An updated checklist of Croatian flesh flies is presented based on the literature, on material collected from 2004 to 2017, and on specimens in museum collections. The checklist comprises 22 genera and 148 species (two left unnamed), 105 of which are represented by new Croatian records. Twenty-five species are recorded from Croatia with certainty for the first time:Amobiapelopei(Rondani, 1859),ApodacraseriemaculataMacquart, 1854,Craticulinatabaniformis(Fabricius, 1805),Macronychiastriginervis(Zetterstedt, 1838),Metopiacampestris(Fallén, 1810),MiltogrammabrevipilaVilleneuve, 1911,MiltogrammaibericaVilleneuve, 1912,Miltogrammaoestracea(Fallén, 1820),MiltogrammapunctataMeigen, 1824,Oebalia cylindrica(Fallén, 1810),PhyllotelespictipennisLoew, 1844,Senotainiaconica(Fallén, 1810),Taxigrammahilarella(Zetterstedt, 1844),Taxigrammastictica(Meigen, 1830),Agriamonachae(Kramer, 1908),Nyctialugubris(Macquart, 1843), Blaesoxipha (Blaesoxipha) aurulenta Rohdendorf, 1937, Blaesoxipha (Blaesoxipha) batilligera Séguy, 1941, Blaesoxipha (Blaesoxipha) plumicornis (Zetterstedt, 1859), Sarcophaga (Helicophagella) okaliana (Lehrer, 1975), Sarcophaga (Heteronychia) amita Rondani, 1860, Sarcophaga (Heteronychia) ancilla Rondani, 1865, Sarcophaga (Heteronychia) pseudobenaci (Baranov, 1942), Sarcophaga (Myorhina) lunigera Böttcher, 1914 and Sarcophaga (Stackelbergeola) mehadiensis Böttcher, 1912.Taxigrammahilarella,Nyctialugubris,Agriamonachae, Blaesoxipha (Blaesoxipha) aurulenta and Sarcophaga (Heteronychia) amita are recorded from Southeast Europe with certainty for the first time. The species Sarcophaga (Sarcophaga) hennigi Lehrer, 1978 is omitted from the list, as previous records from Croatia are shown to be based on an erroneous synonymy withSarcophaganovakiBaranov, 1941 (= Sarcophaga (Sarcophaga) croatica Baranov, 1941). Blaesoxipha (Blaesoxipha) rufipes (Macquart, 1839) could not be confirmed from Croatia and is not included in the checklist. Three new synonymies are proposed:GolaniaLehrer, 2000 =ThyrsocnemaEnderlein, 1928,syn. nov., Parasarcophaga (Liosarcophaga) kovatschevitchi Strukan, 1970 = Sarcophaga (Liosarcophaga) marshalli Parker, 1923,syn. nov., and Sarcophagasubvicinassp.novaki Baranov, 1941 = Sarcophaga (Sarcophaga) croatica Baranov, 1941,syn. nov.As part of an effort to update the European distributions of all Croatian species, the following new national and regional records are also provided:Miltogrammabrevipila,MiltogrammataeniataMeigen, 1824 and Sarcophaga (Heteronychia) pandellei (Rohdendorf, 1937) new to Greece; Sarcophaga (Liosarcophaga) harpax Pandellé, 1896 and Sarcophaga (Sarcophaga) croatica new to Italy (respectively mainland and mainland and Sicily);Miltogrammaibericanew to Bulgaria and Sardinia;Pterellaconvergens(Pandellé, 1895) new to mainland Italy and Sicily;Nyctialugubrisnew to mainland Italy and Sardinia; Blaesoxipha (Blaesoxipha) litoralis (Villeneuve, 1911) new to Sardinia and thus confirmed for Italy;Apodacraseriemaculata,Macronychiastriginervis,Protomiltogrammafasciata(Meigen, 1824) and Blaesoxipha (Blaesoxipha) ungulata (Pandellé, 1896) new to Sardinia and Sicily;MacronychiadoliniVerves & Khrokalo, 2006,Macronychiapolyodon(Meigen, 1824),Metopiaargyrocephala(Meigen, 1824),Senotainiaalbifrons(Rondani, 1859),Taxigrammamultipunctata(Rondani, 1859),Taxigrammastictica, Blaesoxipha (Blaesoxipha) unicolor (Villeneuve, 1912) and Sarcophaga (Helicophagella) agnata Rondani, 1860 new to Sardinia;Metopodiapilicornis(Pandellé, 1895),Miltogrammaoestracea,MiltogrammarutilansMeigen, 1824,Nyctiahalterata(Panzer, 1798), Blaesoxipha (Blaesoxipha) lapidosa Pape, 1994 and Blaesoxipha (Blaesoxipha) plumicornis new to Sicily.
