00480nas a2200109   4500008004100000245011500041210006900156260005500225300001400280100003000294856004600324       1998                        eng d00aMorphology and taxonomy of the genus Sitona Germar, 1817. (I): the metendosternite (Coleoptera: Curculionidae)0 aMorphology and taxonomy of the genus Sitona Germar 1817 I the me  aMuseo Regionale di Scienze Naturali, Torino, Italy  a109–1231 ade Castro, A., J. Velázq  uhttps://entiminae.myspecies.info/node/38902933nas a2200157   4500008004100000022001400041245012100055210006900176300001400245490000700259520234100266100003002607700003802637700002302675856007702698       2007                        eng d  a1365-311300aSystematics of Sitonini (Coleoptera: Curculionidae: Entiminae), with a hypothesis on the evolution of feeding habits0 aSystematics of Sitonini Coleoptera Curculionidae Entiminae with   a312–3310 v323 aA new classification of Sitonini Gistel into ten genera is proposed, derived from a phylogenetic analysis based on morphology. Two subgenera of Sitona, Charagmus and Coelositona, are promoted to genus level. Sitona is restricted to the former nominotypical subgenus and redefined using apomorphies, and several species previously included in it are transferred to the genus Coelositona González. The species composition of the genus Charagmus Schönherr is unchanged. Andriongen.n. is described (type species: Curculio regensteinensis Herbst, 1794). Catachaenus Schönherr, 1840 is synonymized with Eugnathus Schönherr, 1834 (syn.n.). Homalorhinus lutosus Hochhuth, 1847 is removed from Sitonini. The relationships represented by the new classification correspond with the evolution of Fabaceae (Leguminosae), mostly with the group of ‘temperate herbaceous tribes’ or Hologalegina. This group is divided into the sister clades, Loteae s.l. and IRLC (inverted repeat-lacking clade) – a clade well defined by the loss of a structural mutation in the genome of the chloroplast. Andrion does not feed on Hologalegina. Charagmus and Coelositona feed on species of Loteae s.l., whereas members of the genus Sitona feed on species in IRLC. This ability to feed on IRLC plants seems to have been a key trait that enabled the radiation of Sitona into more than 100 species. A key to the genera of Sitonini and illustrations of important morphological features are provided. A new structure is described from the internal sac, the ‘hamuli’. The variability of hamuli between the species of Sitonini is an important new tool in the taxonomy of this tribe. New combinations: Eugnathus circulus (Eydoux & Souleyet, 1839), E. mangarinicus (Voss, 1925), E. scintillans (Pascoe, 1874), E. sulcifrons (Heller, 1934), Charagmus gressorius (Fabricius, 1792), Ch. intermedius Küster, 1847, Ch. griseus (Fabricius, 1775), Ch. cachectus Gyllenhal, 1834, Ch. stierliniReitter, 1903, Ch. variegatus (Fåhraeus, 1840), Coelositona ribesi (González, 1971), C. cambricus (Stephens, 1831), C. cinerascens (Fåhraeus, 1840), C. limosus (Rossi, 1792), C. ocellatus (Küster, 1849), C. latipennis (Gyllenhal, 1834), C. puberulus (Reitter, 1903), C. villosus (Allard, 1869), Andrion regensteinense (Herbst, 1794) and Anemeroides lutosus (Hochhuth, 1847).1 ade Castro, A., J. Velázq1 aAlonso‐Zarazaga, Miguel, Ángel1 aOuterelo, Raimundo  uhttps://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-3113.2006.00368.x