Revision of the genus Platyscelis Latreille, 1818 from China (Coleoptera: Tenebrionidae: Platyscelidini) Bai, Xing-Long Ren, Guo-Dong Zootaxa 2019 2019-05-22 4609 1 101 126 Bai & Ren, 2019 Bai & Ren 2019 [151,569,1448,1475] Insecta Tenebrionidae Platyscelis GBIF Animalia Coleoptera 16 117 Arthropoda species helanensis sp. nov. Platyscelis  ( Figs. 4, 25–26, 57–58)   Diagnosis.This new species is similar to  Platyscelis( Platyscelis) gebieni Schuster, 1915, but can be distinguished from the latter by the following characters: (1) punctures dense and fine on head (extremely dense and moderately coarse in  P. gebieni); (2) pronotum with unconnected oval dense and fine punctures at sides (dense and coarse and merged partially in  P. gebieni); (3) parameres narrow and long, dorsal side straight in lateral view (obviously wide, apex curved to dorsal side occasionally in  P. gebieni).   Description.Body black with weakly shining, tarsus, antennae and palpus weak brown.  Male( Figs. 4, 25–26, 57). Anterior margin of frontoclypeus straight, surface with dense and fine punctures. Frons and genae weakly convex, with punctures dense and fine. Eyes transverse, with shallowly emarginate anterior margin. Antennae ( Fig. 4: B) almost reaching base of pronotum, 2nd to 8th antennomeres cylindrical and thicker at apex, 9th to 10th almost spherical, and 11th sharped-oval. Length (width) ratio of 2nd to 11th antennal segments 29 (16): 76 (19): 41 (18): 40 (18): 38 (18): 39 (19): 39 (22): 33 (22): 33 (26): 43 (27).   FIGURES 57–62.Habitus. 57–58.  Platyscelis helanensis(57. male, holotype; 58. female, paratype); 59–60.  P. licenti(males, 59. lectotype); 61.  P. subcordata(male); 62.  P. suiyuana(male, paralectotype). Pronotum ( Fig. 4: A) transverse and convex, widest at base, 1.5 times as wide as long, 2.1 times as wide as head. Lateral margins nearly parallel from base to middle and arcuately narrowing toward apex. Ratio of width at anterior margin to basal 25: 49. Anterior margin nearly straight and posterior one straight. Anterior angles obtuse and posterior ones rectangular. Lateral margins edged in anterior margin and posterior one not edged, entire lateral margins edged, widely depressed from base to middle. Punctures fine and dense on disc, unconnected and oval at sides. Prothoracic hypomera with coarse wrinkles and sparse yellow setae. Prosternum before procoxae with yellow setae, prosternal process projecting beyond level of procoxae, weak sharp at apex in lateral view. Mesoventrite with punctures and yellow setae. Elytra oval and weak convex, base moderately wider than pronotum and widest at middle, 1.2 times as long as wide and 1.2 times as wide as pronotum. Surface rough, with shallowly dense and coarse punctures, while smaller and blurred at apex, and weak longitudinal carinae or traces. Lateral carina visible nearly completely in dorsal view and almost reaching sutural angle. Abdomen with short sparse yellow