Stomis facchinii Sciaky, 1998

Sciaky, Riccardo, 2024, Review of the Chinese Stomis, with description of nine new taxa and a new key (Carabidae: Pterostichini), Zootaxa 5523 (1), pp. 1-34 : 11-12

Stomis facchinii Sciaky, 1998

Loc. typ.: China, Western Sichuan, Mugezuo Lake (= Lake Xierenhai).

Described upon a long series of specimens collected in different localities of Western Sichuan. It has been collected again in several localities, all in the same area.

Description. Habitus as in Fig. 13 . The combination of characters allowing to distinguish this species are: length 7.2–9.8 mm; integuments dark reddish-brown with metallic glance, sometimes with very faint metallic green hue on elytra, rather dull; body rather convex; legs and antennae brownish, sometimes paler, rather short and robust; head broad, with mandibles nearly as long as the rest of the head; pronotum anteriorly broad, with lateral margins markedly constricted and very shortly sinuate towards the base; elytra rather narrow, parallel-sided, with striae rather shallow, slightly shallower towards the sides; shoulders angulose and with a small but evident tooth. Median lobe of aedeagus with apical portion almost as long as basal portion; in lateral view subsinuate before apex, in dorsal view constricted and short, and with a very small tooth on the left side ( Fig. 39 ). Ratios: El/Pl = 2.14; Ew/Pw = 1.30; El/Ew = 1.61.

Distribution. W Sichuan.

Material examined: China, Western Sichuan, Mugezuo Lake : holotype ♂ ( CS) ; 1 paratype with same data ( CS) ; W Sichuan, Mts. ca. 20 km NNW Sabdè 2000–3500 m: 1 PT ♀ ( CF) ; SW Sichuan, road Sabdé-Jiulong, pass 40 km N Jiulong, Picea forest , 3000 m: 2 PT MF ( CS, CF) ; W Sichuan, road Qianning-Dawu , pass 35 km NNW Qianning, 3900 m: 1 PT ♂ ( CS) ; W Sichuan, road Kangding-Xinduqiao , pass 16 km W Kangding, 4200 m: 4 PT ♂ ( CF, CS) ; W Sichuan, 30 km W Kangding , 5000 m: 1 PT ♂ ( CS) ; NW Sichuan, pass 20 km S Quagca , 4100 m: 14 PT ♂ ♀ ( CF, CS) ; NW Sichuan, road Zogqen-Quagca , 60 km NW Zogqen, 4000 m: 3 PT ♂ ♀ ( CF, CS) ; NW Sichuan, Maniganggo , 4000 m: 4 PT ♂ ♀ ( CF, CS) ; NW Sichuan, road Garzé-Barong , pass 25 km S Garzé, 3500– 4500 m: 6 PT ♂ ♀ ( CF, CS) ; NW Sichuan, road Sertar-Darcang , 20 km SSE Darcang, 4000 m: 3 PT ♂ ♀ ( CF, CS) ; NW Sichuan, road Sertar-Darcang , 20 km W Sertar, 4000 m: 3 PT ♂ ♀ ( CF, CS) ; NW Sichuan, Maniganggo , 4000 m: 4 ♂ ♀ ( CF, CS) ; NW Sichuan, road Sertar-Darcang , 20 km SSE Darcang, 4000 m: 3 ♂ ♀ ( CF, CS) ; NW Sichuan, road Sertar-Darcang , 20 km W Sertar, 4000 m: 3 MF ( CF, CS) ; NW Sichuan, pass 20 km S Quagca , 4100 m: 3 ♂ ♀ ( CF, CS) ; NW Sichuan, road Zogqen-Quagca , 60 km NW Zogqen, 4000 m: 1 ♂ ( CS) ; China, W-Sichuan (Ganzi Tibet. Aut. Pref. , Kangding Co.) Daxue Shan, Mu Ge Cuo upp. lake, 15 km NW Kangding, 3700 m, river bank, bank slope, 30°09’N / 101°52’E: 1 ♀ ( CW) ; China, W-Sichuan (Ganzi Tibet. Aut. Pref. , Kangding Co.) Daxue Shan, W Tsheto La Pass , 17 km W Kangding, 3700 m, brook valley, 30°04’N / 101°47’E: 2 ♂ 1 ♀ ( CW) ; Sichuan prov., Qian Shan pass N Jiulong, 4500–4550 m: 2 ♀ ( CW, CP) ; W Sichuan, 4300–4500 m, W Kangding, Zheduo Shan alpine region with Rhododendron : 1 ♀ ( CM) ; W Sichuan, pass N of Jiulong, J-Zhou Shan , 4400–4500 m, alpine region: 1 ♂ ( CM) ; NW Sichuan, pass 20 km S Quagca , 4100 m: 1 ♂ ( CM) .

Figures

FIGURES 13–16. Habitus of: (13) S. facchinii HT (7.9 mm); (14) S. farkaci PT from Yunnan, Hengduan mts., part Baima (9.1 mm); (15) S. gigas PT from Yunnan, Habashan (12.3 mm); (16) S. wrasei HT (12.1 mm).

FIGURES 39–42. Aedeagus in lateral and dorsal view of: (39) S. facchinii HT; (40) S. farkaci PT; (41) S. gigas PT from Yunnan, Zhongdian; (42) S. titanus HT.