: Chrysomelidae). Austral Entomology 59(4): 701–730. DOI: 10.1111/aen.12503 Paywall. Reference page.