Abstract
Altogether 2 genera and 16 species of the family Chloropidae (Diptera) are recorded from the Czech Republic (2 genera, 12 species) and Slovakia (4 species): 2 genera and 4 species represent first records from the Czech Republic, 8 species are new for the fauna of Bohemia and 4 for the fauna of the Slovak Republic. The most interesting findings are Eutropha variegata Loew, 1866, Chlorops babosae Dely-Draskovits, 1978, Chlorops longipalpis (Duda, 1933), Calamoncosis rhenana Wendt, 1994, Lasiambia subsplendens (Duda, 1933) and Sabroskyina sziladyi (Duda, 1933).