First Book of ZoölogyD. Appleton, 1875 - 190 páginas |
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Página x
... Larva and True Worms , 83-85 . CHAPTER XI . HABITS AND STRUCTURE OF INSECTS Mud - wasp , 85-87 ; Mosquito , 88 . CHAPTER XII . HABITS AND STRUCTURE OF INSECTS ( continued ) Young Grasshopper , 89 ; Cast - off Skin of Grasshopper , 90 ...
... Larva and True Worms , 83-85 . CHAPTER XI . HABITS AND STRUCTURE OF INSECTS Mud - wasp , 85-87 ; Mosquito , 88 . CHAPTER XII . HABITS AND STRUCTURE OF INSECTS ( continued ) Young Grasshopper , 89 ; Cast - off Skin of Grasshopper , 90 ...
Página 80
... larva ; the chrysalis is called the pupa ; while the perfect insect is called the imago . These terms are necessary , for without them the proper condition of an insect could not be easily de- scribed . Take , for example , the ...
... larva ; the chrysalis is called the pupa ; while the perfect insect is called the imago . These terms are necessary , for without them the proper condition of an insect could not be easily de- scribed . Take , for example , the ...
Página 81
... Larva ; c , Larva after First Moult ; d , Larva after Second Moult ; e , Pupa ; f Perfect Insect . [ These figures are copied from the Seventh Annual Report of C. V. RILEY , State Entomologist of Missouri . ] except that it has no wings ...
... Larva ; c , Larva after First Moult ; d , Larva after Second Moult ; e , Pupa ; f Perfect Insect . [ These figures are copied from the Seventh Annual Report of C. V. RILEY , State Entomologist of Missouri . ] except that it has no wings ...
Página 82
... larva and pupa are applied to certain stages of their history . The foregoing figure represents the egg and successive stages of the chinch - bug , an insect which has been so de- structive to various crops in the West . The figures are ...
... larva and pupa are applied to certain stages of their history . The foregoing figure represents the egg and successive stages of the chinch - bug , an insect which has been so de- structive to various crops in the West . The figures are ...
Página 84
... larva of an insect comes from the egg , it has its full number of segments at the outset . In the larva of a butterfly , for example , there may be counted , besides the head , twelve segments or rings , and this number does not ...
... larva of an insect comes from the egg , it has its full number of segments at the outset . In the larva of a butterfly , for example , there may be counted , besides the head , twelve segments or rings , and this number does not ...
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Palavras e frases frequentes
551 Broadway abdomen adductor animal antennæ aperture appearance appendages APPLETON attached beetle bird bivalves body bones breathe air butterfly called canker-worm caterpillar cephalo-thorax chrysalis clam claws collected common compound eyes crab crawfish crawling creature creeping disk crustaceans deposit edge eggs examine eyes flattened following figure represents foot fresh-water mussels fresh-water snails gills grass grasshopper hatch head hind-leg hinder insects jaws jointed legs labium land snails larva larvæ Let the pupils ligament lines of growth lobster mandibles mantle maxillæ metatarsus moults mouth mouth-parts muscles mussel myriopods natural nests number of segments operculum oyster pairs of legs palpi palpus portion Price Prof pupa salamander salt-water seen separate shed shell showing side siphon skin species specimens spiders spinnerets spiracles stages surface tentacles thorax thread true insects tube valves vertebral vertebral column wings worms young