Tetraserica allochangshouensis, Fabrizi, Silvia, Dalstein, Vivian & Ahrens, Dirk, 2019

Fabrizi, Silvia, Dalstein, Vivian & Ahrens, Dirk, 2019, A monograph on the genus Tetraserica from the Indochinese region (Coleoptera, Scarabaeidae, Sericini), ZooKeys 837, pp. 1-155 : 46

Tetraserica allochangshouensis sp. n. Figures 17, 46

Type material examined.

Holotype: ♂ "Tonkin Montes Mauson April, Mai 2-3000' H. Frustorfer/ 1005 Asia Sericini spec." (MNHN). Paratype: 1 ♂ "Tonkin Montes Mauson April, Mai 2-3000' H. Frustorfer" (ZFMK).

Description.

Length of body: 8.8 mm; length of elytra: 6.6 mm; maximum width: 5.6 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: 0.56. Ratio of length of metepisternum/metacoxa: 1/1.5. Metatibia short and wide, ratio width/length: 1/3.27; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 17 F–H. Habitus: Fig. 17I.

Female unknown.

Diagnosis.

The new species is close to the Chinese species T. changshouensis Liu et al., 2014, but differs by the narrower ventroapical lobe of right paramere and the longer ventral lobe of left paramere.

Variation.

Length of body: 8.2-8.8 mm; length of elytra: 6.5-6.6 mm; maximum width: 5.0-5.6 mm.

Etymology.

The species name (adjective in the nominative singular) is derived from the combined Greek prefix allo- (other) and the species name changshouensis , with reference to the similarity to T. changshouensis .