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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 Vaccinium pennsylvanicum, Lam. Produced as a large reniform 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 Cynipidae. 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.

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