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Revista de la Sociedad Entomológica Argentina

Print version ISSN 0373-5680On-line version ISSN 1851-7471


LANTERI, Analía A.  and  DEL RIO, M. Guadalupe. Taxonomy and cladistics of the group of genera related to Cyrtomon Schoenherr (Coleoptera: Curculionidae: Naupactini). Rev. Soc. Entomol. Argent. [online]. 2016, vol.75, n.1-2, pp.55-80. ISSN 0373-5680.

In this contribution we update taxonomic and geographical information on five genera of weevils (Curculionidae: Entiminae: Naupactini) distributed in Argentina, Brazil, Bolivia, Paraguay and Uruguay. As a result of a cladistic analysis based on 48 morphological characters and 18 terminal species (two outgroups and 16 species of the ingroup) we recover a single most parsimonious tree with two main subgroups, one including Mendozella Hustache as a sister group of Cyrtomon Schoenherr, and the other including Lamprocyphopsis Lanteri, Priocyphopsis Lanteri and Priocyphus Hustache. In this tree Cyrtomon hirsutus (Hustache) is the sister species of Mendozella curvispinis (Hustache), consequently we establish the new combination Mendozella hirsuta (Hustache), and herein consider that the genus Mendozella includes two species, both from Mendoza province, Argentina. We confirm the monophyly of Cyrtomon, which includes six species, C. gibber (Pallas), C. pistor (Boheman), C. luridus (Boheman), C. inhalatus (Germar), C. ovalipennis (Hustache) and C. glaucus (Bovie). Priocyphus is monophyletic and includes five species, P. bosqi Hustache, P. hustachei Kuschel, P. inops Kuschel, P. kuscheli Lanteri and the new species Priocyphus cordobensis herein described; Lamprocyphopsis ncludes two species, L. viridinitens (Kuschel) and L. paraguayensis Lanteri; and Priocyphopsis is monotypic, with the only species P. humeridens (Hustache) recovered as sister group of Priocyphus. We provide diagnosis of all the genera, a key and habitus photographs of all the species, most of them corresponding to type specimens. Diagnostic characters of head and rostrum, front tibiae and genitalia are illustrated with line drawings. The female genitalia of Mendozella hirsuta and the male genitalia of Priocyphus kuscheli are described for the first time.

Keywords : Priocyphus; Priocyphopsis; Lamprocyphopsis; Mendozella; South America; Geographic distribution.

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