Tetraserica lucai, 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 : 97-98

Tetraserica lucai sp. n. Figures 42, 49

Type material examined.

Holotype: ♂ "S Vietnam, 14.10N 108.30E 40 km NW of An Khe Buon Luoi, 620-750 m 28.3-12.4.1995 Pacholátko & Dembický leg./ coll. P. Pacholátko / 237 Sericini Asia spec." (CPPB). Paratype: 1 ♂ "C Vietnam: Gia Lai Province, Kon Chu Rang Nature Reserve, surroundings HQ, about 900 m 14°28, 450'N, 108°32, 401'E/ leg. L. Bartolozzi, S. Bambi, A. Badinelli, V. Sbordoni- at light 8-12.V.2016 (n° Mag. 3078)" (MZUF).

Description.

Length of body: 9.4 mm; length of elytra: 7 mm; maximum width: 6.3 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: 0.58. Ratio of length of metepisternum/metacoxa: 1/1.63. Posterior margin of metafemur with sharp hook. Metatibia short and wide, ratio width/length: 1/2.78; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 42 E–G. Habitus: Fig. 42H.

Female unknown.

Variation.

Length of body: 9.4-10.1 mm; length of elytra: 7.0-7.8 mm; maximum width: 6.2-6.3 mm.

Diagnosis.

Tetraserica lucai sp. n. differs from the quite similar T. spinicrus (Frey, 1972) by having the metafemur not widened basally, and the sharp hook positioned behind the basal third of the metafemur.

Etymology.

The new species is named after one of its collectors, Dr Luca Bartolozzi (noun in genitive singular).