Rediscovery of Tomosomus Motschulsky, 1855 (Coleoptera: Anthicidae) with redescription of the genus, a new genus-rank synonym, and a key to species Author Telnov, Dmitry Department of Life Sciences, Natural History Museum, SW 7 5 BD, London, United Kingdom & Coleopterological Research Center, Institute of Life Sciences and Technology, Daugavpils University, Vienības iela 13, LV- 5401, & Institute of Biology, University of Latvia, O. Vācieša iela 4, LV- 1004, Rīga, Latvia Author Gusakov, Alexey A. 0000-0001-7709-7515 Zoological Museum, Moscow Lomonosov State University, 2 Bol’shaya Nikitskaya Str., 125009, Moscow, Russia https: // orcid. org / 0000 - 0001 - 7709 - 7515 text Zootaxa 2023 2023-05-23 5293 3 541 556 http://dx.doi.org/10.11646/zootaxa.5293.3.6 journal article 53457 10.11646/zootaxa.5293.3.6 f5f379bf-cbea-409d-9910-95cc6187acf6 1175-5326 7961475 8B6480D9-3A65-4319-BC4C-089F7AC6946F Tomosomus Motschulsky, 1855 Motschulsky (1855: 18) . Type species: Tomosomus subtestaceus Motschulsky, 1855 [monotypy]. Tomosomus — Motschulsky (1855: 18) , original description, in Anthicidae ; Chandler (2010: 730) checklist of world Anthicidae genera, erroneously attributed to Anthicini Latreille, 1819 . Type material examined ( Figs 1–2 ). See species redescription. Nomenclature. Motschulsky (1855) introduced the genus Tomosomus and the species T. subtestaceus in Anthicidae without subfamily placement in one of his letters to Ménétries published in the journal Études Entomologiques from the material collected in “Obispo”, Panama . The genus and species names were provided with a short comparative statement (or an uninformative descriptive comment), presence of which in the combination with a species name justifies the recognition of the names as available ( ICZN 1999 ). In his letters Motschulsky introduced several new genus-rank names of Coleoptera which previously were considered inadequate due to the uninformativeness of these descriptions (see Chandler 1999 , 2013 for some examples). Tomosomus , published in the combination with the species name T. subtestaceus , met the criteria for publication by providing a minimal comparative statement. Tomosomus is only mentioned in one publication since the original description ( Chandler 2010 ). This genus has never been revised.