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Diversity 2018, 10(3), 66; https://doi.org/10.3390/d10030066

Phylogeny of the Genus Dichotrachelus (Coleoptera: Curculionidae: Cyclominae)

1
Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123 Torino, Italy
2
Naturmuseum Solothurn, Klosterplatz 2, 4500 Solothurn, Switzerland
3
Natur-Museum Luzern, Kasernenplatz 6, 6003 Luzern, Switzerland
*
Author to whom correspondence should be addressed.
Received: 7 May 2018 / Revised: 5 July 2018 / Accepted: 5 July 2018 / Published: 18 July 2018
(This article belongs to the Special Issue Systematics and Phylogeny of Weevils)
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Abstract

A phylogenetic analysis of the genus Dichotrachelus (Curculionidae: Cyclominae) was carried out, based on a morphological matrix and, for some species, on mitochondrial cytochrome oxidase I sequences. Bayesian Inference, Maximum Likelihood and Maximum Parsimony were implemented and the results were compared. The genus is found to be isolated in the subfamily, not related to the only other Palaearctic tribe (Hipporhinini) and possibly nearer to the south-American genera of Cyclominae of the tribe Listroderini. Among these, Macrostyphlus is also equally associated to mosses as the host plant. In Dichotrachelus, two main clades were recognized, one distributed in the western part of the Mediterranean region (Iberian Peninsula, northern Africa and southern France) and the second distributed in the Alps and Apennines. Within each clade, some differentiated monophyletic subgroups could be identified. An evaluation of the most important characters that led to the phylogenetic reconstruction indicated the male genital sclerite as the most useful structure to characterize the different clades. View Full-Text
Keywords: Dichotrachelini; systematics; morphology; evolution; mt-Cox1 Dichotrachelini; systematics; morphology; evolution; mt-Cox1
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Meregalli, M.; Germann, C.; Bernasconi, M.V.; Cervella, P. Phylogeny of the Genus Dichotrachelus (Coleoptera: Curculionidae: Cyclominae). Diversity 2018, 10, 66.

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