Naupactus auricinctus Boheman, 1833

Río, M. Guadalupe Del & Lanteri, Analía A., 2018, New synonymies, new combinations and lectotype designations for weevils in the tribe Naupactini (Coleoptera: Curculionidae: Entiminae), Zootaxa 4500 (3), pp. 329-340 : 334

Naupactus auricinctus Boheman, 1833

Naupactus auricinctus Boheman, 1833: 584–585 . Type material: lectotype female herein designated; Brazil; NHRS, col. Schoenherr. Length: 12.5 mm ( Fig. 11 ).

Naupactus ruficornis Boheman, 1840: 40 . Type material: lectotype male herein designated; Brazil; NHRS, col. Schoenherr. Length: 13 mm ( Fig. 12 ). New synonymy.

Naupactus chloris Hustache, 1947: 82 . Type material: lectotype female herein designated; Argentina, Misiones, Río Paraná; MNHN, col. Hustache. Length: 13 mm. Synonymy by Kuschel 1955: 279.

Geographic distribution: Northern Argentina ( Chaco , Misiones and Santiago del Estero ), Bolivia (Santa Cruz), Brazil ( Minas Gerais , Rio Grande do Sul , Santa Catarina and São Paulo ), and Paraguay ( Central , Cordillera , Guairá , Itapúa and Paraguarí ). Bolivia is a new country record (one female from Santa Cruz, Ichilo, Buena Vista, II-1950, A. Martínez MZSP) .

Remarks: Herein we establish the synonymy of N. auricinctus (female syntypes) with N. ruficornis (male type) because their morphological differences are due to sexual dimorphism. In Schoenherr’s collection we found two specimens labeled as typus of N. auricinctus , one of them with an additional label of holotypus, G. Kuschel 1985. In Chevrolat’s collection we found two other females labeled as paratypes, which are probably not part of the type series. We consider that the holotypus and paratypes labels are not correct because all the specimens are syntypes, consequently, we designated the female that bears the label of holotypus as lectotype.

The type series of N. chloris includes one female labeled as type and 23 females from Argentina (Misiones, Chaco and Santiago del Estero provinces) and Paraguay (Hohenau, Itapúa department) mentioned in the original description as part of the type series. We designated the specimen that bears the label of type as the lectotype. In the females from Argentina and Paraguay (= type of N. chloris ) the pronotum is slightly wider than in those from Brazil (type of N. auricinctus ); in the males (= type of N. ruficornis ) the pronotum is more convex than in the females.

Figures

FIGURES 10–20. Habitus photographs of the species of Naupactini treated herein. 10, Lanterius inermis (Hustache) (senior syn. of Mimographus ocellatus (Lanteri), female MLP). 11, Naupactus auricinctus Boheman, lectotype female NHRS. 12, Naupactus ruficornis Boheman (junior syn of N. auricinctus), lectotype male NHRS. 13, Naupactus bridgesii Waterhouse, lectotype male NHM. 14, Naupactus angulithorax Hustache (junior syn. of N. bridgesii), lectotype female MNHN. 15, Naupactus condecoratus Boheman, lectotype female NHRS. 16, Naupactus bosqi Hustache (junior syn of N. condecoratus), holotype male NMNH. 17, Naupactus cyphoides (Heller), female. 18, Naupactus calamuchitanensis Hustache (junior syn of N. cyphoides), male. 19, Naupactus viridinitens Hustache (junior syn of N. cyphoides), female. 20, Naupactus viridulus Hustache (junior syn of N. cyphoides), paralectotype male MNHN. 21, Trichonaupactus rexus Hustache (junior syn of T. densior Hustache), holotype female MNHN. Figure 10 scale= 1 mm. Figures 11–20 scales= 2 mm.