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Genus Stenancistrocerus de Saussure, 1863 Stenancistrocerus de Saussure, 1863: 216, division of subgenus Ancistrocerus Wesmael of genus Odynerus Latreille (2 species). Type species Odynerus atropos Lepeletier, 1841, by subsequent designation of Bequaert, 1925. Stenancystrocerus [!] Dalla Torre, 1894: 55-95, on 10 pages. Atropancistrocerus Blüthgen, 1938b: 442, 444, 461. Type species Odynerus (Ancistrocerus) hispanicus Dusmet, 1903, by original designation. Diagnosis. Clypeus wider than long, apical margin widely emarginated, emargination wider than interantennal distance (Fig. 74); pretegular keel present and developed on the pronotum; tegula impunctate (Fig. 76); transverse edge of T1 lying on the plane of the horizontal surface, directly behind the carina roughly punctate (Fig. 77); punctures on T3 no coarser than those of T2 (Fig. 79). Distribution. Palaearctic and Oriental Region., Published as part of Li, Ting-Jing, Bai, Yue & Chen, Bin, 2022, A revision of the genus Jucancistrocerus Blüthgen, 1938 from China, with review of three related genera (Hymenoptera: Vespidae: Eumeninae), pp. 401-420 in Zootaxa 5105 (3) on page 415, DOI: 10.11646/zootaxa.5105.3.4, http://zenodo.org/record/6332849, {"references":["de Saussure, H. (1863) Melanges Hymenopterologiques II. Memoires de la Societe de Physique d'Histoire Naturelle de Geneve, 17, 171 - 244, pl. 2. https: // doi. org / 10.1080 / 00379271.1863.11755423","Lepeletier, S. F. A. (1841) Histoire Naturelle des Insectes. Hymenopteres II. Librairie Encyclopedique de RORET, Paris, 694 pp.","Dalla Torre, C. G. de (1894) Catalogus hymenopterorum hucusque descriptorum et systematicus et synonymicus. Vol. 10. Vespidae (Diploptera). Gustav Engelmann, Leipzig, 8 + 181 pp. https: // doi. org / 10.5962 / bhl. title. 10348","Bluthgen, P. (1938 b) Beitrage zur Kenntnis der palaarktischen Eumeniden (Hym. Vespidae). Deutsche Entomologische Zeitschrift, 2, 434 - 496. https: // doi. org / 10.1002 / mmnd. 193819380208"]}

Genus Tachyancistrocerus Giordani Soika, 1952 Tachyancistrocerus Giordani Soika, 1952: 37, replacement name for Subancistrocerus sensu Blüthgen, 1938b. Type species Odynerus rhodensis de Saussure, 1855, by original designation. Subancistrocerus Blüthgen, 1938b: 441, 460. Non Subancistrocerus de Saussure, 1855. Diagnosis. Apical margin of clypeus narrow and almost truncate or at most shallowly emarginated; pretegular keel present and developed on the pronotum; tegula impunctate (Fig. 86), posteriorly not reaching posterior margin of parategula; male A13 hooked, not rolled; metanotum depressed medially (Fig. 87); T1 (Fig. 88) basally with transverse carina lying below horizontal surface of this tergum, an obliquely sloping surface behind the transverse carina and occupied only by a few coarse punctures; punctures on visible part of T3 much coarser than those at the base of T2 (Fig. 89). Distribution. Palaearctic and Ethiopian., Published as part of Li, Ting-Jing, Bai, Yue & Chen, Bin, 2022, A revision of the genus Jucancistrocerus Blüthgen, 1938 from China, with review of three related genera (Hymenoptera: Vespidae: Eumeninae), pp. 401-420 in Zootaxa 5105 (3) on pages 416-417, DOI: 10.11646/zootaxa.5105.3.4, http://zenodo.org/record/6332849, {"references":["Giordani Soika, A. (1952) Sulle caratteristiche biogeografiche della Palestina, Arabia ed Egitto, con un contributo alla conoscenza degli Zethini ed Eumenini della Palestina. Bollettino della Societa Veneziana di Storia Naturale e del Museo Civico di Storia Naturale, 6, 5 - 62.","Bluthgen, P. (1938 b) Beitrage zur Kenntnis der palaarktischen Eumeniden (Hym. Vespidae). Deutsche Entomologische Zeitschrift, 2, 434 - 496. https: // doi. org / 10.1002 / mmnd. 193819380208","de Saussure, H. (1855) s. n. In: Etudes sur la Famille des Vespides 2. La Monographie des Masariens et un supplement la Monographie des Eumeniens. V. Masson, Paris & J. Kessmann, Geneve, pp. 49 - 288, pls. 6 - 14."]}

Eustenancistrocerus Blüthgen, 1938 Eustenancistrocerus Blüthgen, 1938b: 443, 460, subgenus of “ Stenancistrocerus de Saussure ” sensu Blüthgen; Blüthgen, 1951: 173. Type species Odynerus (Odynerus division Epsilon) blanchardianus de Saussure, 1855, by original designation. Diagnosis. Clypeus wider than long; pretegular keel absent on the pronotum; tegula posteriorly exceeding the apex of parategula; tegula in subgenus Eustenancistrocerus with dense, strong, and sieve-like translucent punctures (Fig. 60), yet in subgenus Parastenancistrocerus inconspicuous, fine and superficially punctate, usually with only two slightly larger translucent spots (Fig. 70); transverse carina at base of T1 lying on the plane of the horizontal surface (Figs 62, 71). Distribution. Palaearctic, Ethiopian, and Oriental Region., Published as part of Li, Ting-Jing, Bai, Yue & Chen, Bin, 2022, A revision of the genus Jucancistrocerus Blüthgen, 1938 from China, with review of three related genera (Hymenoptera: Vespidae: Eumeninae), pp. 401-420 in Zootaxa 5105 (3) on page 412, DOI: 10.11646/zootaxa.5105.3.4, http://zenodo.org/record/6332849, {"references":["Bluthgen, P. (1938 b) Beitrage zur Kenntnis der palaarktischen Eumeniden (Hym. Vespidae). Deutsche Entomologische Zeitschrift, 2, 434 - 496. https: // doi. org / 10.1002 / mmnd. 193819380208","Bluthgen, P. (1951) Neue oder bemerkenswerte palaarktische Faltenwespen aus der Zoologischen Staatssammlung in Miinchen (Hymenoptera, Vespidae, Eumenidinae). Mitteilungen der Munchner Entomologischen Gesellschaft, Munich, 41, 166 - 201.","de Saussure, H. (1855) s. n. In: Etudes sur la Famille des Vespides 2. La Monographie des Masariens et un supplement la Monographie des Eumeniens. V. Masson, Paris & J. Kessmann, Geneve, pp. 49 - 288, pls. 6 - 14."]}

Jucancistrocerus (Jucancistrocerus) angustifrons (Kostylev, 1940) (Figs 32–46) Odynerus angustifrons Kostylev, 1940: 27 (in subgenus Jucancistrocerus). Jucancistrocerus angustifrons: van der Vecht and Fischer, 1972: 63; Kurzenko, 1977: 551; Tan et al., 2018: 142. Material examined. 7♀ 4♂, China, Gansu Province, Jiuquan City, Suzhou District, Sandun Town, Jiabiangou Village, 39.854°N, 98.809°E, 1346m, 18.VI.2019, Xue Zhang; 7♀ 3♂, China, Gansu Province, Zhangye City, Gaotai County, Heiquan Town, Yanzhibao Village, 39.903°N, 98.563°E, 1424m, 19.VI.2019, Xue Zhang. Diagnosis. Body black, with the following yellow to ferruginous yellow markings: clypeus except margins, a band along lower inner margin of eye, interantennal spot, mandible, a long band of gena, A1, pronotum except posterior apex, scutellum and metanotum except their anterior margins, tegula, parategula, border between dorsal and lateral-posterior surfaces of propodeum, legs except hind coxa to apex of femur, and T1 greatly except anterior black spot, T2 except an unbroken black band, and apical bands of T3–T5 or T3–T6, and S1–S2; clypeus wider than (1.15×) long in female (Figs 34, 45) and longer than wide (1.16×) in male (Figs 35, 46), sparsely punctate in female and punctures much smaller and minute in male, and apically with deep and rounded emargination in both sexes (female apical width: depth of emargination= 3.96, male apical width: depth of emargination= 2.25); propodeal margin between dorsal and lateral surfaces with distinct tooth-like protuberance (Fig. 36); body with coarse punctures; propodeal margin between dorsal surfaces and lateral and posterior surfaces with tooth-like protuberance; male A13 (Fig. 39) not reaching the apex of A11; T1 (Fig. 37) wider than (1.37×) long and narrower than (0.75 ×) T2; volsella (Fig. 40) apically narrow and sharp, penis valve near the base distinctly with one subquadrate protrusion. Distribution. China (Gansu, Qinghai, Inner Mognolia)., Published as part of Li, Ting-Jing, Bai, Yue & Chen, Bin, 2022, A revision of the genus Jucancistrocerus Blüthgen, 1938 from China, with review of three related genera (Hymenoptera: Vespidae: Eumeninae), pp. 401-420 in Zootaxa 5105 (3) on page 408, DOI: 10.11646/zootaxa.5105.3.4, http://zenodo.org/record/6332849, {"references":["Kostylev, G. (1940) Especes nouvelles et peu connues de Vespides, d'Eumenides et de Masarides palearctiques (Hymenoptera). II. Bulletin de la Societe des naturalistes de Moscou, Section biologique, New Series, 49, 24 - 42.","van der Vecht, J. & Fischer, F. C. J. (1972) Hymenopterorum Catalogus: Pars 8: Palaearctic Eumenidae. Junk N. V., ' s-Gravenhage, 199 pp.","Kurzenko, N. V. (1977) Eumenid wasps (Hymenoptera, Eumenidae) of the Mongolian People's Republic and adjacent regions of China and southern Sibera. Nasekomye Mongolii = Insects of Mongolia, 5, 537 - 582.","Tan, J. L., Carpenter, J. M. & van Achterberg, C. (2018) An illustrated key to the genera of Eumeninae from China, with a checklist of species (Hymenoptera, Vespidae). Zookeys, 740, 109 - 149. https: // doi. org / 10.3897 / zookeys. 740.22654"]}

