A parasite known as the acarus folliculorum infests the sebaceous glands. |
We now come to the genus acarus, of which the cheese and sugar mites are examples. |
The acarus Scabiei causes itch, but fortunately it is rare in America. |
Scabs of any thickness may form, but the special features are the intense itching and the presence of the acarus. |
It would be an acarus, he observes, but it has only six legs. |
Pouring with tobacco liquor is fatal to these insects, and also to the ked, Hippobosca ovina, and to the tick, Acarus reduvius, if it fairly reach them. |