Analysis of dust samples from the clinical environment of children with eczemas.

Dust samples were collected and analyzed from the environment of eczematic children both in their homes and the hospital. Samples of house dust (33) contained 16 mite species and a total of 396 mite specimens. Of these, 315 specimens were members of the family Pyroglyphidae.

[Developmental stages of the mite Varroa jacobsoni Oudemans, 1904 (Acari: Dermanyssidae)].

The mite Varroa jacobsoni Oudemans, 1904, is a dangerous parasite of bees which has spread over Europe and other continents in recent two decades. The rapid spreading of the parasite has become a serious problem to veterinarians and bee-keepers in many countries of the world. The development of the mite Varroa jacobsoni has not yet been studied in all details.

Mites from the city pavement.

The authors obtained a total of 136 mite specimens from dust samples collected from the pavement of Prague in monthly intervals for a period of one year. Of utmost importance was the finding of Dermatophagoides farinae Hughes, 1961 and Euroglyphus maynei (Cooreman, 1950), both of the family Pyroglyphidae, allergogenic mites. Apart from a few exceptions, all other species were common mites of food stores.