. The transformations (or metamorphoses) of insects (Insecta, Myriapoda, Arachnida, and Crustacea) : being an adaptation, for English readers, of M. Émile Blanchard's "Metamorphoses, moeurs et instincts des insects;" and a compilation from the works of Newport, Charles Darwin, Spence Bate, Fritz Müller, Packard, Lubbock, Stainton, and others. CHRYSALIDES. Magnified to show the wing-cases and the rudimentary antennte and other organs.(After Reaumur.) a. Winirs. /. Antenna, t. Proboscis. jaws of many hard-skinned beetles. The change from the leaf-cutting jaws of the caterpillar to the suction tu
. The transformations (or metamorphoses) of insects (Insecta, Myriapoda, Arachnida, and Crustacea) : being an adaptation, for English readers, of M. Émile Blanchard's "Metamorphoses, moeurs et instincts des insects;" and a compilation from the works of Newport, Charles Darwin, Spence Bate, Fritz Müller, Packard, Lubbock, Stainton, and others. CHRYSALIDES. Magnified to show the wing-cases and the rudimentary antennte and other organs.(After Reaumur.) a. Winirs. /. Antenna, t. Proboscis. jaws of many hard-skinned beetles. The change from the leaf-cutting jaws of the caterpillar to the suction tube of the butterflyis a proof of this unity of plan, and that with different instincts,habits, and methods of life there arise different modifications ofstructures. The examination of the mouth of an eating or man-dibulate insect is very instructive. Take, for instance, one ofthe grasshopper tribe, and examine the different pieces attachedaround the opening down which the food passes into the stomach. The mouth is provided with six articulated pieces :—a labrum,or the upper lip, two mandibles, two jaws, or maxillae, and an 22 TKANSFOKMATIONS OF INSECTS. inferior labrum. Tlie curved appendages to the maxilLx and thelower labrum are palpi. Now in caterpillars the upper lip is wellgrown, and there are two strong mandibles working from
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Keywords: ., bookcentury1800, bookdecade1870, booksubjec, booksubjectcrustacea
