Tribasodites liboensis, Yin & Nomura & Li, 2015

Yin, Zi-Wei, Nomura, Shûhei & Li, Li-Zhen, 2015, Ten new species of cavernicolous Tribasodites from China and Thailand, and a list of East Asian cave-inhabiting Pselaphinae (Coleoptera: Staphylinidae), Acta Entomologica Musei Nationalis Pragae 55 (1), pp. 105-127 : 112

Tribasodites liboensis sp. nov.

( Figs 4 , 13A )

Type locality. China, Guizhou, Libo Xian, Yongkang Xiang, Bimang Dong.

Type material. HOLOTYPE: J, ‘ Bimang Dong Cave (730 m), Yongkang Xiang , Libo Xian, [Guizhou, CHINA] / {locality repeated in Chinese character} 27.v.2002, T. Kishimoto lg.’ (NSMT).

Diagnosis. Male: vertex simple, lacking modification; antennomeres VIII–XI modified; each eye composed of about 45 facets; pronotum with small lateral spines; metaventrite raised above metacoxae to form ridges, with a thin row of setae along each ridge; aedeagus with apical portion of the median lobe split to two parts, dorsal part slightly shorter than ventral part.

Description. Male. Body ( Fig. 4A ) reddish brown, mouth parts, antennae and tarsi paler; BL 2.96 mm. HL 0.61 mm, HW 0.63 mm; median longitudinal carina extending from base to level of eyes; each eye composed of about 45 facets; antennomeres VIII–IX modified ( Fig. 4B ). Pronotum as long as wide, PL 0.64 mm, PW 0.64 mm; with distinct discal and lateral spines. Elytra slightly wider than long, EL 0.90 mm, EW 0.96 mm; discal striae extending to half elytral length. Metaventrite ( Fig. 4C ) raised above metacoxae, with pair of straight rows of dense setae; metacoxae setose and protuberant at ventral margin, metatrochanters simple. Abdomen narrower than elytra, AL 0.81 mm, AW 0.87 mm. Aedeagus ( Figs 4D, E ) asymmetric, length 0.56 mm.

Female. Unknown.

Etymology. The new species is named after its type locality, Libo Xian; adjective.

Distribution. Southwest China: Guizhou ( Fig. 13A ).

Figures

Fig. 4. Tribasodites liboensis sp. nov., male.A – habitus. B – left antenna.C – meso- and metaventrite. D – aedeagus, in lateral view. E – aedeagus, in ventral view. Scales: A = 1.0 mm; C = 0.5 mm; B, D, E = 0.2 mm.

Fig. 13. Distribution of the Tribasodites bedosae species-group in China (A) and Thailand (B).