Cheyletid fauna associated with stored products in Czechoslovakia

During the survey of the fauna of food processing factories in Czechoslovakia in the years 1962 through 1978, over 10,000 mites of the family Cheyletidae belonging to 10 species were found in 1560 samples. Cheyletus eruditus (Schrank) was a dominant species followed by C. malaccensis Oud. and C. trouessarti Oud. The species C. aversor Rohd., Cheletomorpha lepidopterorum (Shaw), C. hendersoni Baker, Cheyletia papillifera Volgin, Ker bakeri Zaher and Soliman and Grallacheles bakeri De Leon were obtained less frequently, the four last species being reported for the first time from Czechoslovakia. Acaropsellina sollers (Kuzin) may prove to be a junior synonym of Acaropsellina docta (Berlese).