Tetraserica semipingjiangensis sp. n. Figures 33, 50

Type material examined.

Holotype: ♂ "N THAILAND III.1992, 3 km W Ban Rai 170 km NW Bankok 150 m NN lg. Malicky/ Zoologische Staatssammlung München” (ZSM).

Description.

Length of body: 9.6 mm; length of elytra: 7.1 mm; maximum width: 6.3 mm. Surface of labroclypeus and disc of frons glabrous. Smooth area anterior to eye twice as wide as long. Eyes small, ratio of diameter/interocular width: 0.5. Ratio of length of metepisternum/metacoxa: 1/1.72. Posterior margin of metafemur with blunt tooth. Metatibia short and wide, ratio width/length: 1/3.13; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 33 E–G . Habitus: Fig. 33H.

Female unknown.

Diagnosis.

Tetraserica semipingjiangensis sp. n. differs from T. pingjiangensis Liu et al., 2014 by the simple right paramere, which is not split in two lobes.

Etymology.

The species name (adjective in the nominative singular) is derived from the combined Latin words semi (half) and the species name pingjiangensis, with reference to the similarity to T. pingjiangensis .