Hexachaetus mulan Tian & Deuve, 2016, n. sp.
Creators: name: Tian, Mingyi
name: Deuve, Thierry
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Hexachaetus
Hexachaetus mulan

description: Hexachaetus mulan n. sp.
(Figure 11)
Material. Holotype male, “ Malaysia W., Perak, 30 km SE of Ipoh, 900 m, Cameron Highland, Ringlet, 26- 31.iii.2000, P. Cechovsky leg.”, in CAD, Prague; paratypes: 1 female, “ Malaysia W., Kelantan Road between Kampong Raja & Gua Musang, 1400–1700 m (Landang Pandrak), 1–28.iv.2006, Cechovsky Petr leg.”, and with an identify label “ Hexachaetus sp. n.? det. Dr. A. Dostel, 2012”; 1 female, “ Malaysia W., Pahang 30 km SE of Ipoh, 1500 m, Banjaran Titi Wangsa, Tanah Rata, 14–15.iii. 2002, P. Cechovsky leg.”, in CAD and MNHN respectively.
Diagnosis. Head dark brown, pronotum and elytra pale yellow; frontal impressions wide and very deep, strongly sinuate, ending before posterior margin of eyes, frons deeply furrowed medially, as long as frontal impressions, but nearly straight; clypeus deeply concave medially; elytra with apical margin not obliquely truncate, outer angle round, inner angles obtuse though almost rectangular.
Length: 16.5–18.0 mm; width: 6.5–7.0 mm; Habitus as in Fig. 11.
Description. Pale yellowish brown on pronotum, elytra and underside surface, head including outer margins of mandibles dark brown except for mouthparts, clypeus and antennae; surface moderately strongly shiny, smooth, glabrous and polish; impunctate, but elytral intervals with tiny, irregularly located punctures, pronotum with puncture-like impressions on and near marginal lateral expanded areas and at central portion of base and front; microsculptural engraved meshes unclear.
Head stout and broad, slightly longer than wide, HL/HW=1.12; eyes rather small but strongly prominent; frons less convex than vertex; clypeus bisetose; labrum 6-setose, frontal margin almost straight; ligula wide, quadrisetose at apex; palps moderately developed; mentum without median tooth, mentum and submentum each with pair of long setae. Antennae short, extended to about basal 1/5 of elytra; pubescent from basal 1/3 of antennomere 4; antennomere 3 as long as 4 and 5 respectively.
Pronotum transverse, PW/HW=1.44–1.47; widest at about middle, PW/PL=1.71–1.72, disc less convex than other species, fore angles broadly round off, and hind angles more or less angular though obtuse; base beaded on median portion, front unbeaded, lateral expanded margins not well-defined, narrow, hardly reflexed; fore and hind transverse impressions shallow but distinct, basal foveae small, median line distinct.
Elytra elongate-ovate, EL/EW=1.44–1.50; moderately convex, base completely bordered, shoulders broadly square; more or less parallel-sided at middle, widest at about middle; striae deep, intervals convex, and subequal in width at middle; apex gently and obliquely truncate, inner angle not denticulate; anterior dorsal pore of interval 3 at about 1/8 of elytra from base, posterior pores at about 1/7 of elytra from apex.
Legs moderate; middle and hind coxae smooth and glabrous in median portion; hind femora moderately expanded, with 2 setae posteriorly; fore tibiae distinctly dilated at apical portions, apical outer angle sharply angular though not protruding, apical margin sinuate, outer margin distinctly serrate; hind tibiae slender, hardly dilated at apex, apical spurs long and sword-like; fore tarsi as stout as middle ones, slightly stouter than hind tarsi; hind tarsomeres 1 distinctly longer than 2, and hind tarsomeres 3 as long as 4 which is deeply and asymmetrically bilobed (with the outer lobe more developed); fore and middle tarsal claws strongly pectinate, hind claws moderately pectinate.
Etymology. This peculiar species is named after Hua Mulan, a beautiful and valorous girl in Chinese legend, referring to the beautiful species in which all of the type series are females.
Distribution. Malaysia (Fig. 20 i).
description: Published as part of Tian, Mingyi & Deuve, Thierry, 2016, Re-definition and review of the Oriental genus Hexachaetus Chaudoir, 1871 (Coleoptera: Carabidae: Orthogoniini), pp. 540-554 in Zootaxa 4169 (3) on page 553, DOI: 10.11646/zootaxa.4169.3.7, http://zenodo.org/record/258027