Tetraserica sigulianshanica Liu, Fabrizi, Bai, Yang & Ahrens 2014

Body length: 7.6 mm, length of elytra: 5.9 mm, width: 4.8 mm. Surface of labroclypeus and disc of frons glabrous. Smooth area anterior to eye twice as wide as long. Eyes moderately large; ratio of diameter/interocular width: 0.6. Antennal club 1.2 times as long as remaining antennomeres combined. Ratio of length of metepisternum/metacoxa: 1/1.4. Metafemur dull, anterior margin acute, without submarginal serrated line; anterior row of setae-bearing punctures absent; posterior margin straight, without blunt tooth. Metatibia short and wide, ratio width/length: 1/3; basal group of dorsal spines of metatibia at first third of metatibial length. Aedeagus. Fig. 3A–C. Habitus: Fig. 3D. Female unknown.