. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. Fig. 2.—Work of Scolytus rugu- losus in twig of apple—natural size. (U. S. Dep't. of Agri- culture). a h Fig. 3.—Galleries of Scolytus rugulosus on twig under bark ; a, a, main gal- leries ; b, b, side or larval galleries ; c, c, pupal cells—natural size—(after Katzeburg, from U. S. Dep't. of Agri- culture').. 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

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. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. Fig. 2.—Work of Scolytus rugu- losus in twig of apple—natural size. (U. S. Dep't. of Agri- culture). a h Fig. 3.—Galleries of Scolytus rugulosus on twig under bark ; a, a, main gal- leries ; b, b, side or larval galleries ; c, c, pupal cells—natural size—(after Katzeburg, from U. S. Dep't. of Agri- culture').. 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, booksubjectinsectp, bookyear1872