Eustenancistrocerus (Parastenancistrocerus) amadanensis amadanensis (de Saussure, 1855) (Figs 65–72) Odynerus amadanensis de Saussure, 1855: 214; Bingham, 1897: 364; Dalla Torre, 1904: 40 (in subgenus Ancistrocerus; cat.). Odynerus turca de Saussure, 1863: 218 (in subgenus Stenancistrocerus). Odynerus transitorius Morawitz, 1867: 117; 1895: 445 (syn.: O. vagus Radoszkowski = vagabundus Dalla Torre; distribution); Morice, 1921: 200; Castro, 1992: 28 (syn. of E. amadanensis amadanensis (de Saussure)). Odynerus lobatus André, 1883: 229 (in subgenus Ancistrocerus); Gusenleitner, 2001: 213 (designation of lectotype). Stenancistrocerus transitorius: Blüthgen, 1938a (1937): 282 (probable syn.: lobatus); 1939: 253 (compared to amadanensis). Stenancistrocerus amadanensis: Blüthgen, 1939: 252 (syn.: Odynerus turca; Mesopotamia = “ Odynerus transitorius ” Morice, 1921). Ancistrocerus iranensis Giordani Soika, 1943: 6, fig. 3 (2) (in subgenus Ancistrocerus); Borsato and Ratti, 1999: 80 (syn. of E. amadanensis (de Saussure)). Parastenancistrocerus transitorius: Blüthgen, 1951: 173; Castro, 1986: 295. Eustenancistrocerus transitorius hoberlandti Giordani Soika, 1951: 378; van der Vecht and Fischer, 1972: 62; Gusenleitner, 1988: 111 (syn. of E. amadanensis (de Saussure)). Eustenancistrocerus lobatus flavellus Giordani Soika, 1952: 36; Borsato and Ratti, 1999: 83 (syn. of E. amadanensis (de Saussure)). Parastenancistrocerus amadanensis: Blüthgen, 1955: 401–402 (syn.: Eustenancistrocerus lobatus flavellus; iranensis = red phase of amadanensis). Eustenancistrocerus amadanensis: Giordani Soika, 1970: 101, fig. 28, 29; van der Vecht and Fischer, 1972: 61. Eustenancistrocerus transitorius: Giordani Soika, 1970: 99-101, fig. 26, 27; van der Vecht and Fischer, 1972: 62 (cat.). Eustenancistrocerus amadanensis transitorius: Gusenleitner, 1988: 112. Eustenancistrocerus amadanensis amadanensis: Castro, 1992: 28, syn.: E. a. transitorius (Morawitz); Gusenleitner, 2006: 1302; Amolin et al., 2006: 180; Oehlke 2012: 598; Fateryga et al., 2019: 30. Material examined. 1♀ 1♂, China, Xinjiang, Altay City, Fuyun County, Karatonke Town, 46.916°′N, 89.589°E, 846 m, 20.VII.2019, Tingjing Li; 1♂, China, Xinjiang, Altay City, Aweitan Town, Koktobe Village, 47.721°′N, 89.721°E, 700 m, 21.VII.2019, Tingjing Li; 1♂, China, Xinjiang, Changji Hui Autonomous Prefecture, Jimusar County, Ergong Town, Dongliang Village, 43.976°′N, 89.237°E, 755 m, 18.VII.2019, Tingjing Li; 1♀, China, Xinjiang, Altay City, Fuyun County, Kurt Dala Awuzi Village, 47.031°′N, 89.381°E, 849 m, 20.VII.2019, Tingjing Li; 1♀, China, Xinjiang, Fukang City, Ganhezi Town, Shagoukou, Villagel, 44.092°′N, 88.378°E, 897 m, 18.VII.2019, Tingjing Li; 1♀, China, Xinjiang, Altay City, Habahe County, Salblak Town, Garang Ash Village, 48.186°′N, 86.010°E, 504 m, 22.VII.2019, Tingjing Li; 1♀, China, Xinjiang, Altay City, Habahe County, Kulbai Town, Jiangjulek Village, 48.281°′N, 86.235°E, 809 m, 22.VII.2019, Tingjing Li; 1♀, China, Xinjiang, Qitai County, Qiaoren Town, 29.VII.2012, Hongying Hu. Diagnosis. Body black, with the following whitish yellow to yellow markings: two small lateral spots at base of female clypeus (whole male clypeus), medial frontal spot (bigger in male and connecting clypeus), eye sinus (extending to clypeus in male), basal antennal segments ventrally, male mandible except apex, a small band on gena, two anterior interrupted transverse bands of pronotum, tegula, part of parategula, lateral-dorsal surface of propodeum, legs greatly, lateral side and apical band of T1, two big lateral spots at base and apical band of T2 and apical bands of T3–T5 or T3–T6, apical band of S2 and lateral spot at apex of S3; body coarsely punctate, those on head relatively sparser than those on remaining parts, punctures on T1 and S2 a little coarser than rest terga and sterna; clypeus (Figs 67–68) wider than long, moderately to coarsely punctate and apically with wide emargination forming two lateral teeth; tegula inconspicuous, fine and superficially punctate, usually with only two, slightly larger translucent spots (Fig. 70); propodeal margin between dorsal and lateral surfaces with indistinct tooth-like protuberance; body coarsely punctate, head and mesosoma a little coarser and denser than metasoma (Figs 65–66, 71–72). Distribution. China (new record: Xinjiang), Morocco; Portugal; Spain; Italy; Hungary; Greece; Turkey; Russia; Syria; Israel; Palestine; Saudi Arabia; Iraq; Iran; Pakistan; India; Kazakhstan; Kyrgyzstan; Ukraine., Published as part of Li, Ting-Jing, Bai, Yue & Chen, Bin, 2022, A revision of the genus Jucancistrocerus Blüthgen, 1938 from China, with review of three related genera (Hymenoptera: Vespidae: Eumeninae), pp. 401-420 in Zootaxa 5105 (3) on pages 412-415, DOI: 10.11646/zootaxa.5105.3.4, http://zenodo.org/record/6332849, {"references":["de Saussure, H. (1855) s. n. In: Etudes sur la Famille des Vespides 2. La Monographie des Masariens et un supplement la Monographie des Eumeniens. V. Masson, Paris & J. Kessmann, Geneve, pp. 49 - 288, pls. 6 - 14.","Bingham, C. T. (1897) The Fauna of British India, including Ceylon and Burma Hymenoptera. Vol. I. Wasps and Bees. Taylor and Francis, London, 579 pp. https: // doi. org / 10.5962 / bhl. title. 100738","Dalla Torre, K. W. V. (1904) Hymenoptera, Family. Vespidae. Genera Insectorum, 19, 1 - 108.","de Saussure, H. (1863) Melanges Hymenopterologiques II. Memoires de la Societe de Physique d'Histoire Naturelle de Geneve, 17, 171 - 244, pl. 2. https: // doi. org / 10.1080 / 00379271.1863.11755423","Morawitz, F. (1867) Uebersicht der im Gouvernment von Saratow oder um St. Petersburg vorkommenden Odynerus - Arten. Horae Societatis Entomologicae Rossicae, 4, 109 - 144.","Morawitz, F. (1895) Materialien zu einer Vespidenfauna des Russischen Reiches. Horae Societatis Entomologicae Rossicae, 29, 407 - 493.","Morice, F. (1921) Annotated lists of aculeate Hymenoptera (except Heterogyna) and chrysids recently collected in Mesopotamia and north-west Persia. The Journal of the Bombay Natural History Society, 28, 192 - 203.","Castro, L. (1992) Sobre los Eumenidos (Hym., Vespoidea) del valle mediao del Ebro. Zapateri, 1 (2), 21 - 34.","Andre, E. A. (1883) Description de quelques especes nouvelles d'Odyneres de la Sicile. Naturalista Siciliano, 8, 229 - 234.","Gusenleitner, J. (2001) Information on a collection of Eumenidae species in Neuchatel Natural History Museum, which Ed. Andre described in 1883 and 1884 (Hymenoptera, Vespoidea, Eumenidae). Linzer Biologische Beitraege, 33 (1), 211 - 215.","Bluthgen, P. (1938 a) Systematisches Verzeichnis der Faltenwespen Mitteleuropas, Skandinaviens und Englands. Konowia, 16, 270 - 295.","Bluthgen, P. (1939) Beitrage zur Kenntnis der palaarktischen und einiger athiopischer Faltenwespen (Hym. Vespidae). Veroffentlichungen aus dem Deutschen Kolonial - und Ubersee Museum in Bremen, 2 (3), 233 - 267.","Giordani Soika, A. (1943) Eumenini paleartici nuovi o poco noti (Hym.). Estratto dal Bollettino della Societa Veneziana di Storia Naturale e del Museo Civico di Storia Naturale, 3, 1 - 14.","Borsato, W. & Ratti, E. (1999) Antonio Giordani Soika (1913 - 1997): la produzione scientifica. Memorie della Societa Entomologica Italiana, Genova, 77, 43 - 103","Bluthgen, P. (1951) Neue oder bemerkenswerte palaarktische Faltenwespen aus der Zoologischen Staatssammlung in Miinchen (Hymenoptera, Vespidae, Eumenidinae). Mitteilungen der Munchner Entomologischen Gesellschaft, Munich, 41, 166 - 201.","Castro, L. (1986) Contribucion al conocimiento de los Eumenidae (Hym.) del sur de la Peninsula Iberica. Boletin de la Asociacion Espanola de Entomologia, 10, 293 - 301.","Giordani Soika, A. (1951) Risul-tati della spedizione scientifica zoolo-gica in Turchia del Museo nazionale di Praha- 9. Hymenoptera II. Vespidae: Eumeninae. Acta Entomologica Musei Nationalis Pragae, 27, 375 - 386.","van der Vecht, J. & Fischer, F. C. J. (1972) Hymenopterorum Catalogus: Pars 8: Palaearctic Eumenidae. Junk N. V., ' s-Gravenhage, 199 pp.","Gusenleitner, J. (1988) Bemerkenswertes uber Faltenwespen 9. (Hymenoptera, Vespoidea). Nachrichtenblatt der Bayerischen Entomologen, 37 (4), 107 - 113.","Giordani Soika, A. (1952) Sulle caratteristiche biogeografiche della Palestina, Arabia ed Egitto, con un contributo alla conoscenza degli Zethini ed Eumenini della Palestina. Bollettino della Societa Veneziana di Storia Naturale e del Museo Civico di Storia Naturale, 6, 5 - 62.","Bluthgen, P. (1955) Weitere Beitrage zur Synonymie der palaarktischen Faltenwespen (Hym. Vespidae). Mitteilungen der Munchner Entomologischen Gesellschaft, Munich, 44 / 45, 397 - 417.","Giordani Soika, A. (1970) Missione Giordani Soika in Iran 1965 (1), III. Contributo Alla Conoscenza Degli Eumenidi Del Medio Oriente. Parte I. Sistematica. Bollettino del Museo Civico di Storia Naturale di Venezia, 20 / 21, 27 - 183.","Gusenleitner, J. (2006) Uber Eumeninae, aufgesammelt in Pakistan (Hymenoptera: Vespidae). Linzer Biologische Beitrage, 38 (2), 1295 - 1305.","Amolin, A. V., Fateryga, A. V. & Protsenko, Yu. V. (2006) Finds of species of potter-wasps (Hymenoptera, Vespidae, Eumeninae) rare in Odessa Region. Vestnik Zoologii, 40 (2), 180. [in Russian]","Oehlke, J. (2012) Beitrag zur Kenntnis der Faltenwespen - Fauna von Kyrgyzstan (Hymenoptera, Vespidae & Eumenidae). Linzer Biologische Beitrage, 44 (1), 595 - 600."]}

