Rhyncogonus bryani Perkins, 1919

Bryan's weevil



Taxonomy & Nomenclature



Conservation Status


Last record: 1911 (Lyal, 2014b)

IUCN RedList status: Extinct



Laysan, Hawaiian Islands


Biology & Ecology










Original scientific description:

Perkins, R. C. L. (1919). A new species of otiorrhynchine beetle of the genus Rhyncogonus Sharp from Laysan Island. Entomologist’s Monthly Magazine 55: 4.


Other references:

Asquith, A. (1995). Alien species and the extinction crisis of Hawaii’s invertebrates. Endangered Species Update 12(6): 6-11.

Beattie, M. H. (1994). Endangered and threatened wildlife and plants; animal candidate review for listing as endangered or threatened species; proposed rule. Federal Register 59(219): 58982-59028.

Gagné, W.C. & L.W. Cuddihy. (1990). Vegetation. In: Wagner, W.L., D.R. Herbst & S.L. Sohmer, (ed.), Manual of the flowering plants of Hawai‘i., pp. 45-114. University of Hawaii Press & Bishop Museum Press, Honolulu.

Groombridge, B. (ed.). 1994. 1994 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK.

Lyal, C. (2014a). Rhyncogonus bryani. The IUCN Red List of Threatened Species. Version 2014.1. ( Downloaded on 09 July 2014.

Lyal, C. (2014b). Rhyncogonus bryani. The IUCN Red List of Threatened Species 2014: e.T19724A21424429. Downloaded on 27 June 2021.

Samuelson, G. A. (2003). Review of Rhyncogonus of the Hawaiian Island (Coleoptera: Curculionidae). Bishop Museum in Entomology No. 11. Honolulu: Bishop Museum Press. 107 pp.


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