NATURAL HISTORY, TORONTO REGION 



city the Sweet Brier, Rosa rubiginosa, L., has been 

 practically exterminated by the ravages of Rhodites 

 rosae, Linne., which produces on its stems the large 

 moss-like galls. 



Solenozopheria vaccinii, Ashmead. Host Vaccini- 

 um pennsylvanicum, Lam. Produced as a large reni- 

 form swelling of the stem of this blueberry, which is 

 almost invariably bent at the point of attachment of 

 the gall. 



REFERENCES. 



Cosens, A. A Contribution to the Morphology and 



Biology of Insect Galls. Trans. Can. Inst. 



IX. 1912. 

 Beutenmueller, William. Monographs of the Cyni- 



pidae. Amer. Mus. Nat. Hist., 1904-11. 

 Jarvis, T. D. Insect Galls of Ontario. Rep. Ent. 



Soc. Ont., 1907-8. 

 Patch, E. M. Chermes of Main Conifers. Maine 



Agr. Exp. Sta. Bull. No. 173, 1909. 

 Stebbins, F. A. Insect Galls of Springfield, Mass., 



and Vicinity. Springfield Mus. Nat. His. 



Bull. No. 2, 1909. 



204 