Jucancistrocerus (Eremodynerus) atrofasciatus (Morawitz, 1885) (Figs 1–9) Lionotus atrofasciatus Morawitz, 1885: 162. Pseudepipona atrofasciatus: van der Vecht and Fischer, 1972: 145. Eremodynerus atrofasciatus: Kurzenko, 1977: 559–560; Oehlke, 2012: 598; Tan et al., 2018: 142; Rahmani et al., 2020: 47. Material examined. 3♀ 2♂, China, Xinjiang, Changji Hui Autonomous Prefecture, Roadside near Ulastai, 45.121°N, 90.106°E, 1181 m, 19.VII.2019, Tingjing Li (CNU). Diagnosis. Body length: female 6.7–7.0 mm, male 5.3–5.8 mm; black, with great yellow markings (Figs 1–4), male yellow areas relatively a little smaller; the following parts generally yellow: entire lower frontal area or smaller, clypeus, antennae except some dorsal surfaces, gena, pronotum, a small apical spot of female mesoscutum, scutellum and metanotum except anterior margins, propodeum except middle of posterior surface, tegula, parategula, legs except hind coxa to femoral base, and metasomal segments except black bands of T1–T2 (T1 apically with an unbroken black band and T2 medially with an unbroken black band, and in male T1 basally with a longitudinal black band connecting apical one) (Fig. 1–2, 8–9); clypeus in female moderately punctate and wider than long (1.38×) (Fig. 3), in male almost as wide as long (1.02×) and more sparsely punctate (Fig. 4); clypeus emarginated at apex, clypeal emargination in male (apical width: depth of emargination=4.42) deeper than female that (apical width: depth of emargination=5.42); male A13 hooked and not reaching the apex of A11 (Fig. 7); pronotal carina strongly raised, especially protruding in the middle (Fig. 6); body with coarse punctures; propodeal margin between dorsal and lateral surfaces with tooth-like protuberance (Fig. 5); metasoma coarse and somewhat sparser than mesosoma (Figs 1–2, 8–9), width of T1 2.05× length and narrower than (0.83×) T2. Distribution. China (Inner Mognolia, Xinjiang, Gansu, Qianghai); Kazakhstan; Kyrgyzstan; Iran; Mongolia., Published as part of Li, Ting-Jing, Bai, Yue & Chen, Bin, 2022, A revision of the genus Jucancistrocerus Blüthgen, 1938 from China, with review of three related genera (Hymenoptera: Vespidae: Eumeninae), pp. 401-420 in Zootaxa 5105 (3) on pages 403-404, DOI: 10.11646/zootaxa.5105.3.4, http://zenodo.org/record/6332849, {"references":["Morawitz, F. (1885) Eumenidarum species novae. Horae Societatis Entomologicae Rossicae, 21, 135 - 181.","van der Vecht, J. & Fischer, F. C. J. (1972) Hymenopterorum Catalogus: Pars 8: Palaearctic Eumenidae. Junk N. V., ' s-Gravenhage, 199 pp.","Kurzenko, N. V. (1977) Eumenid wasps (Hymenoptera, Eumenidae) of the Mongolian People's Republic and adjacent regions of China and southern Sibera. Nasekomye Mongolii = Insects of Mongolia, 5, 537 - 582.","Oehlke, J. (2012) Beitrag zur Kenntnis der Faltenwespen - Fauna von Kyrgyzstan (Hymenoptera, Vespidae & Eumenidae). Linzer Biologische Beitrage, 44 (1), 595 - 600.","Tan, J. L., Carpenter, J. M. & van Achterberg, C. (2018) An illustrated key to the genera of Eumeninae from China, with a checklist of species (Hymenoptera, Vespidae). Zookeys, 740, 109 - 149. https: // doi. org / 10.3897 / zookeys. 740.22654","Rahmani, Z., Rakhshani, E. & Carpenter, J. M. (2020) Updated checklist of Vespidae (Hymenoptera: Vespoidea) in Iran. Journal of Insect Biodiversity and Systematics, 6 (1), 27 - 86."]}

Key to the species of Jucancistrocerus and the related genera from China 1. Pretegular keel absent on the pronotum.................................................................... 2 - Pretegular keel present and developed on the pronotum....................................................... 8 2. Tegula inconspicuously, finely and superficially punctate, usually with only two larger translucent spots (Fig. 70)............................................... Eustenancistrocerus (Parastenancistrocerus) amadanensis (de Saussure, 1855) - Tegula with dense, strong, sieve-like translucent punctures (Figs 13, 51, 60)....................................... 3 3. T1 short and distinctly wider than long; transverse edge of T1 lying on the level of horizontal area approximately in the middle of this tergum (Fig. 60)................. Eustenancistrocerus (Eustenancistrocerus) askhabadensis (Radoszkowski, 1886) - T1 elongate and slightly wider than long, or if distinctly wider than long, dorsal surface of propodeum posteriorly with one supercarina extending to lateral side (Figs 5, 14); transverse edge of T1 lower than the horizontal surface and closer to the base of this tergum (Figs 8, 15, 22, 37, 52)............................................... Jucancistrocerus Blüthgen 4 4. Clypeus shallowly emarginated at apex (Figs 3–4, 11); T1 much wider than long and somewhat narrower than (more than 0.8×) T2 (Figs 8, 15)....................................................................................... 5 - Clypeus more deeply emarginated at apex, and tooth-like laterally (Figs 19–20, 34–35, 45–46, 49–50); T1 elongate, a little wider than long and distinctly narrower than (less than 0.8×) T2 (Figs 22, 37, 52).................................. 6 5. Body more coarsely punctate (Figs 1–4, 8–9); apical margin of clypeus emarginated and incised (Figs 3–4); mesoscutum without or with one smaller subapical spot (Figs 1–2)..................... J. (Eremodynerus) atrofasciatus (Morawitz, 1885) - Body less sparsely punctate (Figs 10–12, 15–16); apical margin of clypeus slightly emarginated; mesoscutum medially with one big subapical spot (Fig. 10).............................................. J. (E.) chotanensis (Blüthgen, 1942) 6. Clypeus coarsely punctate in both sexes, and apex relatively narrower (in female apical width: depth of emargination= 2.89, in male apical width: depth of emargination=2.57) (Figs 49–50).......... J. (Jucancistrocerus) tachkensis (Dalla Torre, 1889) - Clypeus less sparsely punctate, and apex wider (in female apical width: depth of emargination=3.32–3.96, in male apical width: depth of emargination=1.99–2.25) (Figs 19–20, 30–31, 34–35, 45–46)........................................... 7 7. Both female and male clypeus widely and shallowly emarginated at apex (Figs 34–35, 45–46); male A13 hooked backward not reaching the base of A11 (Fig. 39); volsella (Fig. 40) apically narrower and sharper..... J. (J.) angustifrons (Kostylev, 1940) - Both female and male clypeus more narrowly and deeply emarginated at apex (Figs 19–20, 30–31); male A13 hooked backward extending to the base of A11 (Fig. 24); volsella (Fig. 25) apically wider and blunter...... J. (J.) alashanicus Kurzenko, 1977 8. Transverse edge of T1 lying below the level of horizontal surface of this tergum (Fig. 88); T3 much coarser in the distal portion than at the base of T2 (Fig. 89); clypeus truncate and narrow at apex (83–84)...................................................................................................... Tachyancistrocerus schmidti (Kokujev, 1912) - Transverse edge of T1 lying at the level of the horizontal surface (Fig. 77); punctures on T3 not coarser than those of T2 (Fig. 79); clypeus deeply and widely emarginted at apex (Fig. 74)............................................................................................. Stenancistrocerus (Paratropancistrocerus) transcaspicus (Kostylev, 1934), Published as part of Li, Ting-Jing, Bai, Yue & Chen, Bin, 2022, A revision of the genus Jucancistrocerus Blüthgen, 1938 from China, with review of three related genera (Hymenoptera: Vespidae: Eumeninae), pp. 401-420 in Zootaxa 5105 (3) on pages 402-403, DOI: 10.11646/zootaxa.5105.3.4, http://zenodo.org/record/6332849, {"references":["de Saussure, H. (1855) s. n. In: Etudes sur la Famille des Vespides 2. La Monographie des Masariens et un supplement la Monographie des Eumeniens. V. Masson, Paris & J. Kessmann, Geneve, pp. 49 - 288, pls. 6 - 14.","Radoszkowski, O. (1886) Faune hymenopterologique Transcaspienne. Horae Societatis Entomologicae Rossicae, Rossicae, XX, 3 - 56.","Morawitz, F. (1885) Eumenidarum species novae. Horae Societatis Entomologicae Rossicae, 21, 135 - 181.","Bluthgen, P. (1942) Neue palaarktische Faltenwespen (Hymenoptera, Vespidae, Eumonidinae). Mitteilungen aus dem Zoologischen Museum in Berlin, 25, 300 - 322.","Dalla Torre, K. W. V. (1889) Hymenopterologische Notizen. Wiener Entomologische Zeitung, 8, 124 - 125. https: // doi. org / 10.5962 / bhl. part. 20036","Kostylev, G. (1940) Especes nouvelles et peu connues de Vespides, d'Eumenides et de Masarides palearctiques (Hymenoptera). II. Bulletin de la Societe des naturalistes de Moscou, Section biologique, New Series, 49, 24 - 42.","Kurzenko, N. V. (1977) Eumenid wasps (Hymenoptera, Eumenidae) of the Mongolian People's Republic and adjacent regions of China and southern Sibera. Nasekomye Mongolii = Insects of Mongolia, 5, 537 - 582."]}

