. Elementary biology, animal and human. Biology. 10 ANIMAL BIOLOGY. the unaided eye this colored substance from the wing ap- pears to have no definite form; in fact, it looks hke the pollen from flowers. An examination with the compound microscope, however, shows that each of these tiny bodies has a definite shape (Fig. 7). Each scale has at one end a tiny stem, but in other re- spects they vary considerably in form. The scales are attached in the follow- ing manner. In the membrane of the wing are openings into which fit the stems of the scales. The latter are Pig. 7. — Scales from arranged i
. Elementary biology, animal and human. Biology. 10 ANIMAL BIOLOGY. the unaided eye this colored substance from the wing ap- pears to have no definite form; in fact, it looks hke the pollen from flowers. An examination with the compound microscope, however, shows that each of these tiny bodies has a definite shape (Fig. 7). Each scale has at one end a tiny stem, but in other re- spects they vary considerably in form. The scales are attached in the follow- ing manner. In the membrane of the wing are openings into which fit the stems of the scales. The latter are Pig. 7. — Scales from arranged in rows and overlap some- wing of a butterfly. ^^.^^ ^.^^ ^^^ ^^.^^^^^ ^^ ^ ^^^^ (Fig. 8). In spite of this arrangement it is evident that the scales are not firmly attached, since the slightest touch is sufficient to dislodge many of them. Rough handling was not apparently plaimed for in the con- struction of these insects. The pres- ence of these scales on the wings of butterflies and of their near relatives, the moths, is so characteristic that these insects have been called the Lepidoptera (Greek, lepido = scale + ptera = wings). Not only are scales found on the wings but, in the shape of hairs, they form a fuzzy growth ^ wingof^butterfl?with over the surface of the whole body. scales. (Coleman.). 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 Peabody, James Edward, b. 1869; Hunt, Arthur Ellsworth, joint author. New York, The Macmillan company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiology, bookyear1912
