Tetraserica pseudouncinata, 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 : 16

Tetraserica pseudouncinata sp. n. Figures 2, 50

Type material examined.

Holotype: ♂ "X-DA4693 labcode: VD086 China, Guangxi A.R., Schiwandashan National Forest Park (forested river valley; at light), 290-360 m, 21°54.4'N, 107°54.2'E, 5-9.iv.2013, M. Fikáček, J. Hájek, J. Růžička leg. Tetraserica spCH_V47/ sp-CH-V47/ X-DA4693" (ZFMK).

Description.

Length of body: 9.3 mm; length of elytra: 6.9 mm; maximum width: 5.9 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: 0.58. Ratio of length of metepisternum/metacoxa: 1/1.7. Posterior margin of metafemur with blunt tooth. Metatibia moderately long and wide, ratio width/length: 1/3.31; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 2 A–D. Habitus: Fig. 2E.

Female unknown.

Diagnosis.

Tetraserica pseudouncinata sp. n. differs from T. neouncinata by the left paramere being two thirds as wide as length of the antennal club (rather than one quarter as wide as in T. neouncinata ).

Etymology.

The species name (adjective in the nominative singular) is derived from the combined Greek word pseudo- (false) and Latin word uncinatus, with reference to the uncinated shape of the right paramere.