Tetraserica doisuthepensis, 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 : 21

Tetraserica doisuthepensis sp. n. Figures 3, 48

Type material examined.

Holotype: ♂ "Thai 24-29-iv.1993 Doi Suthep Pacholátko & Dembický leg./ coll. P. Pacholátko / 141 Sericini Asia spec." (CPPB). Paratype: 1 ♂ "Laos, La Oudomxay 16.6.2005, ex coll. Sabatinelli" (ZFMK).

Description.

Length of body: 10.4 mm; length of elytra: 7.6 mm; maximum width: 6.6 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: 1/1.63. Posterior margin of metafemur with sharp hook. Metatibia moderately long and wide, ratio width/length: 1/4.14; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 3 I–K. Habitus: Fig. 3L.

Female unknown.

Variation.

Length of body: 10.1-10.4 mm; length of elytra: 7.4-7.6 mm; maximum width: 5.5-6.6 mm.

Diagnosis.

Tetraserica doisuthepensis sp. n. differs from T. liangheensis Liu et al., 2014 by the dorsal lobe of right paramere being weakly curved, barely exceeding the ventral lobe of right paramere, and in having no additional hook at the apex. The new species differs from T. sculptilis by the stouter left paramere having a bluntly angulate dorsal margin.

Etymology.

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