. Text-book of zoology for schools and colleges. Zoology. INSECTA. 151 one another very mucli in appearance, and the metamorphosis is therefore said to be " complete " (Fig. 64). In these insects the larva is worm-like, segmented, and usually furnished with loco- motive feet, which do not correspond with the three pairs proper to the adult (see Fig. 71, b), though these are usually present as well. The larva is also provided with masticating organs,. Fig. 64.—-Metamorphosia of the Magpie-moth {Phalana groamUariata). and eats voraciously. In this stage of the metamorphosis, the larvae
. Text-book of zoology for schools and colleges. Zoology. INSECTA. 151 one another very mucli in appearance, and the metamorphosis is therefore said to be " complete " (Fig. 64). In these insects the larva is worm-like, segmented, and usually furnished with loco- motive feet, which do not correspond with the three pairs proper to the adult (see Fig. 71, b), though these are usually present as well. The larva is also provided with masticating organs,. Fig. 64.—-Metamorphosia of the Magpie-moth {Phalana groamUariata). and eats voraciously. In this stage of the metamorphosis, the larvae constitute what are popularly known as " caterpillars " or " ; Having remained in this condition for a longer or shorter time, and having undergone repeated changes of skin, necessitated by its rapid growth, the larva passes into the second stage, and becomes a pupa (Fig. 64—see also Fig. 71). In this stage the insect remains quiescent, unless irri- tated, and it is very often attached to some foreign object, so as to be quite incapable of changing its place. In the case of the butterflies and moths, the pupa constitutes what is so familiarly known as the " ; The body is protected by a chitinous pellicle, and in some cases this is still further protected by the dried skin of the larva; while in other cases the larva—immediately before entering the pupa stage—spins. 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 Nicholson, Henry Alleyne, 1844-1899. New York, D. Appleton and Co.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1884
