Taxonomic notes on the genus Cyphochilus Waterhouse, 1867 (Coleoptera, Scarabaeoidea, Melolonthinae) with description of 10 new species Author Sabatinelli, Guido text Revue suisse de Zoologie 2020 2020-06-04 127 1 157 181 http://dx.doi.org/10.35929/rsz.0014 journal article 117405 10.35929/RSZ.0014 0d204a58-f06b-423f-b85c-06f6e4ad2b71 0035-418 5743429 Cyphochilus tenzingyatsoi n. sp. Figs 29-31 Holotype : MHNG ( MHNG-ENTO-81687 ); 1 ♂ ; TIBET : // CHINA , E. Tibet, 2050-2400 m / N of Brahmaputra great bend / 30˚00˚-07˚ - 94˚22˚- 95˚09˚ [ sic ] / 16-20.VII.1992 , L. & R. Businsky leg. // HOLOTYPUS ♂ / Cyphochilus / tenzingyatsoi mihi / G. Sabatinelli , 2020 ( T on red) //. Paratypes : 8 specimens . CHINA , TIBET : MHNG ; 1♂ , 1 ♀ ; same data as holotype . – NMPC ; 1 ♂ , 1 ♀ ; same data as holotype; ex coll. D. Král. – PCMN ; 2 ♀ ; CHINA , SE Tibet , Tome-Bomê , 3600 m ; 3.VII.1996 , leg. V. Paulus. – PCAB ; 1 ♂ ; East Tibet , Tomi ( Tangmai ), 30 km W. of Donjung, 16.V.2005 ; 2075 m ; leg. A. Wrzecionko. – PCAB ; 1 ♂ ; same data as previous . Description of the holotype male: Size – BL: 24.3 mm , BW: 10 mm , BWX: 13 mm , situated at midpoint of elytra. Color – Integument dark shiny brown except for brown-reddish antennal clubs, other appendices and legs; dorsal surface with white scales densely aggregated along the sides of pronotum and margins of elytra. Head – CW/L: 3.1; anterolateral edges of clypeus rounded, lateral edges of clypeus straight and subparallel; frons large, making eyes relatively small, not prominent (F/O: 3.1); antennal club shorter than antennomeres 2-7 (A2-7/CL: 1.1). Pronotum – Transverse (PnW/L: 2.1), strongly convex; apical angles and lateral margins flattened, slightly acute and not protuberant; basal lateral margins convex, basal angles largely rounded. Elytra – Without any visible striae. Thoracic sterna – Surface with short, white pubescence and scattered scales; mesosternum strongly developed anteriorly (MstL: 1.65 mm ) between the mesocoxae. Abdomen – Sternites with sparse scales except the median part of the eight sternite; pygidium convex with apical margin reflected. Legs – Protibia tridentate with the basal tooth small; slender apical tooth much longer than the middle tooth. Aedeagus – Parameres strongly asymmetric; left paramere with a long ventral process that wrap the right one, like in C. gandhii ; apex of the right paramere concave and with a straight margin ( Figs 29-31 ). Variability: BL: 23.5-25 mm . Females: BL: 25 mm ; antennal club ovate, shorter than preceding antennomeres 2-7 (A2-7/CL: 1.9). Etymology: Jetsun Jamphel Ngawang Lobsang Yeshe Tenzin Gyatso, formally recognized as the 14th Dalai Lama, was the recipient of the 1989 Nobel Peace Prize for his activity in Tibet , from where the new species is described. Type locality: The specimens were collected during two Czech expeditions in the Bomê County of Nyingchi City in the southeastern part of the Tibet Autonomous Region of China . Distribution: Cyphochilus tenzingyatsoi is at present known only from two collection sites in the montane areas of southeastern Tibet . Remarks: This species can be readily separated from all other congeners by its: large body size, elytral striae not elevated, mesosternum armed with a long spur and for the unique shape of the parameres. The morphologically closest species is C. gandhii from which it is easily distinguishable by having antennal club shorter than antennomeres 2-7 and the apex of the right paramere concave and with straight apical margin ( Figs 29 vs. 23). Section 1b Species with mesosternum armed with a short spur, length in lateral view 0.2-0.6 mm ( Fig. 17 ).