Tanytarsini (Diptera: Chironomidae) collected during Polish expeditions to North Korea Author Giłka, Wojciech 0000-0002-8403-5432 University of Gdańsk, Faculty of Biology, Department of Invertebrate Zoology and Parasitology, Laboratory of Systematic Zoology; Wita Stwosza 59, 80 - 308 Gdańsk, Poland. & wojciech. gilka @ ug. edu. pl; https: // orcid. org / 0000 - 0002 - 8403 - 5432 wojciech.gilka@ug.edu.pl Author Gadawski, Piotr 0000-0001-9334-1960 University of Lódź, Faculty of Biology and Environmental Protection, Department of Invertebrate Zoology and Hydrobiology; Banacha 12 / 16, 90 - 237 Łódź, Poland. & piotr. gadawski @ biol. uni. lodz. pl; https: // orcid. org / 0000 - 0001 - 9334 - 1960 piotr.gadawski@biol.uni.lodz.pl text Zootaxa 2022 2022-12-01 5214 2 151 175 journal article 198863 10.11646/zootaxa.5214.2.1 14abb8a4-9e30-4d40-83b4-c725db688c72 1175-5326 7384985 8E7D1FC9-FD58-4DB3-ACA6-5AE38BDB6B0A Tanytarsus iriolemeus Sasa et Suzuki, 2000 Tanytarsus iriolemeus Sasa et Suzuki, 2000: 20 (male, fig. 21 a–n; Japan ). ( Fig. 6A–D ) Material examined. Kŭmgang-san, 28 June – 2 July 1981 , 1 male ; Myohyang-san, 22–25 June 1981 , 2 males ; leg. W. Krzemiński. Remarks. The North Korean specimens fit well the original description of Tanytarsus iriolemeus ( Sasa & Suzuki 2000 ) except for one character crucial in species group concepts for Tanytarsus - the strong bristle-like median setae placed in a roundish field of the hypopygial anal tergite. This structure is omitted in the original description but present in the holotype specimen (slightly beyond the range of sharpness on the photo presented at NMNS website, 385:035). This character combined with the anal point elongate, bearing a few spinulae ( Fig. 6A, B ; cf. also Tanytarsus innarensis Brundin 1947 ), the superior volsella roundish, medially excavated, with a well-protruded posteromedian corner, the digitus long apically rounded ( Fig. 6C ), and the shape of the median volsella ( Fig. 6D ) may indicate that T. iriolemeus belongs to the verralli species group. In the analyses by Lin et al . (2018b) , T. iriolemeus falls in the tamakutibasi cluster that together with the aterrimus + chinyensis + curticornis groups is sister to a clade comprising the Holarctic excavatus , recurvatus , and verralli groups.