The genus Medetera (Diptera: Dolichopodidae) in the Czech Republic with first records of twelve species Author Kejval, Zbyněk Muzeum Chodska, Chodské náměstí 96, CZ- 344 01 Domažlice, Czech Republic Author Pollet, Marc 0000-0001-5198-5928 Research Institute for Nature and Forest (INBO), Herman Teirlinckgebouw, Havenlaan 88 bus 73, B- 1000 Brussels, Belgium & Royal Belgian Institute of Natural Sciences (RBINS), Operational Directory Taxonomy and Phylogeny, Entomology, Vautierstraat 29, B- 1000 Brussels, Belgium. mpollet. doli @ gmail. com; https: // orcid. org / 0000 - 0001 - 5198 - 5928 mpollet.doli@gmail.com text Zootaxa 2023 2023-03-09 5254 1 69 93 http://dx.doi.org/10.11646/zootaxa.5254.1.4 journal article 10.11646/zootaxa.5254.1.4 1175-5326 7710858 A7B92D56-B267-4EBE-9896-187B043274F7 Medetera pseudoapicalis Thuneberg, 1955 Material examined. Bohemia : Bílina , 3 km SE (5448), Holibka hilltop, 50°31′21″N 13°49′47″E , 450 m , MT, 14–28.v.1998 , M. Barták lgt., 1 ♁ ( NMPC ) . Kunice (6053), 49°56′N 14°40′E , 430 m , garden, MT, 2–7.vi.1985 , M. Barták lgt., 1 ♁ ( NMPC ) . Uhlířské Janovice , 5 km W (6156), 49°53′26″N 15°01′48″E , 460 m , damp meadow, MT, vi.–vii.2002 , M. Barták lgt., J. Olejníček det., 1 ♁ ( NMPC ) . Nemanice, SW of (6542), Nemanický potok (stream) env., 49°25′41″N 12°42′38″E , ca 500 m , Populus , 11.v.2022 , 1 ♁ 3 ♀♀ ( MCH ) . Distribution. Belgium , Estonia , Finland , Netherlands , Norway , Russia , Sweden ( Negrobov & Naglis 2016 ) and Czech Republic (present paper). Status in CZ. The first records are given herein. Ecology . In Flanders (northern Belgium ), M. pseudoapicalis is an early spring species that has mainly been encountered on poplar trees in damp wooded sites (M. Pollet, unpubl. data).