Chiloneus pertusicollis ( Fairmaire, 1868 )

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 : 142-143

Chiloneus pertusicollis ( Fairmaire, 1868)

Sciaphilus pertusicollis Fairmaire, 1868: 494 .

Foucartia ruficornis Allard, 1869: 471 , syn. nov. Type locality: [ Algeria] Constantine.

Eusomus sphaeropterus Allard, 1869: 475 . Type locality: [ Algeria] Constantine.

Sciaphilus nasutus Desbrochers des Loges, 1897: 10, syn. nov. Type locality: [ Algeria] Constantine. Chiloneus pertusicollis: Winkler, 1932: 1469 ; Dalla Torre et al., 1937: 178; Borovec, 2013b: 380. Chiloneus nasutus: Winkler, 1932: 1469 ; Dalla Torre et al., 1937: 178; Borovec, 2013b: 380. Chiloneus ruficornis: Reitter, 1915: 189 ; Winkler, 1932: 1468; Dalla Torre et al., 1937: 178; Borovec, 2013b: 380.

Type locality. [ Algeria] Constantine ( Fairmaire, 1868).

Type material examined. Sciaphilus pertusicollis . Lectotype (here designated): 1 male ( MNHN, Fairmaire coll.), ‘ Sciaphilus / pertusicollis / Fairm. / Constantine [hw] //? Eusomus / sphaeropterus /All. Ab. 1868 [hw] // 92 [hw] // MUSEUM PARIS / Collection Léon Fairmaire / 1906 [p, blue] // LECTOTYPUS / Sciaphilus / pertusicollis Fairm., 1868 / Borovec & Perrin desig. 2015 [p, red] // Chiloneus / pertusicollis (Fairm.) / R. Borovec det. 2015 [p/ hw]’.

Sciaphilus nasutus . Lectotype (here designated): 1 female ( MNHN, Pic coll.), ‘Constantine [p] // 20 [hw] // xx [hw] // type [hw, yellow] // S. nasutus m. [hw] // Sci. nasutus n. sp. [hw] // LECTOTYPUS / Sciaphilus / nasutus Desbr., 1897 / Borovec & Perrin desig. 2015 [p, red] // Chiloneus / pertusicollis (Fairm.) / R. Borovec det. 2015 [p/ hw]’.

Foucartia ruficornis . Lectotype (here designated): 1 male (MNHN, Desbrochers coll.), ‘ Foucartia ruficornis / = Eusomus sphaeropterus Chev. / All. [hw] // Type / Allard / Constantine [hw] // Ex Museo / Desbrochers / 1914 [p] // LECTOTYPUS / Foucartia / ruficornis Allard, 1869 / Borovec & Perrin desig. 2015 [p, red] // Chiloneus / pertusicollis (Fai.) / R. Borovec det. 2015 [p/hw]’.

Eusomus sphaeropterus . Lectotype (here designated): 1 male (MNHN, Desbrochers coll.), ‘ Eusomus / sphaeropterus / Chev. / Constantine [hw, blue, rounded] // Ex Museo / E. Allard / 1899 [p] // LECTOTYPUS / Eusomus / sphaeropterus Allard, 1869 / Borovec & Perrin desig. 2015 [p, red] // Chiloneus / pertusicollis (Fai.) / R. Borovec det. 2015 [p/hw]’.

Additional material examined. 1 spec., Algeria, Edough ( MNHN); 33 spec. Algeria, Constantine ( MNHN); 9 spec., Algeria, Bône, Hénon ( MNHN).

Remarks. The lectotype of Sciaphilus pertusicollis is 3.41 mm long. The lectotype of Sciaphilus nasutus is 4.00 mm long. The lectotype of Sciaphilus ruficornis is 3.38 mm long. Chiloneus pertusicollis is a very characteristic species resembling species of the genus Omias by shape and size of body, with males distinctly more slender than females, blackish integument moderately densely covered by oval appressed scales without raised setae, rostrum in basal third distinctly tapered and in apical two thirds only weakly enlarged anteriad and small, but conspicuously vaulted and prominent eyes.