100 



THE REPOET OF THE 



No. 36 



Tyroglyph'us siro, Linnaeus. (Fig. 27.) On cheese in cheese factories in various 

 parts of the Province. Smoked hams. T. D. J. 



Tyroglyphus Americanus, Banks. In test tube of Bacteriological laboratory. 

 In jar of raspberry jam. T. D. J., Guelph. 



Rhizoglyphus hyacinthi. Bos. Bulb of Gladiolus, common Daffodil. T. D. J., 

 Guelph. 



Rhizoglyphus rhizoglyphus, Banks. On hay, O.A.C. barn; decaying potatoes 

 and parsnips, decaying heart of celery. T. D. J., Guelph. 



Rhizoglyphus phylloxerce, Riley. (Fig. 28.) On turnip in root cellar, 

 Guelph; on decaying heart of celery, Guelph; on roots of grape, London. T. D. J., 

 Guelph. 



Carpoglyphus passularum, Hr. On raw sugar from store in Guelph; on 

 smoked ham in pork packing house. T. D. J., Guelph. 



Histiostoma muscarum. Attached to housefly. T. D. J., Guelph. 



Histiostoma valida, Banks. In horse manure, Guelph. T. D. J., Guelph. 



Aleurobius farinae. Fairly common in flour in flour mills. T. D. J., Guelph. 



Fig. 27. Tyroglyphus 

 siro — Cheese mite. 



Fig. 28. Rhizoglyphus phylioxerae. 

 Family Canestrinid.!,. 



Only one species so far found in Ontario. It, however, is of much economic 

 importance, as it is predaceous upon the San Jose Scale. They are small, short- 

 legged mites, closely related to the Sarcoptidge and also apparently to the 

 Tyroglyphidse. 



Heniisarcoptes malus, Sch. San Jose Scale, St. Catharines. T. D. J. 



Family Analgesid.^-. 



Forty-three species have been taken in this Province. They inhabit the feathers 

 of birds and apparently do little or no injury to the host. They are extremely 

 email and found in great abundance on the feathers of the wings and other parts 

 of the bird. W. R. Thompson, B.S.A., of the Gypsy Moth Laboratory of Boston, 

 has made a special study of the anatomy and characteristics of this family in 

 Ontario, using the collection of the writer. In this connection I wish to emphasize 

 the patient and painstaking work of Mr. Thompson on this family, while a pupil 

 of the Zoological Department of this College. A full list of these species will be 

 published in the annual report of this Society for 1910. 



