Tetraserica cucphongensis, 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 : 22

Tetraserica cucphongensis sp. n. Figures 4, 46

Type material examined.

Holotype: ♂ "N-Vietnam, Cuc Phuong Nat. Park. 21-22.v.1996 Pacholátko & Dembický leg./ coll. P. Pacholátko / 937 Sericini Asia spec." (CPPB).

Description.

Length of body: 7.3 mm; length of elytra: 5.5 mm; maximum width: 4.9 mm. Dorsal surface blackish, ventral surface reddish brown. 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: 0.48. Ratio of length of metepisternum/metacoxa: 1/1.67. Metatibia moderately long and wide, ratio width/length: 1/3.33; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 4 I–L. Habitus: Fig. 4M.

Female unknown.

Diagnosis.

This species differs from all other Tetraserica species in having a simple left paramere, by the strongly asymmetric phallobase (dorsal view), the very short median lamina of phallobase, and by having the right paramere more or less straight (ventral view).

Etymology.

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