. Economic entomology for the farmer and fruit-grower. Beneficial insects. Fig. Work of the round-head apple-borer, Saperda Candida.—a, puncture in which egg is laid ; b, same in section ; <?, hole from which beetle has emerged ; f, same in section ; g, pupa in its cell. Fig. 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 Smith, John Bernhard, 1858-1912. Philadelphia and London, J. B. Lippincott company

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbenefic, bookyear1906