Tetraserica neouncinata, 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 : 16

Tetraserica neouncinata sp. n. Figures 1, 50

Type material examined.

Holotype: ♂ "NE-Laos: Houa Phan prov.; Ban Saleui, Phou Pan (Mt.)- 20°12'N, 104°01'E, 11.iv.-15.v. 2012, 1300-1900 m leg. C. Holzschuh - ZFMK Ankauf 2012" (ZFMK). Paratypes: 1 ♂ "X-DA4582/ X-DA4582 labcode VD049 Laos: Houa Phan prov.; Ban Saleui, Phou Pan (Mt.)- 20°12'N, 104°01'E, 15-30.iv.2014 leg. C. Holzschuh Ankauf 2014/ Tetraserica spLA_V22/ sp-LA-V22" (ZFMK), 1 ♂ "Laos-NE, Houa Phan prov., 20°12-13.5'N, 103°59.5'-104°01'E, Ban Saluei- Phou Pane Mt., 1340-1870 m, 10.v.-16.vi.2009, M. Brancucci & local coll. leg./ NHMB Basel, NMPC Prague Laos 2009 Expedition: M. Brancucci, M. Geiser, Z. Kraus, D. Hauck, V. Kubáň” (NHMB), 2 ♂♂ "NE-Laos: Houa Phan prov., 20°13'09-19"N, 103°59'54"-104°00'03"E, 1480-1510 m, Phou Pane Mt., 22.iv.- 14.v.2008, Vít Kubán leg." (ZFMK), 1 ♂ "Myanmar, Mandalay prov. Kyaukpadanng 10.6.2009 From Li Jingke" (ZFMK).

Description.

Length of body: 8.8 mm; length of elytra: 7.9 mm; maximum width: 6.1 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: 0.55. Ratio of length of metepisternum/metacoxa: 1/1.76. Posterior margin of metafemur with blunt tooth. Metatibia moderately long and wide, ratio width/length: 1/3.31; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 1 J–M. Habitus: 1N.

Female unknown.

Variation.

Length of body: 8.8-9.8 mm; length of elytra: 7.1-7.9 mm; maximum width: 5.8-6.1 mm.

Diagnosis.

The new species differs from the similar T. daqingshanica by the dorsal lobe of the right paramere being wide and straight in the basal half and curved in the apical half; the apex of left paramere gently narrows towards apex in T. neouncinata .

Etymology.

The species name (adjective in the nominative singular) is derived from the combined Greek word neo- (new) and Latin word uncinatus, with reference to the uncinated shape of the right paramere.