Tetraserica khaosoidaoensis, 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 : 72-73

Tetraserica khaosoidaoensis sp. n. Figures 32, 48

Type material examined.

Holotype: ♂ "E Thailand, 5.-13.5. Chanthaburi Dist. Khao Soi Dao, 1998, J. Horák leg./ coll. P Pacholátko / 129 Sericini Asia spec." (CPPB). Paratype: 1 ♂ "E Thailand, 5.-13.5. Chanthaburi Dist. Khao Soi Dao, 1998, M Knížek lgt./ coll. P Pacholátko” (ZFMK).

Description.

Length of body: 7.4 mm; length of elytra: 5.6 mm; maximum width: 4.6 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: 0.54. Ratio of length of metepisternum/metacoxa: 1/1.68. Metatibia short and wide, ratio width/length: 1/3; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 32 A–C. Habitus: Fig. 32D.

Female unknown.

Variation.

Length of body: 7.4-7.8 mm; length of elytra: 5.5-5.6 mm; maximum width: 4.6-4.8 mm.

Diagnosis.

Tetraserica khaosoidaoensis sp. n. is very similar to T. nussi sp. n. in shape of the aedeagus; but differs by the distinctly shorter right paramere as well as the only slightly bent right paramere.

Etymology.

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