EN
New data concerning 12 rare species of Mordellidae collected in Poland are presented. Seven of them are reported for the first time from particular regions of Poland. Mordellistena dvoraki and M. kraatzi are new for Northern Poland. Two new localities of Mordellistena thurepalmi are discussed; the species appears to be widely distributed and it seems to be expanding. New records of very rare species Variimorda basaltis, Mordellistena brunneospinosa and M. falsoparvula are given.