| abstract | One new species Mesoplophora (Mesoplophora) parainvisitata sp. nov. from the Palm house of Praha is described. In 30 of soil and litter from the Palm houses in Berlin, Praha, Brest and Minsk, 13 species of ptyctimous mites were found. Five of them are widely distributed, one is holarctic, four are semicosmopolitan and eight of them are exotic species. Among the exotic species one is newly described, one is oriental, one is Neotropical and five are pantropical species. Generally, it was established that more than half of the species come from the country of the plant origin, while the rest are probably native fauna to the soil added to the introduced plants. |