setae, not depressed at middle of 1st and 2nd ventrites. Profemora with sparse punctures and yellow setae. Protibiae ( Fig. 4: D) gradually widened towards apex and curved at inner side, underside concave at apex and apical margin foliate extended, inner side with dense yellow hairbrush at apex. Protarsi ( Fig. 4: C) strongly widened but narrower than apex of protibiae. Meso- and metafemora longer than profemora. Mesotibiae ( Fig. 4: E) gradually widened toward apex with rufous strong setae. Mesotarsi ( Fig. 4: F) moderately widened and narrower than apex of mesotibiae. Metatibiae ( Fig. 4: G) straight, with rufous strong setae. Length (width) ratio of pro-, meso- and metafemora 27 (10): 30 (8): 38 (9), that of corresponding tibiae 25 (9): 26 (6): 34 (6), and protarsi 22 (28): 50 (71): 30 (63): 13 (33): 54 (23), mesotarsi 31 (35): 51 (57): 30 (41): 20 (29): 71 (24), metatarsi ( Fig. 4: H) 109 (29): 57 (28): 39 (25): 82 (24). Aedeagus ( Figs. 4: I–K, 25–26) 3.5 mmlong and 0.9 mmwide. Parameres 1.0 mm long and 0.6 mmwide, narrow and long, widest at base and narrowing toward apex, outer margins with sharp hooks at apex, dorsal side straight in lateral view.  Female( Fig. 58). Body wider, antennae not reaching base of pronotum, pro- and mesotarsi not widened, other characters similar to male.  Measurements.Body length: ♂ 10.9–12.1 mm, ♀11.0– 11.6 mmand width: ♂ 5.7–6.3 mm, ♀ 5.9–6.5 mm.   Type material.   Holotype: ♂( MHBU),  CHINA: Inner Mongolia: Halawu, Helan Shan,  25–26.VII.2010, Guo-Dong Ren et al. leg.   Paratypes: 27♂♂, 17♀♀( MHBU), Guo-Dong Ren, Wen-Jun Hou, You-Zhi Yu& Long Jialeg., same data as holotype;  1♂( MHBU), Helan Shan,  25.VI.1994;  11♂♂, 28♀♀( MHBU), S of Halawu, Helan Shan,  21.VII.1990, Guo-Dong Renleg.;  1♂( MHBU), Halawu, Helan Shan,  23.VI.1994, Zhi-Qiang Sun& Chun-Yan Liuleg.;  1♀( MHBU), W slope of Helan Shan,  24.VI.1994, Si-Qin Geleg.;  2♂♂, 1♀( MHBU), Beisi, Helan Shan,  24.VII.2010, Guo-Dong Ren, Wen-Jun Hou, You-Zhi Yu& Long Jialeg.;  1♂( MHBU), Gulaben, Alxa Left Banner,  23.VII.2010, Guo-Dong Renleg.;  2♂♂( MHBU), Xiazigou, Alxa Left Banner,  6.VIII.2010, Guo-Dong Ren& Long Jia et al. leg.;   Ningxia: 3♂♂, 2♀♀( MHBU), Helan Shan,  1.VI.1987, Guo-Dong Renleg.;  2♂♂, 2♀♀( MHBU), Helan Shan,  2.VI.1987, Guo-Dong Renleg.;  2♀♀( MHBU), Helan Shan,  3.VI.1987, Guo-Dong Renleg.;  1♂, 1♀( MHBU), Helan Shan,  2.VII.1987, Guo-Dong Renleg.;  1♀( MHBU), Helan Shan,  1.VI.1988, Guo-Dong Renleg.;  1♂( MHBU), Helan Shan,  4.VI.1990, Guo-Dong Renleg.;  2♂♂, 3♀♀( MHBU), Helan Shan,  24.VI.1990, Guo-Dong Renleg.;  1♀( MHBU), Helan Shan,  4.V.1994, Guo-Dong Renleg.;  1♀( MHBU), Suyukou, Helan Shan,  20.VI.1990;  13♂♂, 31♀♀( MHBU), Luo Shan, Tongxin,  1.VI.1984, Guo-Dong Renleg.;  1♀( MHBU), Luo Shan, Tongxin,  29.V.1989, Guo-Dong Renleg.;  3♂♂, 7♀♀( MHBU), Luo Shan, Tongxin,  20.VII.2009, Xin-Pu Wang& Hong-Fan Ranleg.;  1♂, 1♀( MHBU), Yaoshan, Tongxin,  2100 m,  12.VIII.1987, Guo-Dong Renleg.;  1♂( MHBU), Yaoshan, Tongxin,  20.VIII.1987;  6♂♂, 4♀♀( MHBU), Tongxin,  12.VIII.1987, Guo-Dong Renleg.;  1♂( MHBU), Tongxin,  12.VIII.1989, Guo-Dong Renleg.   