. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. r Fig. 82.—Hemispherical scale (Saissetia hemisphaerica) on fern. Natural size. (After Forbes.). Fig. 83.—Hemispherical scale, enlarged. (.After Forbes.). 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 Lochhead, William, 1864-1927. Philadelphia : B
. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. r Fig. 82.—Hemispherical scale (Saissetia hemisphaerica) on fern. Natural size. (After Forbes.). Fig. 83.—Hemispherical scale, enlarged. (.After Forbes.). 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 Lochhead, William, 1864-1927. Philadelphia : Blakiston
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1919
