. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 46 THE SPRING GRAIN-APHIS OR '' GREEN BUG.' '. § 3 Is I CO I 9 â > S) .a 1 ft CO CD EH I. 2. 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 United States. Bureau of Entomology. Washington : G. P. O.

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