. Class book of economic entomology [microform] : with special reference to the economic insects of the northern United States and Canada. Insect pests; Entomologie; Entomology; Insectes nuisibles, Lutte contre les; Insect pests; Insectes nuisibles. no ECONUUIC ENTOMOLOGY spines; cerci of male narrowing from tip to base and subgenital plai. narrower at apex than at base. ( â. 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


. Class book of economic entomology [microform] : with special reference to the economic insects of the northern United States and Canada. Insect pests; Entomologie; Entomology; Insectes nuisibles, Lutte contre les; Insect pests; Insectes nuisibles. no ECONUUIC ENTOMOLOGY spines; cerci of male narrowing from tip to base and subgenital plai. narrower at apex than at base. ( â. 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 : P. Blakiston's Son


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectentomology, bookyear1