Tetraserica gestroi (Brenske, 1898)

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 : 82

Tetraserica gestroi (Brenske, 1898) Figures 35, 47

Neoserica gestroi Brenske, 1898: 347.

Tetraserica gestroi : Ahrens 2004: 168.

Type material examined.

Lectotype (here designated): ♂ "Teinzo Birmania Fea Maggio 1886/ ♂/ Serica gestroi Type Brsk./ Typus/ Gestroi Brsk./ S. Gestroi Brsk. typus!" (MSNG). Paralectotypes: 2 ♂♂ "Teinzo Birmania Fea Maggio 1886/ Gestroi Type Brsk./ ♂" (MSNG), 1 ♀ "Teinzo Birmania Fea Maggio 1886/ ♀/ Gestroi Type Brsk./ gestroi Brs." (ZMHB).

Redescription.

Length of body: 9.5 mm; length of elytra: 7.1 mm; maximum width: 6.4 mm. 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: 0.51. Ratio of length of metepisternum/metacoxa: 1/1.68. Metatibia short and wide, ratio width/length: 1/2.8; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 35 E–H. Habitus: Fig. 35I.

Female: Antennal club with three antennomeres, as long as remaining antennomeres combined. Exes smaller than in male, ratio of diameter/interocular width: 0.55. Pygidium flat.