Neocnemis occidentalis Crotch, 1867



Taxonomy & Nomenclature



Conservation Status


Last record: 1865

IUCN RedList status: Extinct


Only known from a single specimen collected on Santa Maria (Azores) in 1865 that may have originated from outside the Azores (Stüben, 2019). In either case, it has never been recorded since.



putatively Santa Maria (Island), Azores (eastern); elsewhere?


Although only known from a single specimen collected on Santa Maria (Azores) in 1865, it has been suggested that it was in fact transported to the island and thus its natural distribution lies elsewhere (Stüben, 2019).


Biology & Ecology










Original scientific description:

Crotch, G. R. (1867). On the Coleoptera of the Azores. Proceedings of the Zoological Society of London 1867: 359-391.


Other references:

Borges, P. A. V., Costa, A., Cunha, R., Gabriel, R., Gonçalves, V., Martins, A.F., Melo, I., Parente, M., Raposeiro, P., Rodrigues, P., Santos, R.S., Silva, L., Vieira, P. & Vieira, V. 2010. A list of the terrestrial and marine biota from the Azores. Princípia, Cascais.

Borges, P.A.V., Gaspar, C., Crespo, L., Rigal, F., Cardoso, P., Pereira, F., Rego, C., Amorim, I.R., Melo, C., Aguiar, C., André, G., Mendonça, E., Ribeiro, S.P., Hortal, J., Santos, A.M., Barcelos, L., Enghoff, H., Mahnert, V., Pita, M.T., Ribes, J., Baz, A., Sousa, A.B., Vieira, V., Wunderlich, J., Parmakelis, A., Whittaker, R.A., Quartau, J.A., Serrano, A.R.M. & Triantis, K.A. 2016. New records and detailed distribution and abundance of selected arthropod species collected between 1999 and 2011 in Azorean native forests. Biodiversity Data Journal 4(e10948): 1-84.

Borges, P. A. V. and Lamelas-López, L. (2018). Neocnemis occidentalis. The IUCN Red List of Threatened Species 2018: e.T97161884A99166654. Downloaded on 06 July 2018.

Borges, Paulo Alexandre Vieira, Lamelas-López, Lucas, Amorim, Isabel R., Danielczak, Anja, Nunes, Rui, Serrano, Artur R. M., Boieiro, Mário, Rego, Carla, Hochkirch, Axel and Vieira, Virgílio. (2017). Conservation status of the forest beetles (Insecta, Coleoptera) from Azores, Portugal. Biodiversity Data Journal 5: e14557.

Ferreira, M.T., Cardoso, P., Borges, P.A.V., Gabriel, R., Azevedo, E.B., Reis, F., Araújo, M.B. and Elias, R.B. 2016. Effects of climate change on the distribution of indigenous species in oceanic islands (Azores). Climate Change 138: 603-615.

Godman, Frederick Du Cane. (1870). Natural History of the Azores, or Western Islands. London: John Van Voorst. 360 pp.

De Jong, Y., Verbeek, M., Michelsen, V., Bjørn, P.P., Los, W., Steeman, F., Bailly, N., Basire, C., Chylarecki, P., Stloukal, E., Hagedorn, G., Wetzel, F.T., Glöckler, F., Kroupa, A., Korb, G., Hoffmann, A., Häuser, C., Kohlbecker, A., Müller, A., Güntsch, A., Stoev, P. and Penev, L. 2014. Fauna Europaea – all European animal species on the web. Biodiversity Data Journal 2: e4034. DOI: 10.3897/BDJ.2.e4034.

Oromi P, Serrano ARM, Borges PAV. 2010. Coleoptera (Coccinellidae). In: Borges PAV, Costa A et al. (eds). A list of the terrestrial and marine biota from the Azores. pp. 222-232. Principia, Cascais. 432 pp.

Stüben, Peter E. (2019). Ausgestorbene Arten leben gelegentlich länger – zum Schicksal von Neocnemis occidentalis Crotch, 1867 (Coleoptera: Curculionidae) von den Azoren / Extinct species occasionally live longer – on the fate of Neocnemis occidentalis Crotch, 1867 (Coleoptera: Curculionidae) from the Azores. Entomologie heute 31: 31-37.

Terzopoulou, Sofia, Rigal, François, Whittaker, Robert J., Borges, Paulo A. V. and Triantis, Kostas A. (2015). Drivers of extinction: the case of Azorean beetles. Biol. Lett. 11: 20150273.


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