Rhinodontus ignarus Rhinodontus proximus centralis On Chinese Trachyphloeini with description of four new species (Coleoptera, Curculionidae, Entiminae) Ren, Li Borovec, Roman Zhang, Runzhi ZooKeys 2020 974 93 119 8F6F4056-F0C6-5E77-BDE5-EF41EBA5E089 Faust, 1890 Faust 1890 Insecta Curculionidae Rhinodontus CoL Animalia Rhinodontus ignarus Coleoptera 0 93 Arthropoda species ignarus   Rhinodontus ignarusFaust, 1890: 455 (original description); Alonso-Zarazaga and Lyal 1999: 183 (catalogue); Borovec 2003: 32 (redescription); Borovec 2009: 76 (check-list); Alonso-Zarazaga et al. 2017: 403 (catalogue).  Rhinodontus proximus centralisVoss, 1967: 276 (original description).  Material examined. China - Inner Mongolia Autonomous Region• 2 ♀♀; 阿拉善左旗贺兰山哈拉乌青树湾[Alxa Zuoqi, Helan Mountains, Halawu, Qingshuwan]; 30 Jul. 2010; 黄鑫磊[X.L. Huang leg.]; IZCAS, IOZ(E)1965140, IOZ(E)1965142; • 1 ♀; 阿拉善左旗贺兰山强岗岭[Alxa Zuoqi, Helan Mountains, Qianggangling]; 8 Aug. 2010; 黄鑫磊[X.L. Huang leg.]; IZCAS, IOZ(E)1965141; • 6 ♀♀; 阿拉善左旗贺兰山哈拉乌主峰[Alxa Zuoqi, Helan Mountains, the main top of Halawu]; 1 Aug. 2010; 黄鑫磊[X.L. Huang leg.]; IZCAS, IOZ(E)1965143-1965148. Mongolia • 1 ♀, Centralnyi Aimak, Dzorgol-Khairkhan, 30 km NE Undzhul; 16 Jul. 1973; G. Medvedev leg.; ZIN; • 1 ♀; Centralnyi Aimak, Dzorgol-Khairkhan, Uver-Undzhul-Ul hill; 16 Jul. 1973; G. Medvedev leg.; ZIN.  Remarks. Nine females from China (Inner Mongolia) have the spermatheca with a shorter ramus and more slender collum and nine spines at the protibial apex in comparison with previously known material, including the type specimens, of the species having only eight spines. Due to the lack of males of this population we currently retain it as conspecific with  R. ignarus.