Jucancistrocerus (Eremodynerus) chotanensis (Blüthgen, 1942) (Figs 10–16) Eremodynerus chotanensis Blüthgen, 1942: 317; Giordani Soika, 1970: 133; van der Vecht and Fischer, 1972: 76; Tan et al., 2018: 142. Material examined. 1♀, China, Xinjiang, Bayinguoleng Mongolian Autonomous Prefecture, Ruoqiang County, Lop Nor, Hongliujing, 30.V.2010, Zhaohui Luo. Notes. This species J. (E.) chotanensis Blüthgen, 1942 was firstly found and described based on one male specimen from China, Xinjiang, Chotan. Before this study, no other specimens have been added to the record. In our collections, one female specimen was collected from Xinjiang, Lop Nor, Hongliujing which is not far from the collection range where the type specimen was collected. The female (Figs 10–16) is very similar to the male, which was recorded by Blüthgen (1942). Meanwhile, the species is very similar to the above species J. (E.) atrofasciatus with almost the same color pattern (Figs 1–16). They can mainly be separated from each other by the following character combination: body of J. (E.) chotanensis (Figs 10–16) with sculpture distinctly sparser (Figs 1–9), its propodeal margin between dorsal and lateral surfaces without or with indistinct tooth-like protuberance (Fig. 14), clypeal emargination relatively shallower, and with one big subapical spot in middle of the mesoscutum. Female (first description): Body length 7.2 mm; black, with great yellow markings (Figs 10–16); the following parts generally yellow: almost whole frons except the black spot above antenna, clypeus, antenna except apical and dorsal surfaces, gena, pronotum, a big subapical longitudinal spot of mesoscutum, scutellum and metanotum except anterior margins, propodeum except middle of posterior surface, tegula, parategula, legs except hind coxa to femoral base, and metasomal segments except black bands of T 1– T 2 (T 1 apically with an unbroken black band and T 2 medially with an unbroken black band). Head moderately punctate (sparser than J. (E.) atrofasciatus); clypeus wider than long (1.30×), and slightly emarginated at apex (Fig 11). Mesosoma a little coarser than head (Fig. 10); transverse pronotal carina strongly raised, somewhat protruding in the middle (Fig. 12); propodeal margin between dorsal and lateral surfaces without or with indistinct tooth-like protuberance (Fig. 14); metasoma almost as coarse as head, width of T 1 1.87× length and narrower than (0.82×) T 2. Distribution. China (Xinjiang)., Published as part of Li, Ting-Jing, Bai, Yue & Chen, Bin, 2022, A revision of the genus Jucancistrocerus Blüthgen, 1938 from China, with review of three related genera (Hymenoptera: Vespidae: Eumeninae), pp. 401-420 in Zootaxa 5105 (3) on page 404, DOI: 10.11646/zootaxa.5105.3.4, http://zenodo.org/record/6332849, {"references":["Bluthgen, P. (1942) Neue palaarktische Faltenwespen (Hymenoptera, Vespidae, Eumonidinae). Mitteilungen aus dem Zoologischen Museum in Berlin, 25, 300 - 322.","Giordani Soika, A. (1970) Missione Giordani Soika in Iran 1965 (1), III. Contributo Alla Conoscenza Degli Eumenidi Del Medio Oriente. Parte I. Sistematica. Bollettino del Museo Civico di Storia Naturale di Venezia, 20 / 21, 27 - 183.","van der Vecht, J. & Fischer, F. C. J. (1972) Hymenopterorum Catalogus: Pars 8: Palaearctic Eumenidae. Junk N. V., ' s-Gravenhage, 199 pp.","Tan, J. L., Carpenter, J. M. & van Achterberg, C. (2018) An illustrated key to the genera of Eumeninae from China, with a checklist of species (Hymenoptera, Vespidae). Zookeys, 740, 109 - 149. https: // doi. org / 10.3897 / zookeys. 740.22654"]}

Eustenancistrocerus (Eustenancistrocerus) askhabadensis (Radoszkowski, 1886) (Figs 56–64) Odynerus askhabadensis Radoszkowski, 1886: 47, pl. 11 fig. 49, female, male (in subgenus Leionotus). Odynerus leucospilus Cameron, 1909: 133, female (in subgenus Ancistrocerus); Meade-Waldo, 1914: 405 (syn.: O. quettaensis). Odynerus quettaensis Cameron, 1909: 133, female (in subgenus Ancistrocerus); Meade-Waldo, 1914: 405 (syn. of O. leucospilus). Odynerus sarykorum Kostylev, 1929: 111, fig. 1, female (in subgenus Lionotus). Stenancistrocerus askhabadensis: Blüthgen, 1939: 253–256 (syns.: sarykorum, quettaensis and leucospilus;? also = Odynerus tegularis Morawitz, 1895, var.). Eustenancistrocerus askhabadensis: Blüthgen, 1957: 165 (designation of lectotype); 1966: 202; Giordani Soika, 1970: 97; van der Vecht and Fischer, 1972: 59 (cat.); Kurzenko, 1977: 551; Rahmani et al., 2020: 43. Material examined. 1♂, China, Xinjiang, Bole County, Queshiyu, 14.VII.2015, Zhaohui Luo. Diagnosis. Body black, with the following yellow markings (Figs 56–64): clypeus, a band along lower inner margin of eye to sinus connecting big frontal and interantennal spot, antenna except dorsal surfaces of A3-A11, mandible except apex, a small band of gena, pronotum except posterior apex, two large spots of scutellum, narrow band of metanotum laterally, tegula, parategula, lateral-dorsal surface of propodeum, legs almost, lateral side connecting apical band of T1, two big lateral spots at base connecting apical band of T2 and apical bands of T3–T5 or T3–T6, apical half of S2 and apical interrupted band of S3–S5; body coarsely punctate, those on head relatively sparser than those on remaining parts; clypeus (Fig. 57) a bit wider than long, moderately punctate and apically with deep and rounded emargination; male A13 elongated and hooked (Fig. 64); propodeal margin between dorsal and lateral surfaces with distinct tooth-like protuberance; punctures on T1 a little coarser than T2, punctures on apexes of T2–T3 bigger and denser than those at base, each of metasomal segments T2–T3 apically with a row of punctures (Figs 62–63). Distribution. China (new record: Xinjiang); Iran; Pakistan; Turkmenistan; Mongolia., Published as part of Li, Ting-Jing, Bai, Yue & Chen, Bin, 2022, A revision of the genus Jucancistrocerus Blüthgen, 1938 from China, with review of three related genera (Hymenoptera: Vespidae: Eumeninae), pp. 401-420 in Zootaxa 5105 (3) on page 412, DOI: 10.11646/zootaxa.5105.3.4, http://zenodo.org/record/6332849, {"references":["Radoszkowski, O. (1886) Faune hymenopterologique Transcaspienne. Horae Societatis Entomologicae Rossicae, Rossicae, XX, 3 - 56.","Cameron, P. (1909) Some Odynerinae of the southwest United States. Pomona College Journal of Entomology, 1, 122 - 134.","Geoffrey Meade-Waldo, M. A. & Claude Morley, F. Z. S. (1914) Li. - Notes and synonymy of Hymenoptera in the collection of the British Museum. Annals and Magazine of Natural History, Series 8, 14 (83), 402 - 410. https: // doi. org / 10.1080 / 00222931408693594","Kostylev, G. (1929) Drei neue Odynerus - Arten aus Turkestan. Revue Russe d'Entomologie, 23 (1 - 2), 111 - 114.","Bluthgen, P. (1939) Beitrage zur Kenntnis der palaarktischen und einiger athiopischer Faltenwespen (Hym. Vespidae). Veroffentlichungen aus dem Deutschen Kolonial - und Ubersee Museum in Bremen, 2 (3), 233 - 267.","Morawitz, F. (1895) Materialien zu einer Vespidenfauna des Russischen Reiches. Horae Societatis Entomologicae Rossicae, 29, 407 - 493.","Bluthgen, P. (1957) Vespidae and Eumenidae. In: Bytinski-Salz, H., Coleoptera and Hymenoptera from a journey through Asia Minor II. Descriptions of new species and forms. Revue de la Faculte des Sciences de l'Universite d'Istanbul, Series B, 22, pp. 163 - 169.","Giordani Soika, A. (1970) Missione Giordani Soika in Iran 1965 (1), III. Contributo Alla Conoscenza Degli Eumenidi Del Medio Oriente. Parte I. Sistematica. Bollettino del Museo Civico di Storia Naturale di Venezia, 20 / 21, 27 - 183.","van der Vecht, J. & Fischer, F. C. J. (1972) Hymenopterorum Catalogus: Pars 8: Palaearctic Eumenidae. Junk N. V., ' s-Gravenhage, 199 pp.","Kurzenko, N. V. (1977) Eumenid wasps (Hymenoptera, Eumenidae) of the Mongolian People's Republic and adjacent regions of China and southern Sibera. Nasekomye Mongolii = Insects of Mongolia, 5, 537 - 582.","Rahmani, Z., Rakhshani, E. & Carpenter, J. M. (2020) Updated checklist of Vespidae (Hymenoptera: Vespoidea) in Iran. Journal of Insect Biodiversity and Systematics, 6 (1), 27 - 86."]}

