Arthropod Systematics & Phylogeny 71(1): 43-68, doi: 10.3897/asp.71.e31765
Phylogeny of the Saxifraga-associated species of Dichotrachelus (Insecta: Coleoptera: Curculionidae), with remarks on their radiation in the Alps
expand article infoMassimo Meregalli, Fabrizio Menardo, Klaus Klass§, Piero Cervalla
‡ Università di Torino, Italy§ Museum für Tierkunde Dresden, Dresden, Germany
Open Access
A phylogenetic analysis of the Saxifraga-associated species of Dichotrachelus was carried out based on morphological and, for some species, molecular data. The various methods implemented gave congruent results and yielded a significantly supported phylogenetic inference of the relationships among the species. Saxifraga-associated species form a monophyletic unit, and some species-groups were evidenced, distributed in the eastern, central and western Alps, respectively. Based on the phylogenetic inference, and taking into account palaeogeological and palaeogeographical information, a biogeographic scenario of the events that may have led to the present-day distribution is proposed.
Alpine speciation, ecological niche-shift, Cyclominae, Dichotrachelus, glacial refugia, COI sequences, phylogeography, taxonomy