. Bulletin of the Department of Agriculture. Agriculture. Fig. 20.—Fourth stage: Remains of larva dead of sacbrood. (Original.) is often nearer the roof of the cell in this stage than in the preceding one. As a result it has also been drawn inward from the mouth of the cell. The surface markings seen in the normal larva are in this stage (fig. 20; PL II, Ic) of decay almost obhter- ated through the wrinkling of the surface, due to drying. Middle third.—This third is de- cidedly brown, but hghter in shade than the anterior third. The ventral surface (fig. 21; PI. II, q) is shghtly concave
. Bulletin of the Department of Agriculture. Agriculture. Fig. 20.—Fourth stage: Remains of larva dead of sacbrood. (Original.) is often nearer the roof of the cell in this stage than in the preceding one. As a result it has also been drawn inward from the mouth of the cell. The surface markings seen in the normal larva are in this stage (fig. 20; PL II, Ic) of decay almost obhter- ated through the wrinkling of the surface, due to drying. Middle third.—This third is de- cidedly brown, but hghter in shade than the anterior third. The ventral surface (fig. 21; PI. II, q) is shghtly concave from side to side. The segmental markings are stiU to be seen, but are not at aU prominent. The notched lateral mar- gms extend upon the side walls of the cell. The subcuticular fluid so noticeable in some of the earlier stages has disappeared through evaporation. The effect of drying is very noticeable, causing a marked wrinkling of the surface. Posterior third.—The posterior third (PL II, q) may or may not be darker than the middle third, but it is not darker than the anterior Fig. 21.—Fourth stage: Remains of larva dead of sacbrood, ventral view. (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. Dept. of Agriculture. [Washington, D. C. ?] : The Department : Supt. of Docs. , Govt. Print. Off.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
