Integrative taxonomy of Central European Planetella (Diptera: Cecidomyiidae) indicates high species diversity, intraspecific variation and low host specificity Author Ševčík, Jan Department of Biology and Ecology, Faculty of Science, University of Ostrava, Chittussiho 10, CZ- 710 00 Ostrava, Czech Republic; e-mails: sevcikjan @ hotmail. com, burdikova @ seznam. cz, sopuch. krystof @ gmail. com & Silesian Museum, Nádražní okruh 31, CZ- 746 01 Opava, Czech Republic Author Hippa, Heikki Zoological Museum, Biodiversity Unit, University of Turku, FI- 20014 Turku, Finland; e-mail: heikki. hippa @ gmail. com Author Burdíková, Nikola Department of Biology and Ecology, Faculty of Science, University of Ostrava, Chittussiho 10, CZ- 710 00 Ostrava, Czech Republic; e-mails: sevcikjan @ hotmail. com, burdikova @ seznam. cz, sopuch. krystof @ gmail. com Author Sopuch, Kryštof Department of Biology and Ecology, Faculty of Science, University of Ostrava, Chittussiho 10, CZ- 710 00 Ostrava, Czech Republic; e-mails: sevcikjan @ hotmail. com, burdikova @ seznam. cz, sopuch. krystof @ gmail. com Author Skuhravá, Marcela Bítovská 1227 / Author Bruun, Hans Henrik Department of Biology, University of Copenhagen, Universitetsparken 15, Copenhagen, Denmark; e-mail: hhbruun @ bio. ku. dk text Acta Entomologica Musei Nationalis Pragae 2023 2023-12-30 63 2 413 450 http://dx.doi.org/10.37520/aemnp.2023.026 journal article 10.37520/aemnp.2023.026 1804-6487 E961B014-4A0D-482B-A005-6D7B58D60B03 Planetella fischeri ( Frauenfeld, 1867 ) Hormomyia fischeri Frauenfeld, 1867: 781 . Type locality: Austria , Vienna , Prater. Type material. HOLOTYPE : Austria : Prater (?coll. NHMW Vienna ), not examined. Comments. It is stated in the original description by FRAUENFELD (1867) that type material was reared from Carex pilosa collected by L. Fischer in Prater ( Vienna ), Austria . The gall was in the form of swellings at the base of leaves. The larva and pupa were described in detail but not illustrated. The adult is described as very dark, scutum produced above the head, with three lateral stripes, abdomen dark brown, head blackish brown, and antennae with 2 + 20 segments, flagellomeres binodose. The number of flagellomeres would possibly be diagnostic for this species because no other European species of Planetella is known to have 20 flagellomeres. The closest in this respect is P. antennata with 21 binodose flagellomeres but having distinctly banded abdomen. The holotype should be deposited in Vienna , pending further study.