On the taxonomy of the genus Isochlora Staudinger with descriptions of two new species from Mongolia and Qinghai, China (Lepidoptera: Noctuidae: Noctuinae) Author Volynkin, Anton V. Altai State University, Lenina Avenue, 61, RF- 656049, Barnaul, Russia. Author Titov, Sergey V. 0000-0003-2196-280X Institute of Zoology, Entomology laboratory, Al-Farabi Avenue, 93, KZ- 050060, Almaty, Kazakhstan. & Department of Biology and Ecology; the Research Centre for Environmental “ Monitoring ”, Toraighyrov University, Lomova str. 64, KZ- 140008, Pavlodar, Kazakhstan. & Scientific Center “ Bioarchaeology ”, Institute of Archaeological Research, Margulan University, Olzhabay Batyr str. 60, KZ- 140002, Pavlodar, Kazakhstan. & sandibicumar @ gmail. com; https: // orcid. org / 0000 - 0003 - 2196 - 280 X sandibicumar@gmail.com Author Matov, Alexey Yu. 0000-0002-6066-6440 Zoological Institute, Russian Academy of Sciences, Universitetskaya Embankment 1, St. - Petersburg, RF- 199034 Russia. alexey. matov @ zin. ru; https: // orcid. org / 0000 - 0002 - 6066 - 6440 alexey.matov@zin.ru Author Tóth, Balázs 0000-0002-6089-1218 Department of Zoology, Hungarian Natural History Museum, Baross utca, 13, H- 1088 Budapest, Hungary. toth. balazs @ nhmus. hu; https: // orcid. org / 0000 - 0002 - 6089 - 1218 toth.balazs@nhmus.hu Author Saldaitis, Aidas Nature Research Centre, Akademijos str., 2, LT- 08412, Vilnius- 21, Lithuania. Author Rakhimov, Ruslan D. 0000-0001-5650-7239 Institute of Zoology, Entomology laboratory, Al-Farabi Avenue, 93, KZ- 050060, Almaty, Kazakhstan. & frontosa 88 @ mail. ru; https: // orcid. org / 0000 - 0001 - 5650 - 7239 frontosa88@mail.ru Author Egorov, Petr V. 0000-0001-7686-6845 Institute of Zoology, Entomology laboratory, Al-Farabi Avenue, 93, KZ- 050060, Almaty, Kazakhstan. & ent. helios _ 2908 @ mail. ru; https: // orcid. org / 0000 - 0001 - 7686 - 6845 ent.helios_2908@mail.ru text Zootaxa 2023 2023-11-17 5374 3 409 423 https://www.mapress.com/zt/article/download/zootaxa.5374.3.5/52296 journal article 10.11646/zootaxa.5374.3.5 1175-5326 10152641 75A1CC8A-D4EB-4457-86D0-01A89891C535 Isochlora flora ( Alphéraky, 1892 ) ( Figs 15–17, 19 ) Grumia flora Alphéraky, 1892 , Horae Societatis entomologicae Rossicae , 26(3–4): 453 ( Type locality: [ China , Qinghai , ca. 40 km SW of Xining , Khun-yo-tszy Watershed ] “montibus Sinin-schan ( Amdo )”). Type material . Lectotype (hereby designated): male, “Sinin | alpes | 15000 ’ ” / “Khun-itsy” [Khun-yo-tszy] / “17. VII.[18]90” / “ Grumia | Alph. | Flora Alph. ” / “ Coll. Gr. [and] Dk.[Duke] | Nikolay | Mikhailovich” (in Russian) / “Slide | AV7371³ | A. Volynkin ” ( ZISP ) . Paralectotype : male, same data as lectotype ( ZISP ) . Additional material examined . CHINA : 1 male , 1 female , [ Qinghai , Qinghai Lake ] Kukunoor , Coll. Gr. [eat] Pr. [ince] Nikolay Mikhailovich , gen. prep. Nos. : RL9873 (male) and RL9874 (female) (prepared by L. Ronkay ) ( ZISP ) . Note on the type locality . Besides S. Alpheraky’s handwritten label “Sinin alpes 15000 ’ ”, the syntypes of I. flora are also supplemented with G.E. Grum-Grshimailo’s original labels containing the locality and date of collecting. In the second volume of his comprehensive book devoted to the journey in Western China , G.E. Grum-Grshimailo (1899) described the mountains south of Xining, which he called ‘Sinin [=Xining] Alps’ (also mentioning the local name ‘Shi-nyu-shan’) in detail, and wrote that most Lepidoptera species collected by the expedition in the ‘meadow oases’ in the alpine zone were new to science. ‘ Grummia flora Alph. ’ was also included in the list of those species. The locality described apparently belongs to the Mount Yeniushan, the highest peak of the Lajishan Mountains (Si-yao Huang, pers. comm.). However, the described stage of the expedition took place in June 1890 whereas the original label contains the date July 17, 1890 . The events of mid-July are described in the third volume of the book ( Grum-Grshimailo 1907 ). On July 16–17, on the way from Chan-khu [Qianucun] to Kukunor [ Qinghai ] Lake, the expedition was crossing the watershed called ‘Khun-yo-tszy’, the locality clearly matching Grum-Grshimailo’s original label, which should be considered as the place of origin of the syntypes . This confusion in localities apparently came from S. Alphéraky, who assigned the specimens with quite illegibly handwritten labels with the place called ‘Sinin Alps’, where Grum-Grshimailo’s expedition was collecting a lot. Subsequently, while preparing his book, G.E. Grum-Grshimailo used the wrong data contained in the paper by Alphéraky (1892) and therefore erroneously included I. flora in the list of species he collected in ‘Sinin Alps’. Remark . Alphéraky (1892) described the species based on an unspecified number of males. Two male specimens with the label “Sinin alps 15000 ’ ” matching the type locality cited in the original description are considered as syntypes . In order to stabilise the nomenclature, the syntype dissected is hereby designated as the lectotype . FIGURES 20–23 . Isochlora spp. : male genitalia. Depositories of the specimens dissected: 20 and 21 in MfN; 22 in MH/ HNHM; 23 in ZISP. FIGURES 24–27 . Isochlora spp. : male genitalia. Depositories of the specimens dissected: 24, 26 and 27 in ZISP; 25 in MfN. FIGURES 28–32 . Isochlora spp. : female genitalia. Depositories of the specimens dissected: 28, 29, 31 and 32 in ZISP; 30 in MfN. FIGURE 33 . Distribution map of Isochlora spp. in the Tien Shan Massif and Mongolian Altai. FIGURE 34 . Distribution map of Isochlora spp. in Qinghai, China. Diagnosis . The forewing length is 10.0–10.5 mm in the males and 12.0 mm in the female. The comparison with the similar I. kozlovi sp. n. is provided above in the diagnosis of the latter species. Distribution . Western China (eastern Qinghai Province ) ( Fig. 34 ).