Tetraserica changjiangensis, Liu, Wan-Gang, Fabrizi, Silvia, Bai, Ming, Yang, Xing-Ke & Ahrens, Dirk, 2014

Liu, Wan-Gang, Fabrizi, Silvia, Bai, Ming, Yang, Xing-Ke & Ahrens, Dirk, 2014, A taxonomic review on the species of Tetraserica Ahrens, 2004, of China (Coleoptera, Scarabaeidae, Sericini), ZooKeys 448, pp. 83-121 : 90-91

Taxon classification Animalia Coleoptera Scarabaeidae

Tetraserica changjiangensis sp. n.

Type material examined.

Holotype: ♂ "Bawangzhen, Changjiang, Hainan, 5-7.VI.2008, leg. Ba Yibin, Lang Juntong" (HBUM). Paratype: 1 ♂ "Mt. Jianfengling, Hainan, 10.VI.1965" (IZAS).

Description.

Body length: 8.4 mm, length of elytra: 6.5 mm, width: 5.4 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: 0.63. Antennal club 1.2 times as long as remaining antennomeres combined. Ratio of length of metepisternum/metacoxa: 1/1.67.

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: 1/2.74; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus. Fig. 2 K–M. Habitus: Fig. 2N.

Female unknown.

Variation.

Body length: 7.7-8.4 mm, length of elytra: 6.1-6.5 mm, width: 5.0-5.4 mm.

Diagnosis.

Tetraserica changjiangensis sp. n. differs from the similar Tetraserica fikaceki sp. n. by the shape of the parameres: the dorsal lobe of the right paramere (in lateral view) is extremely short (Fig. 2M), the left paramere is distinctly longer and curved externally at the apex (Fig. 2K, L).

Etymology.

The new species is named after its type locality, Changjiang.