Tetraserica pseudoruiliensis, 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 : 79-80

Tetraserica pseudoruiliensis sp. n. Figures 34, 54

Type material examined.

Holotype: ♂ 1 ♂ "BURMA (Myanmar) SW Shan state INLE lake - NYAUNGSHWE J. Rejsek 7.-16.6.1997/ coll. Dirk Ahrens/ 148 Sericini Asia spec." (ZFMK). Paratypes: 8 ♂♂ "NW Thailand, 30.4.1992, Mae Hong Song 350 m, S. Bily leg./ NHM Basel/ 121 Sericini Asia spec." (NHMB), 1 ♂ "X-DA4637/ X-DA4637 labcode: VD071, THAILAND, Chiang Dao Hill Resort 600 m, 19.55779N 99.0766E, 8.-12.vi.2011, M. Murzin, O. Shulga leg., Tetraserica spTH_V38/ sp LAV8" (ZFMK), 1 ♂ "NW Thailand: MAE HOG SON 29.-30.4.1992 J. Horak leg./ coll. P. Pacholátko” (CPPB), 1 ♂ "THAI, 9.-14.V.1991 CHIANG DAO 350m 19°22' N 98°57'E, Vit Kubáň leg./ Thailand 91 "Thanon Thong Chai" D. Kral & V. Kubáň / coll. P. Pacholátko” (CPPB), 4 ♂♂ "NE Thailand, 28.4.1991, Mae Hong Son S. Bily leg." (NHMB), 16 ♂♂ "Thailand 9.-14.V.1991 Chiang Dao 350 m 19°22'N, 98°57'E, V. Kuban lg./ coll. Milan Nikodym, Praha" (ZFMK), 17 ♂♂, 3 ♀♀ "Thailand 9.-16.5.1991 Mae Hong Son Ban Busi Po 1600-2000 m J. Horak lgt./ coll. Milan Nikodym, Praha" (ZFMK), 25 ♂♂, 28 ♀♀ "Thai 9-14.5.1991 Chiang Dao 350 m 19°22'N, 98°57'E, D. Kral lgt." (NMPC), 1 ♂ "X-DA4604/ X-DA4604 labcode: VD061, LAOS, Stupa GH, 5km W Muang Sing, 750 m, 21.1482N 101.1711E, 9.v-2.vi.2011, M. Murzin, O. Shulga leg. Tetraserica spLA_V34" (ZFMK), 1 ♂ "X-DA4605/ X-DA4605 labcode: VD062, LAOS, Stupa GH, 5km W Muang Sing, 750 m, 21.1482N 101.1711E, 9.v-2.vi.2011, M. Murzin, O. Shulga leg. Tetraserica spLA_V34" (ZFMK), 1 ♂ "X-DA4610/ X-DA4610 labcode: VD063, LAOS, Stupa GH, 5km W Muang Sing, 750 m, 21.1482N 101.1711E, 9.v-2.vi.2011, M. Murzin, O. Shulga leg. Tetraserica spLA_V34" (ZFMK), 1 ♂ "X-DA4612/ X-DA4612 labcode: VD064, LAOS, Stupa GH, 5km W Muang Sing, 750 m, 21.1482N 101.1711E, 9.v-2.vi.2011, M. Murzin, O. Shulga leg. Tetraserica spLA_V34" (ZFMK), 1 ♂ "X-DA4623/ X-DA4623 labcode: VD065, LAOS, Stupa GH, 5km W Muang Sing, 750 m, 21.1482N 101.1711E, 9.v-2.vi.2011, M. Murzin, O. Shulga leg. Tetraserica spLA_V34" (ZFMK), 1 ♂ "X-DA4636/ X-DA4636 labcode: VD070, LAOS, Stupa GH, 5 km W Muang Sing, 750 m, 21.1482N 101.1711E, 9.v-2.vi.2011, M. Murzin, O. Shulga leg. Tetraserica spLA_V38" (ZFMK), 1 ♂ "X-DA4519/ X-DA4519 labcode: VD035, LAOS NW, h=750 m 5 km W Muang Sing Chiang Tung (Stupa), GH 9-14.VI.2010, S. Murzin Tetraserica spLA_V8" (ZFMK), 1 ♂ "X-DA4520/ X-DA4520 labcode: VD036, LAOS NW, h=750 m 5 km W Muang Sing Chiang Tung (Stupa), GH 9-14.VI.2010, S. Murzin Tetraserica spLA_V8" (ZFMK), 1 ♂ "X-DA4529/ X-DA4529 labcode: VD038, LAOS NW, h=750 m 5 km W Muang Sing Chiang Tung (Stupa), GH 9-14.VI.2010, S. Murzin Tetraserica spLA_V8" (ZFMK), 1 ♂ "X-DA4536/ X-DA4536 labcode: VD035, LAOS NW, h=750 m 5 km W Muang Sing Chiang Tung (Stupa), GH 9-14.VI.2010, S. Murzin Tetraserica spLA_V8" (ZFMK), 1 ♂ "X-DA4732 LAOS Stupa GH, 5km W Muang Sing, 750 m, 21.1482N 101.1711E 9.v.-2.vi.2011 M. Murzin, O. Shulga leg." (ZFMK), 1 ♂ "X-DA4735 LAOS Stupa GH, 5 km W Muang Sing, 750 m, 21.1482N 101.1711E 9.v.-2.vi.2011 M. Murzin, O. Shulga leg." (ZFMK), 1 ♂ "X-DA4738 LAOS Stupa GH, 5km W Muang Sing, 750 m, 21.1482N 101.1711E 9.v.-2.vi.2011 M. Murzin, O. Shulga leg." (ZFMK).

Description.

Length of body: 10.5 mm; length of elytra: 7.8 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: 1/1.56. Metatibia short and wide, ratio width/length: 1/2.75; basal group of dorsal spines of metatibia at first third of metatibial length.

Aedeagus: Fig. 34 E–G. Habitus: Fig. 34H.

Female unknown.

Variation.

Length of body: 10.0-10.5 mm; length of elytra: 7.2-7.8 mm; maximum width: 6.1-6.4 mm.

Diagnosis.

Tetraserica pseudoruiliensis sp. n. differs from the similar T. gestroi (Brenske, 1898) by the right paramere which is much less than one third as long as left paramere. The new species differs from T. ruiliensis Liu et al., 2014 by the left paramere being straight rather than bent at the base.

Etymology.

The species name (adjective in the nominative singular) is derived from the combined Greek prefix pseudo- (false) and the species name ruiliensis , with reference to the similarity to T. ruiliensis Liu et al.