. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 34 INSECTS AFFECTING STORED PRODUCTS,. Fig. 8. -Section of horse collar showing holes bored by the lesser grain-borer (Rhizopertha dominica). One-half natural size. (Original.). 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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