Dichotrachelus orobicus, a new species from the Bergamasque Prealps, is described. It is closely related to D. grignensis from the Grigna Massif, from which it differs mainly in the COI and ITS2 sequences, and minute morphological characters. Remarks on the possible epoch of speciation between the two taxa, with an analysis of the biogeographic scenario that may have led to the disjunction, are discussed.

A new cryptic species of Dichotrachelus from the Bergamasque Prealps, a late Miocene centre of speciation for the alpine fauna (Coleoptera: Curculionidae: Cyclominae)

Massimo Meregalli
;
Alfredo Santovito
2021-01-01

Abstract

Dichotrachelus orobicus, a new species from the Bergamasque Prealps, is described. It is closely related to D. grignensis from the Grigna Massif, from which it differs mainly in the COI and ITS2 sequences, and minute morphological characters. Remarks on the possible epoch of speciation between the two taxa, with an analysis of the biogeographic scenario that may have led to the disjunction, are discussed.
2021
79
281
293
https://arthropod-systematics.arphahub.com/issue/3240/
Alpine fauna, cryptic species, mitochondrial cytochrome c oxidase 1, internal transcribed spacer 2, molecular clock, new species, phylogeny, speciation
Massimo Meregalli, Manfred Kahlen, Riccardo Monguzzi, Valentina Marzia Rossi, Alfredo Santovito
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1826777
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