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. 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., Published as part of Li, Ting-Jing, Bai, Yue & Chen, Bin, 2022, A revision of the genus Jucancistrocerus Blüthgen, 1938 from China, with review of three related genera (Hymenoptera: Vespidae: Eumeninae), pp. 401-420 in Zootaxa 5105 (3) on pages 408-410, DOI: 10.11646/zootaxa.5105.3.4, http://zenodo.org/record/6332849, {"references":["Dalla Torre, K. W. V. (1889) Hymenopterologische Notizen. Wiener Entomologische Zeitung, 8, 124 - 125. https: // doi. org / 10.5962 / bhl. part. 20036","Andre, E. A. (1884) s. n. In: Species des Hymenopteres d'Europe & Algerie 2. Andre and Andre, Beaune, pp. 405 - 831.","Kostylev, G. (1940) Especes nouvelles et peu connues de Vespides, d'Eumenides et de Masarides palearctiques (Hymenoptera). II. Bulletin de la Societe des naturalistes de Moscou, Section biologique, New Series, 49, 24 - 42.","Bluthgen, P. (1939) Beitrage zur Kenntnis der palaarktischen und einiger athiopischer Faltenwespen (Hym. Vespidae). Veroffentlichungen aus dem Deutschen Kolonial - und Ubersee Museum in Bremen, 2 (3), 233 - 267.","Bluthgen, P. (1955) Weitere Beitrage zur Synonymie der palaarktischen Faltenwespen (Hym. Vespidae). Mitteilungen der Munchner Entomologischen Gesellschaft, Munich, 44 / 45, 397 - 417.","Giordani Soika, A. (1970) Missione Giordani Soika in Iran 1965 (1), III. Contributo Alla Conoscenza Degli Eumenidi Del Medio Oriente. Parte I. Sistematica. Bollettino del Museo Civico di Storia Naturale di Venezia, 20 / 21, 27 - 183.","van der Vecht, J. & Fischer, F. C. J. (1972) Hymenopterorum Catalogus: Pars 8: Palaearctic Eumenidae. Junk N. V., ' s-Gravenhage, 199 pp.","Li, T. S. (1985) Economic insect fauna of China. Fasc. 30. Hymenoptera: Vespoidea. Science Press, Beijing, 159 pp.","Gusenleitner, J. (2013) Die Gattungen der Eumeninae im Nahen Osten, in Nordafrika und in Arabien (Hymenoptera: Vespidae: Eumeninae). Linzer Biologische Beitrage, 45 (1), 5 - 107.","Gusenleitner, J. (1973) Beitrage zur Kenntnis der Fauna Afghanistans (Vespoidea, Hymenoptera). Acta Musei Moraviae, 56 / 57, 315 - 334."]}

Megaodynerus bimaculus Bai, Chen & Li, sp. n. (Figs 77���84) Material examined. Holotype, 1♀, China, Hunan Province, Hengshan Mountain, 27.289��N, 112.711��E, 1023 m, VII.1985, the collector is unspecified (CNU). Diagnosis. This species is distinguished from the known species Megaodynerus maximus Gusenleitner, 2012 by the following character combination: clypeus slightly wider than long (about 1.1 times) with its basal half yellow (Fig. 78), punctures on basal part of T1 much coarser and obviously reticulate, and T2 apically with two lateral spots (Fig. 83). Description. Female (Fig. 77). Body length 16.2 mm, forewing length 14.5 mm; forns with not very thick brown hair, about a length which corresponds to the diameter of an ocelli; mesosoma covered with strongly short and thick, uniform in length, brown setae except mesopleuron and propodeum lateral surfaces with longer and light setae, abdomen with microscopic pubescence; black, with the following parts yellow: basal half of clypeus, antenna ventrally except A4���A12, interantennal spot, small spots on gena, anterior spots on the pronotum medially, posterior apex of tegula, fore femur and tibia ventrally, a wide apical band of T1 widening inwards and medially with a narrow gap, and a wide apical band and two lateral spots of T2 (apical band of T2 brownish yellow); wings brown, purple reflective. Head. In frontal view, head subcircular, about 1.1 times as wide as long (Fig. 78); vertex (Fig. 79) with two big connecting cephalic foveae, close to each other, bearing dense pubescence, area surrounding foveae obviously depressed; distance from posterior ocellus to occipital carina nearly twice the distance from posterior ocellus to inner eye margin; vertex with moderate punctures; gena with sparse punctures; frons with coarse punctures and interspaces slightly reticulate; occipital carina complete along gena and developed almost like a lamella laterally; clypeus (Fig. 78) moderately convex, with sparse and small punctures, interspaces microscopically streaked at apex, about 1.1 times as wide as long, apical margin slightly emarginated; clypeal width: apical width = 1.83: 0.66, apical width longer than interantennal distance; mandible with four prominent teeth. Mesosoma. Mesosoma longer than wide in dorsal view (Fig. 81); pronotum with sparse punctures and sparser than vertex; pronotal carina strongly raised and complete; tegula with minute punctures; mesoscutum weakly convex, about 1.1 times as long as wide, posterior apex with two deep longitudinal furrows (Fig. 81), basally with dense punctures and apically with slightly sparser punctures; scutellum weakly convex, in lateral view at the same level of mesoscutum, medially with a shallow longitudinal furrow, basally with sparse punctures and apically with dense punctures; metanotum convex, slightly higher than scutellum, and sloping down to apical margin, medially with a wide longitudinal furrow, metanotum with coarser, denser punctures, basally strongly carinate and reticulate (Figs 81���82); mesopleuron dorsally with moderate punctures mixed with oblique striae, and ventrally with denser punctures, coarser and larger than pronotum; metapleuron with finely striae extending to whole lower side of lateral surface of propodeum(Fig. 80), upper side of lateral surface similar to its dorsal surface; propodeum (Figs 80���82) dorsally with large and coarse flat���bottomed punctures, strongly carinate and reticulate, medially excavated and the basal fovea about 0.3 times of the length of the median carina which runs from the fovea to apical margin; dorsal and posterior surfaces connected by reticulate car; posterior and lateral surfaces connected by bluntly angulate, posterior surface concave and coriaceous, densely with fine punctures and oblique striae, propodeal carina widened at apical margin. Metasoma. T1 (Fig. 83) slightly wider than long (1.3 times); T2 (Fig. 83) about 1.1 times as wide as long; T1 with extremely large, dense and deep punctures, strongly carinate and reticulate, at the transition from the horizontal surface to the anterior vertical surface and on the sides, with longitudinal furrow on the horizontal surface medially; T2 with thin apical lamella, T2 with small and sparse punctures; S2 (Fig. 84) strongly concave at base, and with sparse and small punctures sparser and smaller than T2; T3 with barely apical lamella, T3���T6 punctures denser and coarser than T2; S1 basally with slight striae, the broad end part with a strong horizontal striae; S3���S4 surface coarse, punctures on S3���S4 denser than S2, S5���S6 surface coarse, with extremely small punctures. Male. Unknown. Distribution. China (Hunan). Etymology. The specific name is derived from two Latin words: bi- (=two) and macula (= spot), referring to the two lateral spots on T2., Published as part of Bai, Yue, Chen, Bin & Li, Ting-Jing, 2021, Two newly recorded genera Malayepipona Giordani Soika and Megaodynerus Gusenleitner, with eight new species from China (Hymenoptera, Vespidae, Eumeninae), pp. 371-391 in Zootaxa 5060 (3) on pages 389-391, DOI: 10.11646/zootaxa.5060.3.4, http://zenodo.org/record/5635877, {"references":["Gusenleitner, J. (2012) Bemerkenswerte Faltenwespen-Funde aus der orientalischen Region Teil 6 (Hymenoptera: Vespidae, Eumeninae). Linzer Biologische Beitrage, 44 (2), 1045 - 1052."]}

