. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. J . —• " Fig. 19.—Estk/mrne acrxa: a, male moth; h, lialf-grown larva; ^, mature larva, lateral view; d, head of same, front view; e, egg mass—all slightly enlarged except d, more enlarged (from Chittenden). EGG. The eggs were nearly round, about two-thirds of a millimeter in diameter, and, when first deposited, of a pale yellow color. The surface of each was slightly granular in appearance. As the embryo became nearly developed the color of the egg changed to a dull blue, with a black spot near the middl


. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. J . —• " Fig. 19.—Estk/mrne acrxa: a, male moth; h, lialf-grown larva; ^, mature larva, lateral view; d, head of same, front view; e, egg mass—all slightly enlarged except d, more enlarged (from Chittenden). EGG. The eggs were nearly round, about two-thirds of a millimeter in diameter, and, when first deposited, of a pale yellow color. The surface of each was slightly granular in appearance. As the embryo became nearly developed the color of the egg changed to a dull blue, with a black spot near the middle of the top. Hatching occurred in four or five days. The percentage failing to hatch was very small and no para- sites were developed in this lot of eggs. LARVA. As they left the eggs the larva? were about ™™ long. Their color was a uniform dark brown, and the length of the hairs was nearly equal to that of their l)odies. 22104—No. 44—04 6. 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: ., bookcentury1800, booksubjectentomology, booksubjectinsects, booky