Tag Archives: Rhyncogonus

Rhyncogonus bryani Perkins

Bryan’s Rhyncogonus Weevil (Rhyncogonus bryani)

Bryan’s Rhyncogonus Weevil was described in 1919, it is known from only a single specimen.

The species was endemic to the island of Laysan in the northwestern part of the Hawaiian Islands chain; its biology is completely unknown.

Bryan’s Rhyncogonus Weevil disappeared as an aftermath of the complete denudation of Laysan Island’s vegetation following the introduction of Rabbits (Oryctolagus cuniculus (L.)) in 1909.

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References:

[1] G. A. Samuelson: Review of Rhyncogonus of the Hawaiian Islands (Coleoptera: Curculionidae). Bishop Museum Press, Honolulu 2003

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edited: 27.01.2019

Rhyncogonus extraneus Perkins

Strange Rhyncogonus Weevil (Rhyncogonus extraneus)

The Strange Rhyncogonus Weevil was described in 1910, it was restricted to the lowlands below the Wai’anae Range on the island of O’ahu, Hawaiian Islands, a region that is now mostly covered with introduced vegetation. 

The species was not seen since 1941, when it was last collected; it is very likely extinct. [1]

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References:

[1] G. A. Samuelson: Review of Rhyncogonus of the Hawaiian Islands (Coleoptera: Curculionidae). Bishop Museum Press, Honolulu 2003

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edited: 02.06.2021