. Annual report. Entomological Society of Ontario; Insect pests; Insects. 1899] ENTOMOLOGICAL SOCIETY. 63 -p. 879. 1889. Lintner—Fifth Rep. N. Y. State-pp. 164-173. 1890. Packard—U. S. Ent. Com. V. Rep., Forest Insects- 1891. Fyles—Am. Rep. Ent. Soc. Ont.—pp. 28, 30. 1893. Harrington— «' —pp. 19, 21. " Lintner—Eighth Rep. N. Y. State—pp. 168, 169. 1894. Fyles—Am. Rep. Ent. Soc. Ont.—pp. 4, & 1896. Marlatt—Revision of the Nematinae of North America—pp. Ill, 112. 1898. Hutt—Am. Rep. Ent. Soc. Ont.—p. 94. Lydasj).; (Colorado Spruce Saw-Fly.) On May 30th several black saw-flies were obser
. Annual report. Entomological Society of Ontario; Insect pests; Insects. 1899] ENTOMOLOGICAL SOCIETY. 63 -p. 879. 1889. Lintner—Fifth Rep. N. Y. State-pp. 164-173. 1890. Packard—U. S. Ent. Com. V. Rep., Forest Insects- 1891. Fyles—Am. Rep. Ent. Soc. Ont.—pp. 28, 30. 1893. Harrington— «' —pp. 19, 21. " Lintner—Eighth Rep. N. Y. State—pp. 168, 169. 1894. Fyles—Am. Rep. Ent. Soc. Ont.—pp. 4, & 1896. Marlatt—Revision of the Nematinae of North America—pp. Ill, 112. 1898. Hutt—Am. Rep. Ent. Soc. Ont.—p. 94. Lydasj).; (Colorado Spruce Saw-Fly.) On May 30th several black saw-flies were observed resting on the leaves of an ornamental spruce, the Colorado spruce (Picea fulgens), on the College grounds. These saw-flies had a wing expanse of one inch and a quarter, while the body was nearly three-quarters of an inch in length. On several of the branches were large masses of castings which were over two inches in diameter. These masses of castings were never situated at the ends of the branches, but about mid- way on the branches. The leaves in the neighborhood of the castings had been eaten by the large graenish-black larvse which occupied silk- lined tunnels within the mass. (Fig. 10.) No eggs could be foand at the time the adults were seen. A good spraying of Paris Green was given, since which operation no larvse have been found. It is evident that the Lyda saw fly is a very destructive insect to this spruce, and should conditions ever arise when the larvae were numerous, the damage would be very considerable. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Entomological Society of Ontario; Ontario. Dept. of Agriculture. Toronto, The Society
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872