Malayepipona flaviclypeata Bai, Chen & Li, sp. n. (Figs 10–21) Material examined. Holotype, 1♀, China, Guangxi Zhuang Autonomous Region, Guilin City, Longsheng County, Sanmen Town, Huaping Nature Reserve, 25.624°N, 109.916°E, 740 m, 16.VII.2018, Xue Zhang (CNU); paratype: 1♂, same data as holotype. Diagnosis. This species is easily distinguished from all other species of Malayepipona by the following character combination: wings dark brown, lightly infuscate and purple reflective (Figs 10–11), in both sexes clypeus wholly yellow (Figs 12–13) and vertex with two cephalic foveae (Figs 14–15), and T2 with indistinct apical lamella, just visible in lateral view (Fig. 19). Description. Female (Fig. 10). Body length 13.5 mm, forewing length 14.5 mm; body covered with short, silver setae except lower part of propodeum with dense long silver setae; black, with the following parts orange–yellow: clypeus, basal inner margin of mandible, scape ventrally, interantennal spot, pronotum medially and brown narrow band with branches extending along posterodorsal margin of pronotum, spots on inner and upper side of fore tibia, apical bands of T1–T2; inner part of tegula and parategula dark brown, outer part of tegula dark ferruginous; wings dark brown, lightly infuscate, purple reflective. Head. In frontal view, head subcircular, about 1.1 times as wide as long (Fig. 12); vertex with two cephalic foveae somewhat bigger than maximum punctures on vertex, bearing dense pubescence, area surrounding foveae slightly depressed and finely punctate, distance between foveae as long as distance between posterior ocelli (Fig. 14); distance from posterior ocellus to apical margin of vertex about 1.9 times of the distance from posterior ocellus to inner eye margin; vertex and gena coarsely, moderately with punctures, interspaces with distinct small punctures (Fig. 14); punctures of frons coarser than those of vertex and gena, interspaces reticulate (Figs 12); gena slightly narrower than eye, occipital carina complete, along gena; in frontal view, distance between inner eye margins at vertex as long as that at clypeus; clypeus (Fig. 12) densely punctate and sparser than frons, about 1.1 times as wide as long, in lateral view convex at basal half, apical margin strongly emarginate medially and U-shaped, laterally forming a sharp tooth; clypeal width: emargination width = 1.78: 0.41; mandible with four teeth, the first tooth quite short and with inner side slightly concave, second and third teeth trapezoid with inner side produced, the outer one pointed apically (Fig. 12); A1 about 3.6 times as long as its maximum width, curved; A3 about 1.7 times longer than wide, A4 wide, A5–A7 as wide as long, A8–A11 wider than long, A12 bullet–shaped, as long as its basal width. Mesosoma. Mesosoma longer than wide in dorsal view (Fig. 17); pronotum coarsely, moderately punctate dorsally and similar to those on vertex, laterally punctures denser and interspaces slightly reticulate, interspaces of pronotum with distinct small punctures; pronotal carina raised and complete; mesoscutum weakly convex, slightly longer than wide between tegulae, posterior apex with two deep longitudinal furrow (Fig. 17), punctures on mesoscutum similar to those on pronotum; scutellum slightly convex, in lateral view at the same level of mesoscutum, punctures on scutellum similar to those on mesoscutum; metanotum weakly convex, sloping down to apical margin, punctures on metanotum larger than mesoscutum, strongly carinate and reticulate; mesepisternum with dense, large, flat–bottomed punctures, larger than pronotum; metapleuron dorsally with several punctures and mostly impunctate, ventrally with several shallow small punctures (Fig. 16); propodeum (Figs 16–18) dorsally with irregular punctures and coarser than mesepisternum, strongly carinate and reticulate, without a pair of blunt teeth behind metanotum, medially excavated and the basal fovea with extending propodeal carina medially, the basal fovea about 0.2 times of the length of the median carina which runs from the fovea basally to the apical margin; dorsal and posterior surfaces connected by blunt edge, posterior and lateral surfaces connected by bluntly angulate, laterally with dense, large, flat-bottomed punctures, the depth of the punctures on the lateral surfaces decreasing from upper to bottom; outer part of posterior surface smooth and coriaceous and inner part densely with oblique striae which runs from propodeal carina, longitudinally with irregular and shallow depression along propodeal carina, widened at the basal fovea medially and at apical margin. . Metasoma. T1 (Fig. 19) about 2.1 times as wide as long, and basally truncate and weakly raised edge, without carina; anterior vertical surface weakly convex, with sparse punctures; T2 (Fig. 19) with unobvious apical lamella, just visible in lateral view, T2 about 1.1 times as wide as long; S2 (Fig. 20) in lateral view slightly convex from base to apical margin, in frontal view weakly concave at basal; T1 with moderate punctures coarser and denser than punctures on T2; punctures on S2 a bit sparser than to those on T2, punctures on T3–T4 denser and smaller than on T2, punctures on S3–S5 and T5 smaller than on T4, T6 with minute punctures sparser than S6. Male (Fig. 11). Body length 13.5 mm, forewing length 14.0 mm. Sculpture, punctuation, setae, and coloration as in female except as follows: mandible (Fig. 13) mostly yellow, two yellow spots on pronotum medially smaller than in female; orange–yellow spots on inner and upper side of middle tibia and femur; head about 1.2 times as wide as long in frontal view; distance between cephalic foveae about 0.9 times as long as distance between posterior ocelli (Fig. 15); distance from posterior ocellus to apical margin of the vertex about 2.1 times of the distance from posterior ocellus to inner eye margin; eye strongly swollen laterally; in frontal view, distance between inner eye margins at vertex about 1.1 times that at clypeus; gena narrow, in lateral view about 0.6 times as wide as eye; clypeal punctures with sparser than in female, about 1.1 times as wide as long (Fig. 13); clypeal width: emargination width = 1.61: 0.48; antenna (Fig. 21) slender than in female, A1 about 3 times as long as its maximum width; A3 about 2 times as long as wide, A4–A7 slightly longer than wide, A8–A9 about wider than long, A10 longer than wide, A13 elongate, curved, backward reaching apical margin of A10, about twice as long as its basal width; scutellum with deep longitudinal furrow medially; metapleuron dorsally deep depressions, and with several punctures and strong striae; T7 almost without punctures, coriaceous, S7 with shallow punctures larger than T6. Distribution. China (Guangxi). Etymology. The specific name is derived from two Latin words: flavus (= yellow) and clypeus (= clypeus), referring to the yellow clypeus in males and females.

Key to species of genus Malayepipona (modified from the key of Nguyen 2020) 1. S2 strongly convex in basal half................................................... M. assamensis Giordani Soika - S2 nearly flat or slightly convex at base, then slightly and gradually convex toward apical margin..................... 2 2. T2 without apical lamella............................................................................... 3 - T2 with apical lamella................................................................................. 7 3. Upper part of propodeum usually with a pair of relatively blunt teeth just behind metanotum (Figs. 48, 71).............. 4 - Upper part of propodeum normal, without a pair of teeth just behind metanotum................................... 5 4. Wings dark brown, strongly infuscate, making apical dark spot of forewing marginal cell inconspicous (Fig. 68); female clypeus with separated spots (Fig. 69); area between cephalic foveae on vertex punctate (Fig. 70).............................................................................................. M. clypeata Nguyen & Carpenter, 2012 - Wings brown, slightly infuscate, apical dark spot of forewing marginal cell conspicuous (Figs 40���41); female clypeus wholly ferruginous and male clypeus yellow (Figs 42���43); area between cephalic foveae on female vertex smooth, shiny................................................................................ M. nigricans Bai, Chen & Li, sp. nov. 5. Area surrounding foveae distinctly depressed, smooth and shiny, making foveae obvious (Fig. 3); head and mesosoma largely brown mixed with ferruginous and yellow (Fig. 1)............................... M. brunnea Bai, Chen & Li, sp. nov. - Area surrounding foveae not depressed, smooth and shiny, making foveae inconspicuous (fig. 9 in Nguyen, 2020)); head and mesosoma obviously different from above................................................................. 6 6. Punctures on head and mesosoma smaller and weaker, interspaces between punctures not carinate; pronotal carina not produced at humeral angle, round; metasomal terga shiny, T 1 in dorsal view less than 1.5 times as wide as long, T2 with weaker sparser punctures.................................................................. M. pagdeni Giordani Soika, 1993 - Punctures on head and mesosoma large and coarse, interspaces between punctures reticulate; pronotal carina strongly produced at humeral angle; metasomal terga dull, T 1 in dorsal view more than twice as wide as long, T2 with strong dense punctures.................................................................................. M. fincta Nguyen, 2020 7. S2 nearly flat at base, then slightly convex to apical margin (Fig. 39)............................................ 8 - S2 concave or slightly convex at base, then slightly convex to apical margin....................................... 9 8. Clypeus sparsely punctate (Fig. 33); T2 with short apical lamella, T3 without apical lamella (Fig. 38).......................................................................................... M. maculosa Bai, Chen & Li, sp. nov. - Clypeus densely punctate and coarser (Fig. 2 in Nguyen & Carpenter 2013); T2 with longer apical lamella, T3 with short apical lamella (Fig. 5 in Nguyen & Carpenter 2013)...................................... M. malickyi (Gusenleitner, 2010) 9. T2 with short apical lamella, T3���T5 without apical lamella................................................... 10 - T2 with longer apical lamella, T3 with short apical lamella................................................... 13 10. Female head with long dense setae (Fig. 5 in Gusenleitner 2012)......................... M. visenda Gusenleitner, 2012 - Female head with shorter setae (Figs 61���62, 12���15, 33���34)................................................... 11 11. Wings dark brown, strongly infuscate (Figs 10���11); T2 with inconspicuous apical lamella, just visible in lateral view (Fig. 19)................................................................... M. flaviclypeata Bai, Chen & Li, sp. nov. - Wings brown, not infuscate (Figs 22���23, 51, 60); T2 with obvious apical lamella (Figs. 30, 58, 66)................... 12 12. Clypeus densely coarsely punctate; apical tooth of mandible pointed (fig. 1 in Nguyen 2020); pronotal carina strongly produced at humeral angle; female head and mesosoma wholly black (Figs 1���4 in Nguyen 2020); forewing with dark spot at apex of marginal cell...................................................................... M. bidoup Nguyen, 2020 - Clypeus sparsely punctate; apical tooth of mandible rounded (Fig. 61); pronotal carina not produced at humeral angle, round (Fig. 64); female head and mesosoma with yellow marks (Figs, 60���61, 64); forewing without dark spot at apex of marginal cell................................................................... M. triangula Bai, Chen & Li, sp. nov. 13. Border between anterior and dorsal surfaces of T1 slightly raised, with faint edge (Fig. 30).......................... 14 - Border between anterior and dorsal surfaces of T1 bluntly angulate, with obvious edge (Fig. 58)...................... 15 14. Female clypeus black, laterally with two thick longitudinal yellow strips, T4 without apical lamella.......................................................................................... M. seomyty Nguyen & Carpenter, 2013 - Female clypeus entirely brownish yellow or with one basal transverse yellow band and two connected yellow spots at apex (Figs 24���25), T4 with short apical lamella..................................... M. lamellata Bai, Chen & Li, sp. nov. 15. Clypeus densely coarsely punctate; posterior surface of propodeum with scattered shallow punctures; female clypeus entirely black; T1���T2 with apical yellow bands, T3���T5 without bands...................... M. furva Nguyen & Carpenter, 2013 - Clypeus with sparser punctures medially; posterior surface of propodeum with dense thin striae, mixed with minute punctures (Fig. 54); female clypeus black with two yellow lateral spots at base (Fig. 52); T1���T5 with apical yellow bands (widest on T2 and narrowest on T5) (Fig. 58)........................................... M. sparsipuncta Bai, Chen & Li, sp. nov., Published as part of Bai, Yue, Chen, Bin & Li, Ting-Jing, 2021, Two newly recorded genera Malayepipona Giordani Soika and Megaodynerus Gusenleitner, with eight new species from China (Hymenoptera, Vespidae, Eumeninae), pp. 371-391 in Zootaxa 5060 (3) on pages 372-373, DOI: 10.11646/zootaxa.5060.3.4, http://zenodo.org/record/5635877, {"references":["Nguyen, L. T. P. (2020) Two new species of the genus Malayepipona Giordani Soika (Hymenoptera: Vespidae: Eumeninae) from Vietnam, with updated key to all recognised species. Raffles Bulletin of Zoology, 68, 112 - 117.","Giordani Soika, A. (1993) Di alcuni nuovi eumenidi della regione orientale (Hym. Vespoidea). Bollettino del Museo Civico di Storia Naturale di Venezia, 42, 151 - 163.","Nguyen, L. T. P. & Carpenter, J. M. (2013) Taxonomic notes on the species of the genus Malayepipona Giordani Soika (Hymenoptera: Vespidae: Eumeninae) from Northern Vietnam, with description of three new species. Raffles Bulletin of Zoology, 61 (2), 727 - 734.","Gusenleitner, J. (2010) Bemerkenswerte Faltenwespen-Funde aus der orientalischen Region Teil 5. Linzer Biologische Beitrage, 42 (1), 695 - 709.","Gusenleitner, J. (2012) Bemerkenswerte Faltenwespen-Funde aus der orientalischen Region Teil 6 (Hymenoptera: Vespidae, Eumeninae). Linzer Biologische Beitrage, 44 (2), 1045 - 1052."]}

