A review of genus-group names in Diptera (Insecta) that J. C. Fabricius “ borrowed ” from other dipterists and proposed as new in his systematic works from 1775 to 1805 Author Michelsen, Verner Zoological Museum, Natural History Museum of Denmark, University of Copenhagen, Denmark. E-mail: vmichelsen @ snm. ku. dk Canadian National Collection of Insects, Agriculture and Agri-Food Canada, 960 Carling Avenue, Ottawa, Ontario, Canada, K 1 A 0 C 6. E-mail: james. ohara @ agr. gc. ca Author O’Hara, James E. text Zootaxa 2014 2014-10-14 3873 1 73 81 journal article 5299 10.11646/zootaxa.3873.1.6 4def451e-e1a4-496e-9cfb-6ccb4f6d88a1 1175-5326 4948111 66DDFEA9-E1CE-43C1-B09F-FE8504898312 Scatophaga Fabricius, 1805 : x, 203. Type species: Musca fimetaria Linnaeus, 1761 (the 5th of 31 originally included species), by present designation . Junior objective synonym of Psila Meigen, 1803 ( type species: Musca fimetaria Linnaeus, 1761 ), syn. n. ( Psilidae ). Remarks. Scathophaga Meigen, 1803 , originally proposed for dung flies (“ Musca merdaria etc. Fabricius”) of the family Scathophagidae , was cited by Fabricius (1805: 306 , misspelled as Scatophaga ) under Musca merdaria Fabricius, 1794 (= Musca stercoraria Linnaeus, 1758 ). Other species of the current genus Scathophaga Meigen (e.g., scybalaria Linnaeus, 1758 and lutaria Fabricius, 1794 ) were also consistently classified in Musca Linnaeus, 1758 by Fabricius (1805) . However, Fabricius (1805: 203–210) proposed a different usage of the name Scatophaga for 31 species of mostly testaceous acalyptrate flies with a short, porrect antennal postpedicel. Most of the included species belong to the families Sciomyzidae , Lauxaniidae and Ulidiidae . Species of Scathophaga Meigen are different in having antennae with a longer, deflexed postpedicel. Only a single species ( Musca suilla Fabricius, 1794 ) among the 31 species originally included in Scatophaga Fabricius belongs to the Scathophagidae . The identity of that nominal species is treated below. The different usage of the name Scatophaga introduced by Fabricius (1805) , which embraces a poorly defined assemblage of mostly acalyptrate flies, has consistently been overlooked (or ignored?) by dipterists up to the present. Adding to the confusion, Meigen (1826) adopted Fabricius’s spelling “ Scatophaga ” for his own genus of dung flies without, of course, adopting Fabricius’s usage of the name. This should be categorized as an “incorrect subsequent spelling” of Scathophaga Meigen , even though it may well have been done deliberately. The present fixation of a type species refers Scatophaga Fabricius to the Psilidae . Note that Scatophaga Fabricius, 1805 and Scathophaga Meigen, 1803 are not homonyms according to the Code Article 56.2 (one letter difference).