A revision of the genus Jucancistrocerus Blüthgen, 1938 from China, with review of three related genera (Hymenoptera: Vespidae: Eumeninae) Author Li, Ting-Jing Chongqing Key Laboratory of Vector Insects; Chongqing Key Laboratory of Animal Biology; Institute of Entomology and Molecular Biology, Chongqing Normal University, Chongqing 401331, China Author Bai, Yue Chongqing Key Laboratory of Vector Insects; Chongqing Key Laboratory of Animal Biology; Institute of Entomology and Molecular Biology, Chongqing Normal University, Chongqing 401331, China & baiyue 18523412133 @ 163. com Author Chen, Bin Chongqing Key Laboratory of Vector Insects; Chongqing Key Laboratory of Animal Biology; Institute of Entomology and Molecular Biology, Chongqing Normal University, Chongqing 401331, China & c _ bin @ hotmail. com text Zootaxa 2022 2022-03-04 5105 3 401 420 journal article 20337 10.11646/zootaxa.5105.3.4 1479edf1-5faf-4e05-8c43-ac881420f314 1175-5326 6332849 75AC29AF-CA8F-48B3-8458-E305678D0540 Jucancistrocerus ( Jucancistrocerus ) tachkensis ( Dalla Torre, 1889 ) ( Figs 47–55 ) Odynerus ornatus André, 1884: 713 [junior secondary homonym of Ancistrocerus ornatus Smith, 1852 , and Leptochilus ornatus de Saussure, 1853 , both placed by Dalla Torre in Odynerus ]; Kostylev, 1940: 41 ( tashkensis [!]). Odynerus tachkensis Dalla Torre, 1889: 125 . Replacement name. Stenancistrocerus ornatus : Blüthgen, 1939: 256 . Jucancistrocerus ornatus : Blüthgen, 1955: 401 . Jucancistrocerus tachkensis : Giordani Soika, 1970: 106 , figs. 38, 39; van der Vecht and Fischer, 1972: 64 . Li, 1985: 124 , fig. VI-4 (misidentification); Gusenleitner, 2013: 40 . Jucancistrocerus lepidus Gusenleitner, 1973: 323 . Material examined . 1♀ , China , Xinjiang , Ili Kazakh Autonomous Prefecture , Huocheng County , near the Train Station , 44.061°′N , 80.840°E , 846 m , 26.VII.2019 , Tingjing Li ; 1♀ , China , Xinjiang , Hemu County , Nongyi Town , 19.VII.2015 , Hongying Hu ; 2♂ , China , Xinjiang , Altay , Habahe County , Kulbai Town , Gulek Village , 48.281°′N , 86.235°E , 80 m , 22.VII.2019 , Tingjing Li ; 1♀ 1♂ , China , Xinjiang , Ili Kazakh Autonomous Prefecture , Huocheng County , Qingshuihe Town , Shuanggou Village , 44.182°′N , 80.685°E , 688 m , 26.VII.2019 , Tingjing Li ; 1♂ , China , Xinjiang , Karamay , Jinlong Town , near the Ayikul Reservoir , 45.526°′N , 84.916°E , 279 m , 23.VII.2019 , Tingjing Li . FIGURES 32–40. Jucancistrocerus ( Jucancistrocerus ) angustifrons , 32, 34, 36–38, ♀ ; 33, 35, 39–40, ♂ . 32–33. Habitus, dorsal view; 34–35. Head, frontal view; 36. Propodeum, dorsal view; 37. Metasoma, dorsal view; 38. Metasoma, ventral view; 39. Antenna; 40. Genitalia, lateral view. FIGURES 41–46. (taken by Alexander V. Fateryga). Jucancistrocerus ( Jucancistrocerus ) angustifrons , paralectotypes, 41, 43, 45, ♀; 42, 44, 46, ♂. 41–42. Habitus, dorsal view; 43–44. Habitus, lateral view; 45–46. Head, frontal view. Notes . According to references and specimens, it is verified that J. ( J. ) tachkensis ( Dalla Torre, 1889 ) (Fig VI-4, in Li 1985 ) was misidentified, and Li’s (1985) specimens actually belong to Pararrhynchium ornatum multifasciatum Giordani Soika, 1986 . To date, J. ( J. ) tachkensis is distributed in Xinjiang rather than Jiangsu , Zhejiang or Sichuan of China . Diagnosis. This species, Jucancistrocerus ( Jucancistrocerus ) tachkensis , is similar to J. ( J. ) alashanicus with almost the same color pattern ( Figs 47–54 ), but its clypeus sculpture is obviously coarser and denser ( Figs 49–50 ), the tegula has bigger and denser punctures ( Fig. 51 ). The clypeus is densely and coarsely punctate, punctures a little sparser in males, the clypeus in females is wider than (1.11×) long and in males longer than wide (1.15×) and apically with deep and rounded emargination in both sexes, apex relatively narrower (female apical width: depth of emargination = 2.89, male apical width: depth of emargination = 2.57); male A13 backward, not reaching the apex of A11 ( Fig. 54 ). Propodeal margin between dorsal and lateral surfaces with tooth-like protuberance; T1 ( Fig. 52 ) wider than (1.48×) long and narrower than (0.76 ×) T2; volsella ( Fig. 55 ) apically narrower and sharper, penis valve ( Fig. 55 ) near the base distinctly with one angular protrusion. Distribution. China ( new record : Xinjiang ); Uzbekistan ; Turkmenistan ; Afghanistan ; Pakistan .