Description of immature stages of species (Coleoptera, Curculionidae, Mecinini) with a focus on diagnostic morphological characters at the species and genus levels.

The mature larvae of the following fourteen species are described and illustrated: (Paykull, 1800), (Gravenhorst, 1807), (Gyllenhal, 1813), (Rosenschoeld, 1838), (Rubsaamen, 1895), (H. Brisout de Barneville, 1862), (Kirsch, 1881), (Panzer, 1796), (Boheman, 1838), (Germar, 1821), (Gyllenhal, 1838), Toševski & Caldara, 2015, (Fabricius, 1792), and (Germar, 1821). The pupae of thirteen of them (except ) were also described.

Description and biological notes of the larva of Rosenschoeld, 1838 (Coleoptera, Curculionidae), with a comparison with other species of the tribe Cionini.

The mature larva of Rosenschoeld, 1838 is described and illustrated in detail for the first time. It is compared with those known from the same genus and other genera in the tribe Cionini and with those of the hypothesized sister tribe Mecinini in the Curculioninae. The larvae of have three distinctive diagnostic features: the reduced number of setae on the epicranium (only two or three and one or two ) and on the epipharyngeal lining (only two , two , and no ); i.

Immature stages of Palearctic species (Coleoptera, Curculionidae, Curculioninae): morphological characters diagnostic at genus and species levels.

The immature stages of ten species are described for the first time and those of two other species are redescribed, adding important chaetotaxy characters that were missing from previous descriptions. These species belong to six of the nine assemblages of species previously established according to a phylogenetic analysis. All these groupings are confirmed on the basis of several characters of mature larvae and pupae.

Morphological characters of immature stages of Palaearctic species of and and their systematic value in Mecinini (Coleoptera, Curculionidae, Curculioninae).

The relationship between the genera and of Mecinini (Curculionidae, Curculioninae) was tested on the basis of morphological characters from the immature stages. The mature larvae of five species ( (Boheman, 1845), (Gyllenhal, 1813), (Gyllenhal, 1838), (Desbrochers des Loges, 1893), and (H. Brisout de Barneville, 1863)), three species ( Solari, 1947, (Herbst, 1795), and (Linnaeus, 1767)), and the pupae of four species (, , , and ) and two species ( and ) are described in detail for the first time.