Elementary textbook of economic zoology Elementary textbook of economic zoology and entomology . elementarytextbo00kell Year: [c1915] SLIME SLUGS, MYRIAPODS AND INSECTS 149 edies for these injuries, may be very different in different stages of the insect's life. DEVELOPMENT AND METAMORPHOSIS Although moths and butterflies are hatched from the egg in a condition extraordinarily different in appearance from that which they finally assume, not all insects undergo so great a metamorphosis during their development. For example, a just-hatched grasshopper is unmistakably grasshopper-like in FIG.
Elementary textbook of economic zoology Elementary textbook of economic zoology and entomology . elementarytextbo00kell Year: [c1915] SLIME SLUGS, MYRIAPODS AND INSECTS 149 edies for these injuries, may be very different in different stages of the insect's life. DEVELOPMENT AND METAMORPHOSIS Although moths and butterflies are hatched from the egg in a condition extraordinarily different in appearance from that which they finally assume, not all insects undergo so great a metamorphosis during their development. For example, a just-hatched grasshopper is unmistakably grasshopper-like in FIG. 65.—Metamorphosis, incomplete, of an assassin-bug (family Red iivi idee, order Hcmlptcra}. A, Young just hatching from eggs; B, young after first molting, showing beginning wing-pads; C, older stage with larger wing-pads; D, adult with fully developed wings. (%%%% larger than natural size.) appearance, although it has no wings and the proportions of the different parts of its body are somewhat different from those of its parents. The young grasshopper has three pairs of legs, has a head with antennae, compound eyes and biting mouth- parts like those of its parent, walks and hops about, feeding on green plants, and altogether looking and acting much as fully developed grasshoppers do, except that it has no wings and hence cannot fly. As it grows, however, wings begin to appear as tiny bud-like expansions on the back of the two
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