New faunistic records of Heleomyzidae (Diptera) from the Czech Republic and Slovakia, and notes on the distribution of three rare Suillia species

New data about the distribution of selected species of family Heleomyzidae (Diptera) in the Czech Republic and Slovakia are given. Scoliocentra (Leriola) nigrinervis (Wahlgren, 1918) and Suillia cepelaki Martinek, 1985 are recorded for the first time from the Czech Republic and Orbellia cuniculorum Robineau-Desvoidy, 1830 is a new addition to the fauna of Slovakia. New records of three rare species of the genus Suillia, viz. S. variegata (Loew, 1862), S. gigantea (Meigen, 1830) and S. oxyphora (Mik, 1900) from the Czech Republic are presented. The habitat association and the attraction of adults of some species to bait used in traps are discussed.