Tetraserica petrpacholatkoi, 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 : 99

Tetraserica petrpacholatkoi sp. n. Figures 42, 51

Type material examined.

Holotype: ♂ "X-DA4697 labcode: VD087 VIETNAM Vinh Phuc Prov., Tam Dao National Park (950 m) 1-4/VI/2013, Legit L. Bartolozzi, S. Bambi, F. Cianferoni, G. Mazza, E. Orbach (n° Mag. 2950), Leihgabe Florenz, Tetraserica sp VI_V48/ 241 Sericini Asia spec./ X-DA4697" (VNMN). Paratype: 1 ♂ "N-Vietnam, (TONKIN) TAMDAO 12-24.5.1989. Pacholátko / coll. P. Pacholátko / VS 47" (CPPB).

Description.

Length of body: 10 mm; length of elytra: 8.1 mm; maximum width: 6.5 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: 0.59. Ratio of length of metepisternum/metacoxa: 1/1.6. 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. 42 I–K. Habitus: Fig. 42L.

Female unknown.

Variation.

Length of body: 9.8-10.0 mm; length of elytra: 7.1-8.1 mm; maximum width: 6.0-6.5 mm.

Diagnosis.

Tetraserica petrpacholatkoi sp. n. differs from T. constanti sp. n. and T. vientianeensis sp. n. by the left paramere being half as long as the phallobase.

Etymology.

The new species is named after one of its collectors, Petr Pacholátko (noun in genitive singular).