Genus Megaodynerus Gusenleitner, 2012 Megaodynerus Gusenleitner, 2012: 1048, genus. Type species Megaodynerus maximus Gusenleitner, 2012, by original designation. Diagnosis. This genus is related to the genus Symmorphus, sharing with it the following characters: elongate body and dorsal surface of T1 with a longitudinal furrow on the horizontal area. It can be separated from the related genus by the following character combination: larger body (known species are more than 16 mm), clypeus (Fig. 78) broad, and convex at basal half, apical margin slightly emarginated, T1 (Fig. 83) basally without a transverse raised carina, and broad part of S1 with strong horizontal striae (Fig. 84). Distribution. Oriental Region., Published as part of Bai, Yue, Chen, Bin & Li, Ting-Jing, 2021, Two newly recorded genera Malayepipona Giordani Soika and Megaodynerus Gusenleitner, with eight new species from China (Hymenoptera, Vespidae, Eumeninae), pp. 371-391 in Zootaxa 5060 (3) on pages 388-389, DOI: 10.11646/zootaxa.5060.3.4, http://zenodo.org/record/5635877, {"references":["Gusenleitner, J. (2012) Bemerkenswerte Faltenwespen-Funde aus der orientalischen Region Teil 6 (Hymenoptera: Vespidae, Eumeninae). Linzer Biologische Beitrage, 44 (2), 1045 - 1052."]}

Malayepipona lamellata Bai, Chen & Li, sp. n. (Figs 22���31) Material examined. Holotype, 1♀, China, Guizhou Province, Qiannan Prefecture, Maolan Nature Reserve, Dongdai Village, 25.311��N, 107.936��E, 736 m, 21.VI.2015, Zhenxia Ma (CNU); paratype: 1♀, China, Guangxi Zhuang Autonomous Region, Tianlin County, Cenwang Laoshan, County Road 794, 24.474��N, 106.383��E, 1554 m, 26.VII.2014, Xiang Li (CNU). Diagnosis. This species resembles M. seomyty Nguyen & Carpenter 2013 from Vietnam, but it differs from the related species and all other species of Malayepipona by the following character combination: distance from posterior ocelli to apical margin of the vertex longer, about 2.0 times of the distance from posterior ocelli to inner eye margin (Fig. 26), T4 with thin apical lamella (Fig. 30), and clypeus largely to wholly yellow (Figs 24���25). Description. Female (Figs. 22���23). Body length 10.5���11.0 mm, forewing length 10.5 mm; body covered with short, silver setae except lower part of propodeum with dense, long silver setae; black, with the following parts yellow: clypeus largely to wholly yellow (Figs. 24-25), mandible partly, whole inner eye margin or narrow band along inner eye margin extending from bottom of frons to lower ocular sinus (Fig. 25), lower part of frons or interantennal spot, scape and pedicel, gena or small spot on gena, dorsal base of pronotum and with branches extending along posterodorsal margin of pronotum, tegula, parategula, apical margin of scutellum or with two lateral spots, basal margin of metanotum or with two lateral spots, posterodorsal spot of mesopleuron, legs except basal margins of femora or spots on apical margins of femora, apical bands of T1���T5 (widest on T2 and narrowest on T3���T5) and apical margins of S2-S5; wings brown, marginal cell of forewing without an apical dark spot. Head. In frontal view, head subcircular, about 1.1 times as wide as long (Fig. 24); vertex with two small cephalic foveae as big as maximum punctures on vertex, bearing dense pubescence, interspace between foveae slightly depression, distance between foveae about 0.7 times as long as distance between posterior ocelli (Fig. 26); distance from posterior ocellus to apical margin of the vertex about 2.0 times the distance from posterior ocellus to inner eye margin; vertex, gena and frons with coarse punctures, interspaces slightly reticulate, interspaces on frons narrower (Figs 24���26); gena slightly narrower than eye, occipital carina complete along gena; in frontal view, distance between inner eye margins at vertex about 1.2 times that at clypeus; clypeus about 1.2 times as wide as long, densely punctate, punctures sparser than those on frons, in lateral view convex at basal half, apical margin shallowly emarginated medially and curved, laterally forming a short tooth (Figs 24���25); clypeal width: emargination width = 1.32: 0.37; mandible with four teeth, the first tooth with inner side slightly concave, the second and the third with inner side slightly produced to form wavy, the outer one pointed apically; A1 about 3.3���3.8 times as long as its maximum width, curved; A3 about 1.3���1.4 times longer than wide, A4���A11 wider than long, A12 bullet���shaped, as long as its basal width. Mesosoma. Mesosoma longer than wide in dorsal view (Fig. 28); pronotum, mesoscutum and scutellum coarsely, densely punctate and reticulate, punctures slightly larger than vertex and gena (Fig. 28); pronotal carina raised and complete, mesoscutum weakly convex, slightly longer than wide between tegulae; scutellum almost flat, in lateral view at the same level of mesoscutum, medially with longitudinal furrow (Fig. 28); metanotum weakly convex, sloping down to apical margin, punctures on metanotum denser than scutellum, strongly carinate and reticulate; mesepisternum with dense, large, flat���bottomed punctures, similar to those on pronotum; metapleuron dorsally with several punctures, ventrally with sparse shallow and degraded punctures (Fig. 27); propodeum (Figs. 27���29) dorsally with dense, large, flat���bottomed punctures, strongly carinate and reticulate, deeper than mesepisternum, without a pair of blunt teeth behind metanotum, medially excavated and the basal fovea about 0.5 times of the length of the median carina which runs from the fovea to the apical margin; dorsal and posterior surfaces connected by carinae between punctures; posterior and lateral surfaces connected by bluntly angulate; laterally with punctures shallower and sparser than mesepisternum, the depth of the punctures on the lateral surfaces decreasing from upper to bottom (sometimes mixed with striae), posterior surface coriaceous with finely punctures or striae, and with flask-shaped depression along propodeal carina (Fig. 29). Metasoma. T1 (Fig. 30) about 2.0 times as wide as long, and basally truncate and weakly raised or even flat edge, anterior vertical surface weakly convex, with sparse punctures; T2���T4 (Fig. 30) with thin apical lamella, apical lamella on T2 longer than T3���T4, T2 (Fig. 30) about 1.2 times as wide as long; S2 (Fig. 31) in lateral view slightly convex from base to apical margin, in frontal view concave at basal; T1���T2 with moderate punctures, S2 punctures similar to or a little sparser than those on T2, T3���T5 punctures smaller than T2, S3���S5 punctures sparser than T5, tergum and sternum 6 with minute punctures smaller and sparser than T5; punctures on metasoma generally smaller and sparser than those on mesosoma. Male. Unknown. Distribution. China (Guizhou). Etymology. The specific name is derived from the Latin word lamella, referring to the apical lamellae of T2���T4., Published as part of Bai, Yue, Chen, Bin & Li, Ting-Jing, 2021, Two newly recorded genera Malayepipona Giordani Soika and Megaodynerus Gusenleitner, with eight new species from China (Hymenoptera, Vespidae, Eumeninae), pp. 371-391 in Zootaxa 5060 (3) on pages 377-379, DOI: 10.11646/zootaxa.5060.3.4, http://zenodo.org/record/5635877, {"references":["Nguyen, L. T. P. & Carpenter, J. M. (2013) Taxonomic notes on the species of the genus Malayepipona Giordani Soika (Hymenoptera: Vespidae: Eumeninae) from Northern Vietnam, with description of three new species. Raffles Bulletin of Zoology, 61 (2), 727 - 734."]}

