Hexachaetus prodigus Tian & Deuve, 2006

Tian, Mingyi & Deuve, Thierry, 2016, Re-definition and review of the Oriental genus Hexachaetus Chaudoir, 1871 (Coleoptera: Carabidae: Orthogoniini), Zootaxa 4169 (3), pp. 540-554 : 551

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).

Figures

FIGURE 20. Distribution of Hexachaetus species (square: angulatus species group; round: lateralis species group; star: laevissimus species group; heart: vietnamensis species group; triangle: mulan species group; a. H. lateralis lateralis; b. H. lateralis maindroni; c. H. maculatus; d. H. kirschenhoferi n. sp.; e. H. brunki n. sp.; f. H. laevissimus; g. H. vietnamensis n. sp.; h. H. prodigus; i. H. mulan n. sp.)

FIGURES 9 – 11. Habitus of Hexachaetus species (9. H. vietnamensis n. sp.; 10. H. prodigus Tian & Deuve, 2006; 11. H. mulan n. sp. Scale bar: 5.0 mm)