Distribution. China: Inner Mongolia, Ningxia.   Etymology.This species is named derived from the typelocality—Helan Shan. 2243139926 2010-07-25 2010-07-26 2010-07-25 MHBU Guo-Dong Ren China Helan Shan Halawu 18 119 1 Nei Mongol holotype 2243136346 MHBU You-Zhi Yu & Long Jia China Wen-Jun Hou Guo-Dong Ren 18 119 44 17 27 Nei Mongol paratype 2243136402 [243,492,1197,1223] 2010-07-25 2010-07-26 2010-07-25 MHBU Guo-Dong Ren China Helan Shan Halawu 18 119 1 Nei Mongol paratype 2243136407 [502,932,1196,1224] 1994-06-25 MHBU China Helan Shan 18 119 1 1 Nei Mongol paratype 2243136363 1990-07-21 MHBU Guo-Dong Ren China Helan Shan Halawu 18 119 39 28 11 Nei Mongol paratype 2243136274 1994-06-23 MHBU Zhi-Qiang Sun & Yan Liu China Helan Shan Halawu 18 119 1 1 Nei Mongol paratype 2243136270 [306,1053,1269,1295] 1994-06-24 MHBU Si-Qin Ge China Helan Shan 18 119 1 1 Nei Mongol paratype 2243136411 2010-07-24 MHBU Guo-Dong Ren & Wen-Jun Hou & You-Zhi Yu & Long Jia China Helan Shan Beisi 18 119 3 1 2 Nei Mongol paratype 2243136352 2010-07-23 MHBU Guo-Dong Ren China Alxa Left Banner Gulaben 18 119 1 1 Nei Mongol paratype 2243136449 2010-08-06 MHBU Guo-Dong Ren & Long Jia China Alxa Left Banner Xiazigou 18 119 2 2 Nei Mongol paratype 2243136301 [451,1300,1376,1404] 1987-06-01 MHBU Guo-Dong Ren China Helan Shan 18 119 5 2 3 Ningxia paratype 2243136282 1987-06-02 MHBU Guo-Dong Ren China Helan Shan 18 119 4 2 2 Ningxia paratype 2243136305 [766,1431,1413,1439] 1987-06-03 MHBU Guo-Dong Ren China Helan Shan 18 119 2 2 Ningxia paratype 2243136335 [151,869,1449,1476] 1987-07-02 MHBU Guo-Dong Ren China Helan Shan 18 119 2 1 1 Ningxia paratype 2243136343 1988-06-01 MHBU Guo-Dong Ren China Helan Shan 18 119 1 1 Ningxia paratype 2243136362 [257,903,1485,1512] 1990-06-04 MHBU Guo-Dong Ren China Helan Shan 18 119 1 1 Ningxia paratype 2243136333 1990-06-24 MHBU Guo-Dong Ren China Helan Shan 18 119 5 3 2 Ningxia paratype 2243136263 [384,1019,1521,1547] 1994-05-04 MHBU Guo-Dong Ren China Helan Shan 18 119 1 1 Ningxia paratype 2243136417 1990-06-20 MHBU China Helan Shan Suyukou 18 119 1 1 Ningxia paratype 2243136312 [294,1151,1557,1583] 1984-06-01 MHBU Guo-Dong Ren China Tongxin Luo Shan 18 119 44 31 13 Ningxia paratype 2243136331 1989-05-29 MHBU Guo-Dong Ren China Tongxin Luo Shan 18 119 1 1 Ningxia paratype 2243136397 2009-07-20 MHBU Wang & Hong-Fan Ran China Tongxin Luo Shan 18 119 10 7 3 Ningxia paratype 2243136347 [378,1274,1629,1656] 1987-08-12 MHBU Guo-Dong Ren China 2100 Tongxin Yaoshan 18 119 2 1 1 Ningxia paratype 2243136364 1987-08-20 MHBU China Tongxin Yaoshan 18 119 1 1 Ningxia paratype 2243136442 [529,1272,1665,1692] 1987-08-12 MHBU Guo-Dong Ren China Tongxin 18 119 10 4 6 Ningxia paratype 2243136435 1989-08-12 MHBU Guo-Dong Ren China Tongxin 18 119 1 1 Ningxia paratype