Tetraserica laotica (Frey, 1972) Frey, 1972

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 : 77

Tetraserica laotica (Frey, 1972) comb. n. Figures 33, 49

Neoserica laotica Frey, 1972: 202, fig. 65.

Tetraserica midoriae Kobayashi, 2017: 38, figs 5, 14, syn. n.

Type material examined.

Holotype: ♂ "Laos, V 1967 Ban-Van-Eue/ Type Form1 Neoserica laotica G. Frey 1971" (CF). Paratypes: 1 ♀ "Laos, V 1967 Ban Van Eua/ Paratype Neoserica laotica G. Frey 1971" (CF), 1 ♀ "Laos: Sedone Prov. Pakse, 15.V.1965/ Paratype Neoserica laotica G. Frey 1971" (CF).

Additional material examined.

1 ♂ "Laos: Vientiane Prov. Ban Van Eue 31.V.1966" (BPBM), 1 ♂ "Laos: Vientiane Prov. Ban Van Eue 13-15.IV.1965" (BPBM), 1 ♂ "LAOS Bolikhamxai pr. 18°16 N, 103°11 E 70 Km NEE Vientiane 27-30.iv.1997, 150 m, Vít Kubáň leg./ coll. P Pacholátko” (CPPB), 1 ♂ "LAOS Bolikhamxai pr. 18°16 N, 103°11 E 70 Km NEE Ventiame 2-3.iv.1997, 150 m, Vít Kubáň leg./ coll. P Pacholátko” (CPPB), 2 ♂♂ "Laos, Bolikhamsay Prov. Phou Khao Kuay NBCA Tad Leuk Waterfall, 280 m/ at light No 46, 11-12.IV.1998 leg. O Merkl & G Csorba" (HNHM).

Redescription.

Length of body: 9.8 mm; length of elytra: 6.9 mm; maximum width: 5.6 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: 0.48. Ratio of length of metepisternum/metacoxa: 1/1.73. Metatibia short and wide, ratio width/length: 1/3.06; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 33 I–K. Habitus: Fig. 33L.

Remarks.

The shape of genitalia of the type specimens of T. midoriae Kobayashi, 2017 is virtually identical with that of the holotype of Tetraserica laotica (Frey, 1972). Two female paratype specimens (1 ♀ "Laos, V 1967 Ban Van Eua/ Paratype Neoserica laotica G. Frey 1971" (CF), 1 ♀ "Laos: ban Van Heue 20km E of Phou-kow-kuei, 1-15V.1965/ Paratype Neoserica laotica G. Frey 1971" (CF),) do not belong to this species, as they have both a carinate hypomeron, and are likely to be assigned to the genus Maladera .