Tetraserica sapana, 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 : 30

Tetraserica sapana sp. n. Figures 9, 51

Type material examined.

Holotype: ♂ "Vietnam bor. Pr. Hoang lien son SA PA V.1990, J Picka lgt./ 908 Sericini Asia spec." (NHMB).

Description.

Length of body: 8.8 mm; length of elytra: 7.1 mm; maximum width: 5.5 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: 0.6. Ratio of length of metepisternum/metacoxa: 1/1.31. Metatibia moderately long and wide, ratio width/length: 1/4.91; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 9 A–D. Habitus: 9E.

Female unknown.

Diagnosis.

Tetraserica sapana sp. n. is similar to T. pluriuncinata sp. n. in shape of male genitalia but differs from the latter by the shorter and simpler left paramere and the presence of trichome-like spines on the dorsal lobe of the right paramere.

Etymology.

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