Note 330 — ON PARASITES IN GENERAL. (continued 11)

[Acarina are also found living upon trees, feeding upon other Arthropods and also upon spores of lichen and fungi (Oribatidæ or beetle mites); they also swarm indoors amongst stores and provisions (Tyroglyphidæ and Glyciphagi, household, sugar and cheese mites). This order is very important, as many are parasites upon man, his domestic animals and his cultivated plants, and attack his provisions and stores. Some live on blood, and in some of the ticks distribute various protozoal and other blood parasites and germs.—F. V. T.]