A generic classification of Xenidae (Strepsiptera) based on the morphology of the female cephalothorax and male cephalotheca with a preliminary checklist of species Author Benda, Daniel https://orcid.org/0000-0002-5729-0411 Department of Zoology, Faculty of Science, Charles University, Prague, Czech Republic & Department of Entomology, National Museum, Prague, Czech Republic benda.daniel@email.cz Author Pohl, Hans https://orcid.org/0000-0002-7090-6612 Institut fuer Zoologie und Evolutionsforschung, Friedrich-Schiller-Universitaet, Jena, Germany Author Nakase, Yuta Department of Biology, Faculty of Science, Shinshu University, Matsumoto, Japan Author Beutel, Rolf Institut fuer Zoologie und Evolutionsforschung, Friedrich-Schiller-Universitaet, Jena, Germany Author Straka, Jakub https://orcid.org/0000-0002-8987-1245 Department of Zoology, Faculty of Science, Charles University, Prague, Czech Republic text ZooKeys 2022 2022-04-07 1093 1 134 http://dx.doi.org/10.3897/zookeys.1093.72339 journal article http://dx.doi.org/10.3897/zookeys.1093.72339 1313-2970-1093-1 23B7070849A94681AC20494D06F98CCE D3A8D50FF61A5B61B8776D63EB0D3F4C Leionotoxenos arvensidis (Pierce, 1911) comb. nov. Pseudoxenos arvensidis Pierce, 1911: 499. Hosts. Euodynerus annulatus arvensis (Saussure, 1869) (as Odynerus (Leionotus) arvensis Saussure, 1869) ( Pierce 1911 ), Euodynerus annulatus sulphureus (Saussure, 1858) ( Kinzelbach 1971b ). Distribution. USA: Illinois ( Pierce 1911 ).