Eucolaspis

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
Genera: Eucolaspis
Species: E. antennata – E. brunnea – E. colorata – E. hudsoni – E. jucunda – E. kotatou – E. pallidipennis – E. picticornis – ?E. castanea – ?E. saltator
Name

Eucolaspis Sharp, 1886: 445

Type species: Colaspis puncticollis Broun, 1880 [=Colaspis pallidipennis White, 1846], by subsequent designation by Shaw (1957: 641).
References
Primary references

Sharp, D. 1886. On New Zealand Coleoptera, with descriptions of new genera and species. Scientific transactions of the Royal Dublin Society (2)3: 351–454, plates XII–XIII. BHL. Internet Archive. Reference page.
Shaw, S. 1958. [1957] A revision of the New Zealand genera Eucolaspis Sharp and Atrichatus Sharp (Coleoptera: Chrysomelidae) with descriptions of two new species. Annals and Magazine of Natural History, Series 12. 10(117): 641–655. DOI: 10.1080/00222935708656008 Paywall. Reference page.

Additional references

Bryant, G.E. & Gressitt, J.L. 1957. Chrysomelidae of Fiji (Coleoptera). Pacific Science 11(1): 2–91. hdl: 10125/8611 Open access. Reference page.
Doddala, P.R.C. 2012. Systematics of Eucolaspis (Coleoptera: Chrysomelidae) in New Zealand and ecology of Hawke's Bay lineage. Unpublished thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Ecology at Massey University, Manawatu, New Zealand. handle
Doddala, P.R.C. Trewick, S.A., Rogers, D.J. & Minor, M.A. 2013. Predictive modelling of adult emergence in a polyphagous Eucolaspis (Chrysomelidae: Eumolpinae) leaf beetle. Journal of economic entomology 106(2): 899–904. DOI: 10.1603/EC12363 Reference page.
Gómez-Zurita, J. 2019. Comments on the taxonomy and distribution of Eucolaspis Sharp and Atrichatus Sharp in New Zealand and description of E. kotatou sp. nov. (Coleoptera: Chrysomelidae, Eumolpinae). New Zealand Entomologist 42(2): 79–99. DOI: 10.1080/00779962.2019.1660451 Paywall. Reference page.

Eucolaspis is a genus of leaf beetles in the subfamily Eumolpinae. It is native to New Zealand, where it is a serious pest of apple trees and other fruit crops.[3] The genus has also been reported from Fiji.[4][5]
Taxonomy

The taxonomy of the genus is generally considered to be unresolved, as it is ambiguous how many species the genus contains.[3]

Fifteen species were described from New Zealand by Fabricius (1781), White (1846) and Broun (1880, 1893, 1909). In 1957, Shaw revised the genus, reducing the number of species in New Zealand to five (including two newly described species of his own).[2] However, later entomologists ignored Shaw's synonymy.[3] In the same year, two species of the genus were described from Fiji by Bryant and Gressitt.[4]

In 2015, using morphological and genetic evidence, several researchers proposed instead just three lineages (or putative species) of the genus in the mainland of New Zealand, using the names "Eucolaspis puncticollis", "Eucolaspis picticornis" and "Eucolaspis jucunda".[3] However, in 2019, Spanish entomologist Jesús Gómez-Zurita analysed the diversity and distribution of the genus, and his observations generally agreed with the conclusions of Shaw's 1957 revision, identifying at least five species of Eucolaspis in New Zealand. In addition, he described a new species, Eucolaspis kotatou, from Te Paki, near Cape Reinga.[6]
Species

New Zealand species, according to Shaw (1957)[2] and Gómez-Zurita (2019):[6]

Eucolaspis antennata Shaw, 1957
Eucolaspis brunnea (Fabricius, 1781) (synonyms: E. brevicollis (Broun, 1880); E. ochracea Broun, 1893; E. colorata Broun, 1893; E. vittiger Broun, 1893; E. picticornis Broun, 1893)
Eucolaspis hudsoni Shaw, 1957
Eucolaspis jucunda (Broun, 1880) (synonyms: E. subaenea (Broun, 1880); E. mera (Broun, 1880); E. atrocerulea (Broun, 1880))
Eucolaspis kotatou Gómez-Zurita, 2019
Eucolaspis pallidipennis (White, 1846) (synonyms: E. puncticollis (Broun, 1880); E. sculpta (Broun, 1880); E. montana Broun, 1893; E. plicatus Broun, 1909)

Fiji species, according to Bryant & Gressitt (1957):[4]

Eucolaspis castanea Bryant, 1957
Eucolaspis saltator Gressitt, 1957

References

Sharp, D. (1886). "On New Zealand Coleoptera, with descriptions of new genera and species". The Scientific Transactions of the Royal Dublin Society. 2. 3: 351–454, plates XII-XIII.
Shaw, S. (1957). "A revision of the New Zealand genera Eucolaspis Sharp and Atrichatus Sharp (Coleoptera: Chrysomelidae) with descriptions of two new species". Annals and Magazine of Natural History. 12. 10 (117): 641–655. doi:10.1080/00222935708656008.
Doddala, P.R.C.; Minor, M.A.; Rogers, D.J.; Trewick, S.A. (2015). "Fifteen into Three Does Go: Morphology, Genetics and Genitalia Confirm Taxonomic Inflation of New Zealand Beetles (Chrysomelidae: Eucolaspis)". PLOS One. 10 (11): e0143258. doi:10.1371/journal.pone.0143258. PMC 4657921. PMID 26600380.
Bryant, G. E.; Gressitt, J. L. (1957). "Chrysomelidae of Fiji (Coleoptera)" (PDF). Pacific Science. 11 (1): 2–91. hdl:10125/8611.
Evenhuis, Neal L. (2013). "Fiji Coleoptera Checklist". hbs.bishopmuseum.org. Retrieved 20 July 2018.
Gómez-Zurita, Jesús (2019). "Comments on the taxonomy and distribution of Eucolaspis Sharp and Atrichatus Sharp in New Zealand and description of E. kotatou sp. nov. (Coleoptera: Chrysomelidae, Eumolpinae)". New Zealand Entomologist. 42 (2): 79–99. doi:10.1080/00779962.2019.1660451. S2CID 203409381.