. A manual for the study of insects. Insects. 192 THE STUDY OF INSECTS. upon the wings. With some of the lower moths the scales are scattered irregularly over the wings. But if the wing of one of the higher butterflies be examined with a microscope, the scales will be found arranged in regular, overlapping rows; the arrangement being as reg- ular as that of the scales on a fish or of the shingles on a roof (Fig. 231). In the upper part. of the figure the membrane is Fig. 231.—Part of wing of butterfly, greatly magnified. represented with the scales re- moved. The use of the scales on the wings
. A manual for the study of insects. Insects. 192 THE STUDY OF INSECTS. upon the wings. With some of the lower moths the scales are scattered irregularly over the wings. But if the wing of one of the higher butterflies be examined with a microscope, the scales will be found arranged in regular, overlapping rows; the arrangement being as reg- ular as that of the scales on a fish or of the shingles on a roof (Fig. 231). In the upper part. of the figure the membrane is Fig. 231.—Part of wing of butterfly, greatly magnified. represented with the scales re- moved. The use of the scales on the wings is to strengthen them. We thus see that the wings of these insects are furnished with much fewer cross veins than are the wings of similar size in other orders. A secondary use of these scales is that of ornamentation ; for the beautiful colors and markings of these insects are due entirely to the scales, and are destroyed when the scales are removed. Upon the body, legs, and. 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 Comstock, John Henry, 1849-1931; Comstock, Anna Botsford, 1854-1930. joint author. Ithaca, N. Y. , Comstock Pub. Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
