Tetraserica olegi, 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 : 39

Tetraserica olegi sp. n. Figures 13, 50

Type material examined.

Holotype: ♂ "N. Vietnam: 40 km NE Thainguyen, 300 m, 14.V.1963, leg. O Kabakov" (ZIN).

Description.

Length of body: 6.8 mm; length of elytra: 5.6 mm; maximum width: 0.1 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: 0.42. Ratio of length of metepisternum/metacoxa: 1/1.56. Metatibia short and wide, ratio width/length: 1/3.14; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 13 E–G. Habitus: Fig. 13H.

Female unknown.

Diagnosis.

The new species is very similar to the Chinese species T. longzhouensis Liu et al., 2014, but differs by the wider apical lobe of its left paramere.

Etymology.

The new species is named after Oleg N Kabakov (1928-2009).