Harpalus viridanus angustibasis, Kataev, Boris M. & Liang, Hongbin, 2007

Kataev, Boris M. & Liang, Hongbin, 2007, Contribution to the knowledge of the genus Harpalus in China, with description of new taxa (Coleoptera: Carabidae: Harpalini), Zootaxa 1604, pp. 1-20 : 7-8

Harpalus viridanus angustibasis ssp. n.

( Figs 7–8 , 11–13 )

Type material. Holotype: ɗ, China, Garzê Co., 3650 m, 11.VII.1983, Chen Yuanqing leg. ( IZB).

Paratypes: China. SICHUAN: 5 ɗ, 2 Ψ, same data as holotype ( IZB); 5 ɗ, 2 Ψ, Garzê Co., 3400 m, 29.VI.1983, Zhang Xuezhong (4 specimens), Wang Shuyong (2 specimens) and Chai Huaicheng (1 specimen) leg. ( IZB, ZISP); 1 ɗ, same but 3300 m, 17.VI.1983, Chai Haicheng leg. ( IZB); 1 Ψ, NW Sichuan, Maniganggo western environs, 31°50'N 99°07' E, cca 4100 m, grassland, 17.VII.1998, J. Turna leg. (cITO). QING- HAI: 1 ɗ, labelled "Amdo [Njam-tzu environs, Dy Qu, source of Yangtze River], 10–18.VI.1884, Przevalsky" [= Zhi Qu (= Tongtian He), area SE of Qumarleb], " Harpalus Przewalskyi T. Tsch. , n. sp., 1894, Typ!", and " v. viridanus Motsch., Tschitscherin det." [erroneously designated as lectotype of H. przewalskyi by Kataev in 1989] ( ZISP); 1 ɗ, 2 Ψ, Yushu Co., 3750 m, 9.VI.1964, Wang Shuyong leg. ( IZB). TIBET: 3 ɗ, Markam Co., 4030 m, 12.VIII.1982, Zhang Xuezhong leg. ( IZB); 1 ɗ, same but 3700 m, 11.IX.1981, Wang Shuyong leg. ( IZB); 2 ɗ, same but 30.VII.1984, Jiang Ba leg. ( IZB); 1 Ψ, Qamdo Co., 3200 m, 22.VI.1976, no collector ( IZB); 1 ɗ, E Tibet, "Lao Shan" pass, road Markam–Zogang, 10 km W Markam, 4300 m, 29°42'N 98°32'E, alpine meadow, 27–28.VI.1997, J. Turna leg. (cSCI).

Description. Comparatively large or medium-sized (body length 8.8–10.0 mm), often with bright green, blue or coppery metallic lustre on dorsum. Head relatively large (WHmax/WPmax = 0.63–0.71 in male and 0.65–0.67 in female; WHmin/WPmax = 0.56–0.62 in male and 0.59–0.60 in female). Pronotum ( Figs 7–8 ) with comparatively narrow base (WPmax/WPmin = 1.07–1.15) and with sides more or less strongly converging posteriad in basal half. Pronotal basal angles obtuse, narrowly rounded at apices. Elytra with superficial striae and flat intervals. Dorsal microsculpture visible throughout on head, pronotum and elytra, consisting of distinct, more or less isodiametric meshes. Median lobe of aedeagus ( Figs 11–13 ) relatively large (LB/LML = 3.16–3.46); terminal lamella ( Fig. 13 ) comparatively long, with sides more or less notably sinuate before apex.

Distribution. Occurs in southern Qinghai, eastern Tibet and northwestern Sichuan.

Etymology. The subspecies epithet refers to the shape of pronotum of this taxon.

Remarks. Rather distinct form readily recognized by the pronotum clearly narrowed basad and the elytra with superficial striae and absolutely flat intervals even apically.

Figures

FIGURES 7 – 10. Harapalus viridanus, pronotum. 7 – 8, H. v. angustibasis ssp. n. (7, Qinghai, Yushu Co., paratype; 8, Sichuan, Garzê Co., holotype); 9, H. v. staudingerianus (Minxian, paratype); 10, H. v. viridanus (Russia, Irkutsk env.). Scale = 1.0 mm.

FIGURES 11 – 16. Harpalus viridanus, median lobe of aedeagus (13 – 14, terminal lamella). 11 – 13, H. v. angustibasis ssp. n. (Qinghai, Yushu Co., paratype); 14 – 16, H. v. staudingerianus (Minxian, paratype). 11, 13 – 16, dorsal aspect; 12, 16, lateral aspect. Scales: A = 0.5 mm (Figs 13 – 14), B = 1.0 mm (Figs 11 – 12, 15 – 16).