Stomis titanus 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 : 14

Stomis titanus Sciaky, 1998

Loc. typ.: China, NW Yunnan /SW Sichuan, road Xiangcheng-Zhongdian, pass 35 km S Xiangcheng , 15 km N Wengshui.

Described upon four specimens. As far as I know it has never been collected again.

Description. Habitus as in Fig. 17 . The combination of characters allowing to distinguish this species are: length 12.1–13.4 mm; integuments dark reddish brown, rather dull; body rather depressed; femora and tibiae blackish, tarsi and antennae reddish, very long and slender; head narrow, with mandibles distinctly longer than the rest of the head; pronotum anteriorly broad, with lateral margins evidently constricted and with long sinuation towards the base; elytra very narrow, oval, with striae rather shallow and tending to disappear towards the sides; shoulders very constricted and with a small but evident tooth. Median lobe of aedeagus with apical portion much longer than 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. 42 ). Ratios: El/Pl = 2.60; Ew/Pw = 1.50; El/Ew = 1.56.

Distribution. NW Yunnan /SW Sichuan area.

Material examined: China, NW Yunnan /SW Sichuan, road Xiangcheng-Zhongdian , pass 35 km S Xiangcheng, 15 km N Wengshui: Holotype ♂ ( CS).

Figures

FIGURES 17–20. Habitus of: 17, S. titanus HT (11.9 mm); 18, S. davidi HT (11.3 mm); 19, S. robustus HT (11.8 mm); (20) S. schoenmanni from Yunnan, Ailao Shan (11.2 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.