Orthogonius duboisi Tian & Deuve, 2006

Tian, Mingyi & Deuve, Thierry, 2016, Definition of the jianfengling species group of the ground beetle genus Orthogonius MacLeay (Coleoptera, Carabidae, Orthogoniini), ZooKeys 615, pp. 95-117 : 109

Taxon classification Animalia Coleoptera Carabidae

Orthogonius duboisi Tian & Deuve, 2006 Figs 3f, 11, 21, 38-39

Orthogonius duboisi Tian & Deuve, 2006: 124

Length.

19.0 mm; width: 7.0 mm. Habitus as in Fig. 11.

Description.

Dark brown, shiny, glabrous and smooth, but faint striate on head and pronotum; microsculptural engraved meshes isodiametric. Head slightly longer than wide, HL/HW = 1.10, eyes moderately sized, prominent, labrum slightly emarginate at frontal margin, clypeus bisetose; antennae backwardly exceeding elytral humeri. Pronotum transverse, PW/PL = 1.77, widest a little before middle, lateral expanded margin quite wide, slightly reflexed. Elytra elongate-ovate, rather flat, base well-bordered, parallel-sided medially, apex moderately sinuate, outer angle indistinct, inner angle large and obtuse, not denticulate (Fig. 21); striae deep, intervals slightly convex, subequal in width at middle; the 3rd interval with three setiferous pores. Hind tibial spurs quite short, but sharp; the 4th tarsomere shorter than the 3rd, deeply emarginate at apex, with lobes nearly half as long as joint. The prosternal process bordered at apex. Male genitalia (Figs 38-39): Short and stout, apex broad, the apical lamella very short and broad.

Female: Unknown.

Remarks.

It is similar to Orthogonius freyi , but its inner apical angle of elytra is obtuse and not denticulate at tip (versus in Orthogonius freyi ), and the male aedeagus is stouter.

Material examined.

1 male, the holotype, "CHINE-Yunnan, Tongbiguan, 24°36'N, 97°35'E, 1180 m", "14. VI. 2001, Deuve, Mantilleri, Rougerie & Tian leg.", in SCAU.

Distribution.

China (Yunnan).