Tetraserica pailinensis, 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 : 70-71

Tetraserica pailinensis sp. n. Figures 31, 50

Type material examined.

Holotype: ♂ "X-DA4506 labcode: VD028 Cambodia Pailin 200 m, 11-16.v.2009, S. Murzin leg. Tetraserica spCA_V4/ X-DA4506/ sp-CA-V4" (ZFMK). Paratype: 1 ♂ "835104/ 835104 Cambodia Pailin 270 m 6-16.v.2008 S. Murzin leg. Tetraserica sp CA2sp1" (ZFMK).

Description.

Length of body: 8.5 mm; length of elytra: 6.5 mm; maximum width: 5 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: 1/1.88. Metatibia moderately long and wide, ratio width/length: 1/3.46; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 31 A–C. Habitus: Fig. 31D.

Female unknown.

Variation.

Length of body: 8.0-8.5 mm; length of elytra: 5.9-6.5 mm; maximum width: 5.0-5.4 mm.

Diagnosis.

Tetraserica pailinensis sp. n. is similar to T. loeiensis sp. n. in shape of aedeagus; T. pailinensis sp. n. differs from the latter by the dorsal lobe of the left paramere being twice as long as the ventral one.

Etymology.

The new species is named after the type locality, Pailin (adjective in the nominative singular).