Taxonomy of Diamesa steinboecki group (Diptera: Chironomidae: Diamesinae) with description and DNA barcoding of known species. II. Subgroups davisi, leona and loeffleri Author Makarchenko, Eugenyi A. Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far East Branch of the Russian Academy of Sciences, 100 let Vladivostoku 159, 690022 Vladivostok, Russia Author Semenchenko, Alexander A. 0000-0001-7207-9529 Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far East Branch of the Russian Academy of Sciences, 100 let Vladivostoku 159, 690022 Vladivostok, Russia & semenchenko _ alexander @ mail. ru; https: // orcid. org / 0000 - 0001 - 7207 - 9529 semenchenko_alexander@mail.ru Author Palatov, Dmitry M. 0000-0002-8826-9316 A. N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences, Leninskij prosp. 33, 119071 Moscow, Russia triops @ yandex. ru; https: // orcid. org / 0000 - 0002 - 8826 - 9316 triops@yandex.ru text Zootaxa 2022 2022-09-29 5190 3 361 392 journal article 156939 10.11646/zootaxa.5190.3.3 0feedd02-1573-4a52-bce0-f390e7a3bfcd 1175-5326 7138200 AEE72ABB-4358-4BB2-9394-DB5FD8105871 Diamesa loeffleri subgroup Adult males of this subgroup have antenna with 13 flagellomeres and completely or partly reduced setae of plume. Hypopygium with long anal point, slightly tapering to subapical, with strong anteriorly directed microtrichia in basal half and on tergite IX. Inferior volsella in the form of angular naked projection on the dorsal side of the gonocoxite or like small lobe covered with micro- and macrotrichia and adjacent to a protuberance with some long setae. Superior volsella slightly reduced, in form of rounded angular tubercle or collar. Gonostylus slightly curved, tapering to apex, with short megaseta. Transverse sternapodeme triangular or trapezoidal.