(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).