Hadramphus tuberculatus Pascoe, 1877:142

Canterbury knobbed weevil, Spaniard weevil, Banks Peninsula speargrass weevil



Taxonomy & Nomenclature

Synonym/s: Karocolens tuberculatus Pascoe, 1877:142; Lyperobius tuberculatus Pascoe, 1877:142


Conservation Status

Last Record: 2 December 1912 (Kuschel & Worthy, 1996:19) (Waimate, 1922?)

Rediscovered in 12 December 2004

IUCN RedList status: Critically Endangered


According to (Craw, 1999:23) this species was last collected from Waimate in 1922, before being rediscovered in 2004 (Young et al. 2008). This species was previously listed as extinct by the IUCN (Chinn, 2014).



Canterbury Plains, South Island, New Zealand


Biology & Ecology










Original scientific description:

Pascoe, F. P. (1877). Descriptions of new genera and species of New Zealand Coleoptera. Annals and Magazine of Natural History (4)19: 140-147.


Other references:

Chinn, W. (2014). Hadramphus tuberculatus. The IUCN Red List of Threatened Species. Version 2014.1. ( Downloaded on 06 July 2014.

Craw, R. C. (1999). Molytini (Insecta: Coleoptera: Curculionidae: Molytinae). Fauna of New Zealand 39, 68 pp.

Fountain, Emily D. (2008). The search for Hadramphus tuberculatus and the future of this nationally endangered weevil. Unpublished report for Lincoln University

Fountain, Emily D. (2013). Time travelling weevils: Unravelling the evolutionary past of Hadramphus using historical and modern DNA. Thesis. [Abstract]

Fountain, Emily D. et al. (2015). Captive rearing of the endangered weevil Hadramphus tuberculatus (Pascoe, 1877) (Coleoptera: Curculionidae: Molytinae) for ex-situ conservation.
New Zealand Entomologist. DOI:10.1080/00779962.2015.1078434 [Abstract]

Fountain, Emily et al. (2018). The Molecular Phylogeny of the New Zealand Endemic Genus Hadramphus and the Revival of the Genus Karocolens. Diversity 10(3): 88.

Fountain, Emily D., Wiseman, Benjamin H., Cruickshank, Robert H. and Paterson, Adrian M. (2013). The ecology and conservation of Hadramphus tuberculatus (Pascoe 1877) (Coleoptera: Curculionidae: Molytinae). Journal of Insect Conservation 17(4): 737-745. [Abstract]

Iles, J. (2007). Conservation and biology of the rediscovered nationally endangered Canterbury knobbled weevil Hadramphus tuberculatus. Unpublished report for Lincoln University, Lincoln.

Johns, P. M. (2006). Burkes Pass Scenic Reserve: Report on the endangered weevil Hadramphus tuberculatus. Unpublished report for Department of Conservation, Christchurch.

Kuschel, G. (1971). Entomology of the Aucklands and other islands south of New Zealand. Pacific Insects Monograph 27: 225-259.

Kuschel, G. (1987). The subfamily Molytinae (Coleoptera: Curculionidae): general notes and descriptions of new taxa from New Zealand and Chile. New Zealand Entomologist 9(11-29).

Kuschel, G. and Worthy, Trevor H. (1996). Past distribution of large weevils (Coleoptera: Curculionidae) in the South Island, New Zealand, based on Holocene fossil remains. New Zealand Entomologist 19: 15-22.

Leschen, R. A. B., Marris, J. W. M., Emberson, R. M., Nunn, J., Hitchmough, R. A. and Stringer, I. A. N. (2012). The conservation status of New Zealand Coleoptera. New Zealand Entomologist 35(2): 91-98.

Pawson, S. M. and Emberson, R. M. (2000). The conservation status of invertebrates in Canterbury. Conservation Advisory Science Notes No. 320, Department of Conservation, Wellington. 16 pp.

Worthy, T. H. and Holdaway, R.N. (1996). Quarternary fossil faunas, overlapping taphonomies, and palaeofaunal reconstruction in North Canterbury, South Island, New Zealand. Journal of the Royal Society of New Zealand 26: 275-361.

Young, Laura M., Marris, John W. M. and Pawson, Stephen M. (2008). Back from extinction: rediscovery of the Canterbury knobbled weevil Hadramphus tuberculatus (Pascoe 1877) (Coleoptera: Curculionidae), with a review of its historical distribution. New Zealand Journal of Zoology 35(4): 323-330.


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