Malayepipona sparsipuncta Bai, Chen & Li, sp. n. (Figs 51���59) Material examined. Holotype, 1♀, China, Yunnan Province, Nujiang Prefecture, Lanping County, Jinding Town, 26.435��N, 99.411��E, 2349 m, 12���13.VII.2011, Tingjing Li (CNU); paratypes: 2♀, same data as holotype (CNU). Diagnosis. This species resembles M. furva Nguyen & Carpenter 2013 by sharing with the characters of T2���T3 with apical lamella, and T3 with shorter apical lamella, and border between anterior and dorsal surfaces of T1 bluntly angulate, with obvious edge. But it can be distinguished from all other species of Malayepipona by the following character combination: clypeus black with two yellow lateral spots at base (Fig. 52), T1���T5 with apical yellow bands (widest on T2 and narrowest on T5) (Fig. 58) and S2 (Fig. 59) laterally convex and medially with longitudinal concave at base. Description. Female (Fig. 51). Body length 9.5���10.0 mm, forewing length 9.2���10.0 mm; body covered with short, silver setae except lower part of propodeum with dense, long silver setae; black, with the following parts orange���yellow: two spots on upper lateral corner of clypeus, one below spots along inner eye margin, scape ventrally, interantennal spot, one small spot on gena, base of pronotum, parategula, two lateral spots of scutellum (or not), two big connected spots of metanotum, apical bands on T1���T5 (widest on T2 and narrowest on T5), lateral apical bands on S2; tegula dark brown; wings brown, marginal cell of fore wing without an apical dark spot. Head. In frontal view, head subcircular, slightly wider than long (Fig. 52); vertex with two small cephalic foveae slightly bigger than maxmium puncture on vertex, bearing dense and long pubescence, area surrounding foveae nomal and punctate, distance between foveae about 0.8 times as long as distance between posterior ocelli (Fig. 53); distance from posterior ocellus to apical margin of the vertex about 1.6 times the distance from posterior ocellus to inner eye margin; vertex and gena with coarse, dense punctures (Fig. 53); punctures on frons coarser than vertex and gena, interspaces reticulate (Fig. 52); gena slightly wider than eye, occipital carina complete along gena; in frontal view, distance between inner eye margins at vertex about 1.2 times that at clypeus; clypeus (Fig. 52) basally with moderate punctures, medially and apically with sparse punctures, about 1.1 times as wide as long, in lateral view convex at basal half, apical margin emarginated medially, laterally forming a sharp tooth; clypeal width: emargination width = 1.32: 0.40; mandible with four prominent teeth, the first tooth with inner side slightly concave, the second and the third with inner side slightly produced to form round edges, the outer one pointed apically (Fig. 52); A1 about 3.2 times as long as its maximum width, curved; A3 about 1.6 times as long as wide, A4 slightly longer than wide, A5���A11 wider than long, A12 bullet���shaped, as long as its basal width. Mesosoma. Mesosoma longer than wide in dorsal view (Fig. 57); pronotum coarsely, densely punctate and strongly reticulate, punctures coarser and larger than vertex and gena; pronotal carina raised and complete; mesoscutum (Fig. 57) weakly convex, about 1.1 times as wide as long, punctures on mesoscutum similar to those on pronotum; scutellum weakly convex, in lateral view at the same level of mesoscutum, scutellum and metanotum medially with longitudinal furrow (Fig. 57), punctures on scutellum similar to those on mesoscutum; metanotum weakly convex, sloping down to apical margin, punctures on metanotum deeper than mesoscutum; scutellum and metanotum with deep depression (Fig. 56); mesepisternum with dense, large, flat���bottomed punctures, larger than pronotum posterodorsally; metapleuron dorsally with several punctures and weak striae, ventrally with sparse shallow punctures (Fig. 55); propodeum (Figs 54, 55, 57) dorsally with deep, dense, flat���bottomed punctures, interspaces strongly carinate and reticulate, its maximum punctures on body, medially excavated roundly and the basal fovea about 0.3 times of the length of the median carina which runs from the fovea to the apical margin; dorsal and posterior surfaces connected by a sharp edge; posterior and lateral surfaces connected by sharply angulate; lateral surface coarse, punctures much shallower and mixed with striae (Fig.); posterior surface densely with minute punctures mixed with striae, and with deep flask-shaped depression along propodeal carina. Metasoma. T1 (Fig. 58) about 1.8 times as wide as long, and basally truncate and weakly with raised edge, anterior vertical surface weakly convex, with sparse punctures; T2���T3 (Fig. 58) with obvious apical lamella, T2 about 1.1 times as wide as long; S2 (Fig. 59) in lateral view slightly convex from base to apical margin, in frontal view laterally convex, and medially with shallow depression at base; T1 with moderate punctures, T2 with sparser punctures, S2 punctures similar to those on T2, punctures on T3���T5 denser than T2, punctures on S3���S6 and T6 smaller and denser than S2, punctures on metasoma smaller and sparser than those on mesosoma. Male. Unknown. Distribution. China (Yunnan). Etymology. The specific name is derived from two Latin words: sparsus (= sparse) and punctus (= puncture), referring to the sparse puncture of the metasoma., Published as part of Bai, Yue, Chen, Bin & Li, Ting-Jing, 2021, Two newly recorded genera Malayepipona Giordani Soika and Megaodynerus Gusenleitner, with eight new species from China (Hymenoptera, Vespidae, Eumeninae), pp. 371-391 in Zootaxa 5060 (3) on pages 383-385, DOI: 10.11646/zootaxa.5060.3.4, http://zenodo.org/record/5635877, {"references":["Nguyen, L. T. P. & Carpenter, J. M. (2013) Taxonomic notes on the species of the genus Malayepipona Giordani Soika (Hymenoptera: Vespidae: Eumeninae) from Northern Vietnam, with description of three new species. Raffles Bulletin of Zoology, 61 (2), 727 - 734."]}

Malayepipona clypeata Nguyen & Carpenter, 2012 (Figs 68–76) Material examined. 1♀, China, Guangxi Zhuang Autonomous Region, Xingan County, Jinshi Township, 6.VII.2006 (CNU); 1♀, Guangxi Zhuang Autonomous Region, Laibin City, Jinxiu County, Dayao Mountain, 20.VII.2015, Yuting Hong (CNU); 2♀, Guizhou Province, Qiannan Prefecture, Maolan Nature Reserve, Dongdai Village, 21. VI.2015, Tingjing Li (CNU). Diagnosis. Female (Fig. 68). Body length about 12.1–13.2 mm; forewing length about 11.5–12.5 mm; body covered with short, ferruginous setae except lower part of propodeum with dense long silver setae; black, with the following parts orange-yellow: two large spots on upper lateral corners and two small spots at apex of clypeus (some specimens without apical small spots), interantennal spot, narrow band along inner eye margin extending from bottom of frons to nearly ocular sinus, scape ventrally, narrow apical band of T1, narrow apical band of T2 (some specimens without apical band of T2), spots on inner side of fore tibia, upper part of middle and hind femora; mandible mostly and anterior thin band of pronotum medially dark ferruginous; wings dark brown, strongly infuscate, with purple reflective, causing a dark spot at apex of marginal cell of forewing inconspicous (Fig. 68); head and mesosoma with very coarse punctures, interspaces strongly carinate and reticulate (Figs 68–74); clypeus apically forming a pair of sharp tooth (Fig. 69); pronotal carina slightly produced at humeral angles (Fig. 74); vertex with two small cephalic foveae, bearing dense pubescence, foveae almost as big as nearby punctures and unobvious, and behind foveae somewhat smooth and shiny; scutellum with shallow longitudinal furrow medially (Fig. 74); propodeum (Figs 71–72, 74) dorsally and laterally with deep, coarse, flat-bottomed punctures, interspaces strongly carinate and reticulate (the specimen from Guangxi dorsally smooth and just with several punctures (Fig. 73)), and upper part of propodeum forming a pair of relatively blunt teeth behind metanotum; dorsal and posterior surfaces connected by a sharp edge; posterior and lateral surface connected by sharply angulate; T1 (Fig. 75) basally truncate and with raised edge and transverse carina), T2 without apical lamella; S2 (Fig. 76) in lateral view slightly convex to apical margin, in frontal view concave at base. Male. Unknown. Distribution. China (new record: Guangxi, Guizhou), Vietnam.

Malayepipona triangula Bai, Chen & Li, sp. n. (Figs 60���67) Material examined. Holotype, 1♀, China, Yunnan Province, Baoshan City, Tengchong County, Jietou Township, Baiguo Village, 25.435��N, 98.689��E, 1775 m, 19.VII.2011, Xin Zhou (CNU). Diagnosis. This species is easily distinguished from all other species of Malayepipona by the following character combination: clypeus with triangular emargination medially and yellow at base (Fig. 61); metasomal segments strongly dull (Fig. 66), S2 laterally convex and mediallyconcave at basal half (Fig. 67). Description. Female (Fig. 60). Body length 9.8 mm, forewing length 10.0 mm. Body covered with short, silver setae except lower part of propodeum with dense, long silver setae; black, with the following parts orange���yellow: clypeus basally, narrow band along inner eye margin extending from bottom of frons to lower ocular sinus, interantennal spot, one small spot on gena, pronotum dorsally, parategula, scutellum, metanotum, posterodorsal spot of mesopleuron, apical bands on T1���T2, lateral apical bands on S2; tegula dark; wings brown, marginal cell of fore wing with an apical dark spot. Head. In frontal view, head subcircular, about 1.1 times as wide as long (Fig. 61); vertex with two small cephalic foveae, bearing dense pubescence, distance between foveae about 0.6 times as long as distance between posterior ocelli (Fig. 62); distance from posterior ocellus to apical margin of the vertex about 1.7 times of the distance from posterior ocellus to inner eye margin; vertex and gena with coarse, dense punctures (Fig. 62); punctures on frons coarser than vertex and gena, interspaces slightly reticulate (Fig. 61); gena slightly narrower than eye; occipital carina complete along gena; in frontal view, distance between inner eye margins at vertex about 1.3 times that at clypeus; clypeus (Fig. 61) with sparse punctures, about 1.1 times as wide as long, in lateral view slightly convex at basal half; apical margin triangularly emarginated medially, laterally forming a sharp tooth; clypeal width: emargination width = 1.20: 0.36; mandible with four teeth, the second and the third with inner side slightly produced to form round edges, the outer one pointed apically (Fig. 61); A1 about 3.4 times as long as its maximum width, curved; A3 about 1.5 times longer than wide, A4���A11 wider than long, A12 bullet���shaped, about 1.2 times as long as its basal width. Mesosoma. Mesosoma longer than wide in dorsal view (Fig. 65); pronotum coarsely, densely punctate and strongly reticulate, punctures coarser and larger than punctures on vertex and gena, pronotal carina raised and complete; mesoscutum weakly convex, about 1.1 times as long as wide; punctures on mesoscutum slightly larger than pronotum; scutellum weakly convex, in lateral view at the same level of mesoscutum, medially with shallow longitudinal furrow (Fig. 65), punctures on scutellum smaller and sparser than mesoscutum; metanotum weakly convex, sloping down to apical margin, metanotum punctures smaller than mesoscutum; mesepisternum with dense, large, flat���bottomed punctures, similar to those on pronotum posterodorsally; metapleuron dorsally with same punctures and long striae, ventrally with sparse shallow punctures (Fig. 64); propodeum (Figs 63���65) dorsally with coarse, dense, flat-bottomed punctures, strongly carinate and reticulate, medially excavated roundly and the basal fovea about 0.4 times of the length of the median carina which runs from the fovea to the apical margin; dorsal and posterior surfaces connected by a sharp edge; posterior and lateral surfaces connected by bluntly angulate, lateral surface coarse, punctures much shallower and mixed with striae, posterior surface densely and thinly striae mixed with minute punctures, and with shallow flask-shaped depression along propodeal carina. Metasoma. T1 (Fig. 66) about 2.0 times as wide as long, narrower than T2, and basally truncate and weakly raised edge; anterior vertical surface weakly convex, with sparse punctures; T2 (Fig. 66) with thin apical lamella, about 1.1 times as wide as long; S2 (Fig. 67) in lateral view strongly convex from base to apical margin, in frontal view laterally slightly convex and medially with concave at base; metasomal segments strongly dull, T1 laterally with dense punctures, interspaces slightly reticulate, T2 with sparse punctures, S2 punctures similar to those on T2, punctures on T3���T5 denser and smaller than on T2, S3���S6 punctures sparse than T5, T6 punctures sparser than S6. Male. Unknown. Distribution. China (Yunnan). Etymology. The specific name is derived from two Latin words: tri��� and angulus, referring to the triangular apical emargination of the clypeus., Published as part of Bai, Yue, Chen, Bin & Li, Ting-Jing, 2021, Two newly recorded genera Malayepipona Giordani Soika and Megaodynerus Gusenleitner, with eight new species from China (Hymenoptera, Vespidae, Eumeninae), pp. 371-391 in Zootaxa 5060 (3) on pages 385-387, DOI: 10.11646/zootaxa.5060.3.4, http://zenodo.org/record/5635877