Tetraserica tianchiensis, 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 : 96-97

Taxon classification Animalia Coleoptera Scarabaeidae

Tetraserica tianchiensis sp. n.

Type material examined.

Holotype: ♂ "Tianchi, Jianfeng, Hainan, 13.IV.1980, 900m, leg. Wang Shuyong" (IZAS). Paratype: 1 ♂ "Tianchi, Jianfeng, Hainan, 18.IV.1980, 750m, leg. Wang Shuyong" (ZFMK).

Description.

Body length: 9.1 mm, length of elytra: 6.9 mm, width: 5.7 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 1.3 times as long as remaining antennomeres combined. Ratio of length of metepisternum/metacoxa: 1/1.56. 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: 1/3.24; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus. Fig. 5 I–K. Habitus: Fig. 5L.

Female unknown.

Variation.

Body length: 9.1-10.5 mm, length of elytra: 6.9-8.4 mm, width: 5.7-6.1 mm.

Diagnosis.

Tetraserica tianchiensis sp. n. differs from Tetraserica jinghongensis by dorsal lobe of the right paramere being wide, with a sickle-shaped, large apical hook (Fig. 5J).

Etymology.

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