@article {5663,
	title = {Systematics of Sitonini (Coleoptera: Curculionidae: Entiminae), with a hypothesis on the evolution of feeding habits},
	journal = {Systematic Entomology},
	volume = {32},
	year = {2007},
	pages = {312-331},
	abstract = {A 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 Gonza{\textasciiacute} lez. The species composition of the genus Charagmus Scho{\textasciidieresis} nherr is unchanged. Andrion gen.n. is described (type species: Curculio regensteinensis Herbst, 1794). Catachaenus Scho{\textasciidieresis} nherr, 1840 is synonymized with Eugnathus Scho{\textasciidieresis} nherr, 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 {\textquoteleft}temperate herbaceous tribes{\textquoteright} or Hologalegina. This group is divided into the sister clades, Loteae s.l. and IRLC (inverted repeat-lacking clade) {\textendash} 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 {\textquoteleft}hamuli{\textquoteright}. 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 Ku{\textasciidieresis} ster, 1847, Ch. griseus (Fabricius, 1775), Ch. cachectus Gyllenhal, 1834, Ch. stierlini Reitter, 1903, Ch. variegatus (Fao hraeus, 1840), Coelositona ribesi (Gonza{\textasciiacute} lez, 1971), C. cambricus (Stephens, 1831), C. cinerascens (Fao hraeus, 1840), C. limosus (Rossi, 1792), C. ocellatus (Ku{\textasciidieresis}ster, 1849), C. latipennis (Gyllenhal, 1834), C. puberulus (Reitter, 1903), C. villosus (Allard, 1869), Andrion regensteinense (Herbst, 1794) and Anemeroides lutosus (Hochhuth, 1847).},
	url = {http://darwin.bio.ucm.es/usuarios/bba/cont/docs/103.pdf},
	author = {Velasquez de Castro, A.J. and Miguel Angel Alonso-Zarazaga and Outerelo, R.}
}
@article {3414,
	title = {Systematics of Sitonini (Coleoptera: Curculionidae: Entiminae), with a hypothesis on the evolution of feeding habits},
	journal = {Systematic Entomology},
	volume = {32},
	year = {2007},
	pages = {312-331},
	chapter = {312},
	abstract = {A 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 Gonza{\textasciiacute} lez. The species composition of the genus Charagmus Scho{\textasciidieresis} nherr is unchanged. Andrion gen.n. is described (type species: Curculio regensteinensis Herbst, 1794). Catachaenus Scho{\textasciidieresis} nherr, 1840 is synonymized with Eugnathus Scho{\textasciidieresis} nherr, 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 {\textquoteleft}temperate herbaceous tribes{\textquoteright} or Hologalegina. This group is divided into the sister clades, Loteae s.l. and IRLC (inverted repeat-lacking clade) {\textendash} 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 {\textquoteleft}hamuli{\textquoteright}. 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 Ku{\textasciidieresis} ster, 1847, Ch. griseus (Fabricius, 1775), Ch. cachectus Gyllenhal, 1834, Ch. stierlini Reitter, 1903, Ch. variegatus (Fao hraeus, 1840), Coelositona ribesi (Gonza{\textasciiacute} lez, 1971), C. cambricus (Stephens, 1831), C. cinerascens (Fao hraeus, 1840), C. limosus (Rossi, 1792), C. ocellatus (Ku{\textasciidieresis}ster, 1849), C. latipennis (Gyllenhal, 1834), C. puberulus (Reitter, 1903), C. villosus (Allard, 1869), Andrion regensteinense (Herbst, 1794) and Anemeroides lutosus (Hochhuth, 1847).},
	url = {http://darwin.bio.ucm.es/usuarios/bba/cont/docs/103.pdf},
	author = {Velasquez de Castro, A.J. and Miguel Angel Alonso-Zarazaga and Outerelo, R.}
}
