Molecular phylogeny in 'nano-weevils': description of a new subgenus Nanoacalles and two new species of Calacalles from the Macaronesian Islands (Curculionidae: Cryptorhynchinae)

Publication Type:Journal Article
Authors:J. J. Astrin, Stueben P. E.
Date Published:30 Nov
:Calacalles, Calacalles hermigua, Calacalles nataliae

A molecular phylogeny for the eastern Atlantic weevil genus Calacalles Peyerimhoff, 1925 is presented, using two mitochondrial genes (CO1 and 16S). Based on a phylogenetic (Bayesian) analysis, we propose the following taxonomic amendments: the new subgenus Nanoacalles subg. n. is described and two new species, Calacalles hermigua sp. n. and Calacalles nataliae sp. n., are described from the Canarian island La Gomera and distinguished from other species of the genus. Calacalles palmensis (Roudier, 1954) (formerly Acalles wollastoni palmensis Roudier, 1954), which is illustrated here for the first time (habitus and aedeagus), is not a synonym of Acalles seticollis Wollaston, 1864, but a valid taxon. Calacalles subcarinatus (Israelson, 1984) from the Azores is assigned to the subgenus Crateracalles Stuben 2004. We also present a catalogue of all known Calacalles species.

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