Aphanerostethus bifidus Kojima & Lewis sp. nov.

Figs 1 A – D, 3, 4 B – D, 10 A, 11 A, 14 A, B, 15 A, B

Specimens examined.

Holotype: Vietnam: • Lam Dong Province, Mount Lang Biang, 12°02'N, 108°26'E, elevation 1700 m, 18. II. 2011, H. Kojima, male deposited in TUA, JHLHY_DAR_092 . Paratypes: • Lam Dong Province, Mount Lang Biang, 12°02'N, 108°26'E, elevation 1700 m, 18. II. 2011, H. Kojima, (1, TUA; 1, OIST), JHLHY_DAR_101 (EGP 0160 C 09), JHLHY_DAR_102 ; • same locality, 26. II. 2013, H. Kojima, (1, TUA), JHLHY_DAR_103 (EGP 0160 C 10) .

Diagnosis.

Body length 2.7–2.9 mm. Cuticle covered in dark to pale brown scales, with distinct dark, V-shaped band across anterior part of elytra. Funicle with six articles. Prosternal cavity prominent and with steep lateral ridges. Procoxae slightly separated. Second and odd-numbered elytral intervals with erect scales. Erect elytral scales concentrated in bundle on first, third, and fifth interval along V-shaped band. Scutellum prominent. Femora with large ventral tooth at midpoint. Metaventrite with a distinct elevated transverse ridge separating the meta- and mesocoxae. Metatibial uncus bifid in male (Fig. 1 A – D). Aedeagus with distinctly long apodemes, and subquadrate in apical half (Fig. 15 A, B).

Distribution.

This species is currently only known from Mount Lang Biang, Vietnam.

Etymology.

The specific name bifidus is a Latin adjective in reference to the bifid metatibial uncus observed in males (Fig. 1 A – D).