. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Fig. 15.—The pine sawyer. Epg, preatly enlarged: a, Chorion; b, amnion; c, micropyle; e, same, highly magnifled; d, sculpture of chorion. (Orig- inal.). 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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Keywords: ., bookcentury1900, bookdecade1900, booksubje, booksubjectentomology