Chileanthicus pulcher, Kejval, 2009

Kejval, Zbyněk, 2009, Taxonomic revision of the genus Chileanthicus Werner (Coleoptera: Anthicidae) 2180, Zootaxa 2180 (1), pp. 1-82 : 67-69

publication ID	https://doi.org/ 10.11646/zootaxa.2180.1.1
DOI	https://doi.org/10.5281/zenodo.5321652
persistent identifier	https://treatment.plazi.org/id/3949251E-FFEF-7723-FF63-D8B8FD2BFC3C
treatment provided by	Felipe
scientific name	Chileanthicus pulcher
status	sp. nov.

Treatment

Chileanthicus pulcher sp. nov.

( Figs 185, 186 View FIGURES 183–191 , 228 View FIGURES 220–231 , 237 View FIGURES 232–241 )

Type locality. Australia, South Australia, 79 km NNW of Renmark , 33°31'S 140°24'E GoogleMaps .

Description (female, holotype). Body unicoloured brown black; antennae rufous brown, legs and palpi paler, yellowish brown.

Head 1.2 times as long as wide, nearly evenly rounded posteriorly in dorsal view; tempora moderately narrowing posteriad, posterior temporal angles indistinct. Eyes small, moderately convex. Dorsal surface nearly matte, very densely and finely punctured ( Fig. 185 View FIGURES 183–191 ); punctation nearly uniform, coarser punctures barely discernible; punctures mostly evenly spaced, slightly sparser medially in anterior half, and with small glossy facet on/behind fronto-clypeal suture medially. Setation very short, fine, appressed, with a few, quite inconspicuous erect setae. Antennae only moderately enlarged in apical third; antennomere III 2.1 times as long as wide, as long as IV; antennomere X 1.4 times, XI 1.9 times as long as wide.

Pronotum 1.3 times as long as wide, moderately narrower than head including eyes, unevenly rounded anteriorly in dorsal view. Pronotal disc less distinct, with slight indication of median longitudinal impression in anterior half, dorso-lateral sides rounded (not angled), lateral outlines straightly narrowing towards base in dorsal view. Dorsal surface nearly matte, very densely, finely and evenly punctured; punctation and setation as on head.

Elytra 1.4 times as long as wide, narrowed and truncate apically. Surface nearly matte, densely punctured and setose ( Fig. 185 View FIGURES 183–191 ); punctation homogeneous, finer than on head. Setation with appressed setae moderately longer than on head, mostly brownish and evenly directed posteriad, additionally with whitish setae forming two, paired transverse bands ( Fig. 185 View FIGURES 183–191 ), pointing laterad and partly distinctly swirled ( Figs 185 View FIGURES 183–191 , 237 View FIGURES 232–241 ); erect setae very short, sparsely scattered, quite inconspicuous.

Metafemora unidentate ( Fig. 186 View FIGURES 183–191 ); subapical process narrowed and pointed apically, obliquely projecting, facing inner side of tibia. Setation uniformly short and fine.

Both sternite and tergite VII simple.

Body length (♀). 3.5–3.7 mm (holotype 3.5 mm).

Type material. Holotype: ♀, 33.31S 140.24E S.A. 79km NNW Renmark 6-20 Sept 1995 Casuarina woodland Pitfall trap A.Lambie // CALPERUM STATION BOOKMARK BIOSPHERE RESERVE INVERTEBRATE SURVEY ( ANIC) GoogleMaps . Paratype: ♀, S.AUST 6km N Wawirra 32°21'30"S 140°05'48"E Karolta Stn. pitfalls 26-31 Aug. 1996 Nth Olary Plains Survey OLA 10501 // S. Aust. Museum specimen [p; orange label] ( SAMA) GoogleMaps .

Differential diagnosis. C. pulcher sp. nov. differs from most Australian species by the combination of the unidentate metafemora, rather rounded (not sharp) lateral margins of the pronotal disc, and dark unicolourous, simply and finely punctured elytra. Within the group of species showing these characters (or similar conditions), it can be recognized by the subtruncate elytra, the nearly evenly rounded head base, the very dense and fine body punctation (surface nearly matt), by the silvery setose bands of the elytra with the setae for the great part transversely directed (pointing laterad), and by the rather contrasting yellowish brown, unicolourous legs ( Figs 185 View FIGURES 183–191 , 228 View FIGURES 220–231 , 237 View FIGURES 232–241 ).

Etymology. From Latin pulcher (pretty, neat), named in reference to the graceful external appearance.

Distribution. Australia (South Australia).