Libotrechus, UENO, 1998

Lin, Wei & Tian, Mingyi, 2014, Supplemental Notes on the GenusLibotrechusUéno (Coleoptera: Carabidae: Trechinae), with Description of a New Species from Guangxi, Southern China, The Coleopterists Bulletin 68 (3), pp. 429-433 : 430

KEY TO THE SPECIES OF LIBOTRECHUS UÉNO

1. Body stouter; head with only the posterior supraorbital setae present; right mandible tridentate; pronotum with 2 pairs of lateral setae; hind pronotal angles obtuse; elytra with lateral margin distinctly serrate in basal 1/3; 3 rd elytral stria with 2 dorsal pores; scutellar stria present............... L. nishikawai

1′. Body more slender; head with only anterior supraorbital setae present; right mandible bidentate; pronotum with only the anterior pair of lateral setae, the posterior pair absent; hind pronotal angles nearly rectangular; elytra with lateral margins smooth, not serrate; 3 rd elytral stria with only 1 dorsal pore; scutellar stria absent ............. L. duanensis , new species