Ten new species of cavernicolous Tribasodites from China and Thailand, and a list of East Asian cave-inhabiting Pselaphinae (Coleoptera: Staphylinidae) Author Yin, Zi-Wei Department of Biology, College of Life and Environmental Sciences, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, P. R. China Author Nomura, Shûhei Department of Zoology, National Museum of Nature and Science, 4 - 1 - 1, Amakubo, Tsukuba-shi, Ibaraki, 305 - 0005 Japan Author Li, Li-Zhen Department of Biology, College of Life and Environmental Sciences, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, P. R. China & Corresponding author; e-mail: pselaphinae @ gmail. com text Acta Entomologica Musei Nationalis Pragae 2015 2015-06-01 55 1 105 127 journal article 10.5281/zenodo.5319032 0374-1036 5319032 32572CA2-D2CB-4A01-B252-CCECB5320114 Tribasodites kawadai sp. nov. ( Figs 8 , 12P–R, 13A) Type locality. China , Guangxi , Leye Xian, Bagao, Tiankeng Dong. Type material. HOLOTYPE : J, ‘ Tiankeng Dong (cave), Bagao , Leye Xian , [NW-Guangxi, CHINA ] / {locality repeated in Chinese character} 12-13.ix.2004 , A. Kawada’ (NSMT) . PARATYPE : 1 ♀ , same label as holotype (NSMT). Diagnosis. Male : vertex simple, lacking modification; antennomeres VIII–XI modified; each eye composed of about 15 facets; pronotum lacking lateral spines; metaventrite slightly raised above metacoxae to form humps, with short row of dense setae on each hump; aedeagus with apical portion of the median lobe split to two parts, dorsal part as long as ventral part. Female : Each eye with about 8 facets; may be identified by the association with male. Description. Male . Body ( Fig. 8A ) reddish brown, mouth parts, antennae and tarsi paler; BL 2.96 mm . HL 0.59 mm , HW 0.59 mm ; median longitudinal carina vague, extending from base to level of eyes; each eye composed of about 15 facets; antennomeres VIII–IX modified ( Fig. 8B ). Pronotum slightly longer than wide, PL 0.67 mm , PW 0.64 mm ; lacking discal and lateral spines. Elytra slightly wider than long, EL 0.86 mm , EW 0.92 mm ; discal striae extending to more than half elytral length. Metaventrite ( Fig. 8C ) slightly raised above metacoxae, with pair of short rows of dense setae; metacoxae and metatrochanters simple. Abdomen narrower than elytra, AL 0.84 mm , AW 0.94 mm . Aedeagus ( Figs 8D, E ) asymmetric, length 0.81 mm . Female . Similar to male in general; each eye with about 8 facets; antennae and metaventrite simple. Tergite VIII (Fig. 12P) and sternite VIII (Fig. 12Q) transverse; width of genital complex excluding lateral arms (Fig. 12R) 0.17 mm . Measurements: BL 2.99 mm ; HL 0.64 mm , HW 0.60 mm , PL 0.67 mm , PW 0.62 mm , EL 0.82 mm , EW 0.92 mm , AL 0.86 mm , AW 0.86 mm . Etymology. The new species is named after A. Kawada, collector of the holotype . Distribution. South China : Guangxi ( Fig. 13A ).