. Bulletin of the Department of Agriculture. Agriculture. 64 BULLETIN ai8, U. S. DEPARTMENT OF AGRICULTURE. genital plate heart shaped; bursa copulatrix with two opposite, strongly chitinized, hornlike, serrated invaginations (fig. 9, C). Alar expanse 15 to 20 mm. Full-grown larva. The full-grown larva (fig. 10, A) is 11 to 13 mm. long, cylindrical, white, with dorsal side strongly suffused with pink. He-^d reddish brown with blackish brown mandibles and the other trophi yellowish. Thoracic shield rather small, divided in the middle, dark brown. [On each side of the thoracic shield is a s


. Bulletin of the Department of Agriculture. Agriculture. 64 BULLETIN ai8, U. S. DEPARTMENT OF AGRICULTURE. genital plate heart shaped; bursa copulatrix with two opposite, strongly chitinized, hornlike, serrated invaginations (fig. 9, C). Alar expanse 15 to 20 mm. Full-grown larva. The full-grown larva (fig. 10, A) is 11 to 13 mm. long, cylindrical, white, with dorsal side strongly suffused with pink. He-^d reddish brown with blackish brown mandibles and the other trophi yellowish. Thoracic shield rather small, divided in the middle, dark brown. [On each side of the thoracic shield is a small, slightly depressed, kidney-shaped spot, thinly chitinized and less pig- mented than the rest of the shield. This purely specific character is easy to observe and may be of some assistance as contributory evidence in a preliminary determina- tion of the pink bollworm in the field (fig. 11).] Anal plate small, dark Y' ^/i ^ ^. 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. Dept. of Agriculture. [Washington, D. C. ?] : The Department : Supt. of Docs. , Govt. Print. Off.


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear