Re-definition and review of the Oriental genus Hexachaetus Chaudoir, 1871 (Coleoptera: Carabidae: Orthogoniini) Author Tian, Mingyi Author Deuve, Thierry text Zootaxa 2016 4169 3 540 554 journal article 10.11646/zootaxa.4169.3.7 faeafa7a-a105-4443-bbc3-2bea598d8cd5 1175-5326 258027 8A1FB454-AC73-4D54-A5CB-D12D6CD82AC6 Hexachaetus prodigus Tian & Deuve, 2006 ( Figure 10 ) Tian & Deuve, 2006 : 150 Length: 16.0 mm; width: 6.5 mm . Habitus as in Fig. 10 . Diagnosis. Head and mandibles black, disc of pronotum, underside of head dark brown, other parts of the body red brown; glabrous species, strongly shiny; microsculptural engraved meshes indistinct on head and pronotum, obscurely isodiametric on elytra; head stout, as long as wide, labrum straight at front; ligula short and wide, 6- setose at apex, with median two longer than other; pronotum transverse, PW/PL=1.60, widest at about middle; lateral expanded margin narrow, not reflexed; elytra elongate-ovate, EL/EW=1.46, base well-bordered, parallelsided, apical margin gently and obliquely truncated, denticulate at the tip; fore tibia stout, with outer angle remarkably rectangular; middle and hind coxae glabrous in median portion, hind tarsomeres 1 longer than 2, while 3 as long as 4. Male: Unknown. Material examined. 1 female , the holotype , “ Dalat , Annam , III-IV, 1924” and “R. I. SC. Nat. Belg., I. G. 16.500”, in IRSNB ; 1 female , “ Coll. I.R.Sc.N.B / Vietnam : Dong Nai Biosphere, 11°18 N, 107°06 E / 25. VI. 6. VII. 2012 , nigh collecting, leg. J Constant & J. Bresseel / I. G.: 32.161”, in IRSNB . Distribution. Vietnam ( Fig. 20 h).