Hexachaetus lateralis maindroni Tian et Deuve, 2006, n. stat.

(Figures 2–4)

Hexachaetus maindroni Tian & Deuve, 2006: 149

Length: 19.0 mm; width: 8.0 mm. Habitus as in Fig. 2.

Diagnosis. Large sized, polish, glabrous and shiny species; head, pronotum, side margin of elytra, whole apical margin of abdominal ventrite VII, tibiae and tarsi of legs dark brown, underside, femora and coxae yellowish brown; elytral marking narrow, not anchoreaform; labial palpomere 3 glabrous, slightly shorter than palpomere 2; labial palpomere 2 bisetose on inner margin, and with two more shorter setae near apex; maxillary palpomere 3 longer than 4; the median lobe of aedeagus stout, dramatically constricted at apex in profile; lamella broadly and extraordinary dilated in lateral aspect (Figs. 3–4).

Remarks. Similar to H. lateralis lateralis not only on appearance, but also on genital structure. However, it is slightly larger than H. lateralis, elytra marking narrower at middle, extending only to intervals 2 (to intervals 3 in H. lateralis), and inner apical angle of elytra blunter than in H. lateralis lateralis .

Material. 1 male, the holotype, “ Borneo, Sarawak, Kuching ”, “ 16 Oct. 1894 ”, “ Hexachaetus maindroni n. sp. det. Tian & Deuve, 2004 ”, “ Hexachaetus laeviceps M.”(det. Maindron M.), “ Museum Paris ”, and “ Ex Coll. M. Maindron”, in MNHN.

Distribution. Malaysia (Fig. 20 b).