@mastersthesis {velazquez_de_castro_gonzalez_estudio_2003,
	title = {Estudio morfol{\'o}gico y taxon{\'o}mico del g{\'e}nero Sitona Germar, 1817 (Coleoptera, Curculionidae)},
	year = {2003},
	school = {Universidad Complutense de Madrid},
	type = {phd},
	address = {Madrid, Spain},
	abstract = {La clasificaci{\'o}n del g{\'e}nero sitona germar, 1817 ha sido puesta a prueba con el estudio de su anatom{\'\i}a interna y externa, incluyendo observaciones con el microscopio electr{\'o}nico de barrido. Se ha clarificado la terminolog{\'\i}a de distintas piezas internas como son el pro ventr{\'\i}culo, el metendosternito y el saco interno del edeago. Adem{\'a}s se realiza un estudio detallado de las piezas bucales. Tras realizar este estudio se utilizan los caracteres encontrados para realizar un estudio de taxonom{\'\i}a, primero por m{\'e}todo fon{\'e}ticos y luego por medio de taxonomia filogen{\'e}tico. Los resultados indican que el subg{\'e}nero charagmus schonherr, 1826 es valido, pero que varias especies del subg{\'e}nero sitona deben en realidad formar parte del subg{\'e}nero coelositona Gonz{\'a}lez, 1971. La nueva clasificaci{\'o}n propuesta muestra consistencia con la evoluci{\'o}n de las plantas de las que se alimenta este grupo de especies, basado en el an{\'a}lisis del genoma del cloroplasto. Se realiza adem{\'a}s una descripci{\'o}n completa de la anatom{\'\i}a de las especies del genero sitona, acompa{\~n}ada por mas de 400 dibujos y numerosas fotograf{\'\i}as de microscopio {\'o}ptico y electr{\'o}nico.},
	url = {https://eprints.ucm.es/4193/},
	author = {Vel{\'a}zquez de Castro Gonz{\'a}lez, Antonio Jes{\'u}s}
}
@article {morimoto_morphologic_2003,
	title = {Morphologic characters of the weevil head and phylogenetic implications (Coleoptera, Curculionoidea)},
	journal = {Esakia},
	volume = {43},
	year = {2003},
	pages = {133{\textendash}169},
	url = {https://pdfs.semanticscholar.org/8e91/8ba6df65c519ae4859522cb105db762a0bbd.pdf},
	author = {Morimoto, K. and Kojima, H.}
}
@booklet {dixon_whitefringed_2003,
	title = {Whitefringed beetles, Naupactus (= Graphognathus) spp. (Insecta: Coleoptera: Curculionidae)},
	year = {2003},
	publisher = {University of Florida, IFAS Extension},
	url = {http://entnemdept.ufl.edu/creatures/field/beetles/whitefringed_beetles.htm},
	author = {Dixon, W.}
}
@article {franz_systematics_2003,
	title = {Systematics of Cyclanthura gen. n., a new genus of Derelomini (Coleoptera: Curculionidae)},
	journal = {Insect Systematics \& Evolution},
	volume = {34},
	number = {2},
	year = {2003},
	pages = {153{\textendash}198},
	abstract = {Cyclanthura, gen. n., is described to accommodate the following 15 new Neotropical species of Derelomini (Coleoptera: Curculionidae: Curculioninae): C. laticola, sp. n.; C. sphaerata, sp. n.; C. cordata, sp. n.; C. dentata, sp. n.; C. pilosa, sp. n.; C. capitulata, sp. n.; C. tenuicola, sp. n.; C. carinata, sp. n.; C. uncinata, sp. n.; C. oculata, sp. n.; C. cultrata, sp. n.; C. striata, sp. n.; C. bipartita, sp. n.; C. crepidula, sp. n.; and C. palmata, sp. n. The monophyly of Cyclanthura is indicated by the putatively synapomorphic elytral elevations and impressions, the posteriorly explanate female tergum VIII, and the posteriorly emarginate female tergum IX. These and various other characteristics - e.g.transformations in the apical region of the male median lobe - distinguish Cyclanthura from Phyllotrox Sch{\"o}nherr to which its species would have been assigned until now. Particular species of Cyclanthura are considered to pollinate and reproduce on the inflorescences of Araceae (Anthurium) and Cyclanthaceae (Asplundia, Carludovica, Sphaeradenia, and Cyclanthus). Several significant host plant transitions appear to have evolved within the genus. These patterns are discussed in the light of a phylogeny of the species of Cyclanthura which is based on an analysis of 22 taxa and 32 characters.},
	issn = {1399-560X, 1876-312X},
	doi = {10.1163/187631203788964818},
	url = {https://brill.com/view/journals/ise/34/2/article-p153_3.xml},
	author = {Franz, Nico M.}
}
