New records of Micropezidae (Diptera, Acalyptratae) from South Korea, with description of a new species of Rainieria Rondani Author Kim, Wonwoong 0000-0001-5837-1048 College of Literature, Science, and the Arts, University of Michigan-Ann Arbor, Michigan, United States of America. wonwoong @ umich. edu; https: // orcid. org / 0000 - 0001 - 5837 - 1048 wonwoong@umich.edu Author Weele, Ruud Van Der Kloosterlaan 6, NL 4111 LG Zoelmond, the Netherlands Author Lee, Seunghwan Insect Biosystematics Laboratory, Department of Agricultural Biotechnology, Seoul National University, Seoul 151 - 921, Republic of Korea. & Research Institute for Agricultural and Life Sciences, Seoul National University, Seoul 151 - 921, Republic of Korea text Zootaxa 2022 2022-08-24 5178 1 26 40 journal article 129661 10.11646/zootaxa.5178.1.2 66ceb082-2ee4-4e5f-bec4-950a35c67451 1175-5326 7021824 7EB6ABDB-A942-4DB9-8E2B-B29844FFDB2A Genus Rainieria Rondani, 1843 Rainieria Rondani, 1843: 40 . Type species: Calobata calceata Fallén, 1820 Diagnosis. Palearctic Rainieria can be distinguished by the following characteristics: Medium-sized ( 7–9mm ), elongate Taeniapterinae , generally dark brown to black in coloration; head globose, frontal vitta velvety black, most wide before ocelli, tapering and anteriorly and posterior to ocelli; ocellar plate small and black, in line with or anteriorly located with the orbital bristle; palpus black microsetulose, broad but gradually tapering apically; clypeus shining, bare; one to three similarly well-developed frontal bristles; strong, well-developed inner vertical, outer vertical, and postocellar bristles; fore tarsomeres white; femur dark brown and often with brown preapical band; wings evenly infuscate and often with a dark discal band ( Fig. 8C–D ) male S5 of known species variable, inner surface of each arm with dense, short and strong setae ( Fig. 5 ); phallic bulb distinct, ovate; distal distiphallus not surpassing the basal margin of hypandrium, its end usually bluntly rounded without apical swelling. Distribution and diversity. This genus shows a Holarctic distribution, with exception of subtropical R. boninensis (Hennig) known only from Ogasawara Islands, Japan ( Aczél 1959 , Soós 1984 ). There are 8 species recognized in this genus, and in the Palearctic region there are 6 species including one newly described here ( Hennig 1938 , Soós 1984 , Krivosheina & Krivosheina 1996 ). Species described in the Neotropical region previously treated as Rainieria belong in other genera (S. Marshall, pers . comm .), and thus excluded here. Discussion. Species known from Madagascar were recently reclassified as Afrotropical Paramimegralla Hennig ( Marshall 2017 ) .