Integrative taxonomy, phylogeny, and new species of the weevil genus onyxacalles Stüben (Coleoptera: Curculionidae: Cryptorhynchinae)

Abstract

A molecular phylogeny of the western Palearctic weevil genus Onyxacalles Stben, 1999 is presented, combining two mitochondrial genes (COI and 16S) in a Bayesian analysis. Based on molecular data, Onyxacalles pyrenaeus Boheman, 1844 is transferred into the genus Kyklioacalles Stben 1999 (K. fausti group) and-in an integrative taxonomy framework-the interaction between morphology and molecular analysis is illustrated. The species of Onyxacalles s. str. are assigned to three new species groups, O. henoni, O. luigionii, and O. portusveneris groups. The distribution of the related species in the Mediterranean area is illustrated with values of COI and 16S p-distances. Three new species are described and distinguished from their related species: Onyxacalles nuraghi Stben sp.n. from Italy (Sardinia), Onyxacalles torre Stben and Astrin sp. n. from France (Corsica) and Onyxacalles vilae Stben sp. n. from Croatia (Velebit Mts.). A catalogue of all 20 species of Onyxacalles is given, and a key is finally presented combined with image stacking of the habitus and aedeagus for all species. © 2012 Peter E. Stben and Jonas J. Astrin.