Chiloneus cinerascens ( Rosenhauer, 1856 )

Borovec, Roman & Perrin, Hélène, 2016, On the systematic position of some species of Chiloneus, Desbrochersella and Sciaphilus, with description of two new species and lectotype selection (Coleoptera: Curculionidae: Entiminae), Zootaxa 4109 (2), pp. 131-152 : 137

publication ID	https://doi.org/ 10.11646/zootaxa.4109.2.2
publication LSID	lsid:zoobank.org:pub:47471B47-156A-45D1-9F3A-659DD8600043
DOI	https://doi.org/10.5281/zenodo.6055350
persistent identifier	https://treatment.plazi.org/id/EF648790-FFA5-FFCF-FF7D-953BB71A6F63
treatment provided by	Plazi
scientific name	Chiloneus cinerascens ( Rosenhauer, 1856 )
status

Treatment

Chiloneus cinerascens ( Rosenhauer, 1856) View in CoL

Omias cinerascens Rosenhauer, 1856: 260 View in CoL .

Sciaphilus nitens Pic, 1904b: 92 , syn. nov. Type locality: Algérie.

Chiloneus nitens: Winkler, 1932: 1469 View in CoL ; Dalla Torre et al., 1937: 178; Borovec, 2013b: 380. Barypithes cinerascens: Winkler, 1932: 1474 View in CoL ; Dalla Torre et al., 1937: 146. Rhinochrosis seminitidus Hustache, 1941: 163 View in CoL , syn. nov. Type locality: [ Morocco] Chiker. Rhinochrosis seminitidus: Kocher, 1961: 57 View in CoL .

Desbrochersella cinerascens: González, 1970: 55 ; Alonso-Zarazaga, 2002: 23; Borovec, 2006: 35; Borovec, 2013b: 297. Chiloneus seminitidus: Alonso-Zarazaga, 1984: 217 View in CoL ; Borovec, 2013b: 380.

Type locality. [ Spain] Sierra Nevada ( Rosenhauer, 1856).

Type material examined. Sciaphilus nitens . Lectotype (here designated): 1 spec. ( MNHN, Pic coll.), ‘ Algerie [hw] // Ouarsenis [hw] // type [hw, yellow] // Sc. nitens Pic [hw] // nitens var / du Maroc / cf coll. Rotrou / forme un peu moins / élargie [hw] // TYPE [p, red] // LECTOTYPUS / Sciaphilus / nitens Pic, 1904 / Borovec & Perrin desig. 2015 [p, red] // Chiloneus / cinerascens (Ros.) , R. Borovec det. 2015 [hw/p]’.

Additional material examined. Rhinochrosis seminitidus . 1 spec. ( MNHN, Hoffmann coll.), ‘ Algerie / Biskra / Bonnaire [hw] // Rhinochrosis / seminitidus / Hust. [hw] // Chiloneus cinerascens (Rosenh.) , R. Borovec det. 2015 [p]’. 1 spec. ( MNHN, Hoffmann coll.), ‘Marrakech / Maroc [hw] // Rhinochrosis / seminitidus Hust. [hw] / A. Hoffmann det. [p] // Chiloneus cinerascens (Rosenh.) , R. Borovec det. 2015 [hw/p]’.

Remarks. The lectotype of Sciaphilus nitens is 3.51 mm long. Two specimens of Rhinochrosis seminitidus found in Hoffmann’s collection fit the description very well, so we have no doubts this species is merely a new subjective junior synonym of Chiloneus cinerascens . Chiloneus cinerascens is easily distinguished from all other species of the genus by moderately long, slender, piliform semierect setae on elytra, as well as piliform appressed elytral setae.