The discovery of Barretonus (Curculionidae: Cossoninae) in the Canary Islands: barcoding, morphology and description of new species
García Rafael, Andújar Carmelo, Oromí Pedro, Emerson Brent, López Heriberto
Acta Entomologica Musei Nationalis Pragae 59(2): 443-452, 2019
Published online: 16th August 2019
Published in print: 31st December 2019
Views: 1470
Abstract: The genus Barretonus Roudier, 1958 is a genus endemic to Macaronesia, described
from the archipelago of Madeira where four species are known to date. In this
study, two new species of Barretonus, B. auarita García & Oromí sp. nov.
(from La Palma, Canary Islands) and B. daute García & Andújar sp. nov.
(from Tenerife, Canary Islands), are described based on morphological and
molecular evidence (mtCOI), and additional notes on their biology and ecology
are provided. Morphology of the new species is compared with the other
representatives of the genus, and their phylogenetic relationships with a
Barretonus representative from Madeira and species from additional genera within
the Cossoninae are shown. This work increases the number of species of the genus
Barretonus from four to six anophthalmous or microphthalmous species with an
endogean lifestyle, and incorporates the Canary Islands into its Macaronesian
range of distribution.
Key words: Coleoptera, Curculionidae, Cossoninae, Barretonus, new species, DNA barcoding, endogean, Canary Islands, Macaronesia, Palaearctic Region
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