Tetraserica soppongana, 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 : 63

Tetraserica soppongana sp. n. Figures 26, 53

Type material examined.

Holotype: ♂ "THAI 1-8.V.1993 SOPPONG PAI 1800 m Pacholátko & Dembický leg./ Coll. P. Pacholátko / 160 Sericini Asia spec." (CPPB). Paratype: 1 ♂ "THAI 28-31/5.1995 19.27N 98.20E SOPPONG 1500m Vít Kubáň leg./ Coll. P. Pacholátko / TS49/ 472 Sericini Asia spec." (ZFMK).

Description.

Length of body: 6.9 mm; length of elytra: 5 mm; maximum width: 4 mm. Body yellowish brown, head dark, antenna yellow. 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: 0.71. Ratio of length of metepisternum/metacoxa: 1/1.55. Metatibia moderately long and wide, ratio width/length: 1/3.4; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 26 E–H. Habitus: Fig. 26I.

Female unknown.

Variation.

No significant size variation between types.

Diagnosis.

Tetraserica soppongana sp. n. differs from all other Tetraserica species in having a long median phallobasal lamina, the right paramere composed of two lobes and having no brush of spines at the base of the right paramere, by the left paramere being composed of two lobes, the right side of phallobase strongly produced, and the dorsal lobe of left paramere as long as ventral one.

Etymology.

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