| abstract | Dermanyssus gallinae (De Geer), Amblyseius aurescens Athias-Henriot, Ledermuelleria rhodomela (Koch), Pyemotes herfsi (Oudemans), Congovidiella pragensis Samšiňák, sp.n. and Pterophagus strictus Mégnin are found in dust samples from streets of Praha, Czechoslovakia. The findings are preliminary appreciated. |