Structure and classification of insects . BASE or UNDER SIDE OF WING CASE OP GREEN GRASS-HOPPER BY WHICH THE SOUND IS PRODUCED, (aCEIDA viridissima). The elytra are such as the hard and often beautifullymarked wing covers of the beetles or coleoptera. By t^e term tegmina are designated the straight,shield-like wing covers of such insects as the grasshop-pers, locusts, katy-dids, and the like. f)4 THE THORAX OB The licinelytra are the wing covers of such insects aswe ordinarily denominate bugs; they are half horny andhalf membranous. While these three :ire merely wing-covers, those del
Structure and classification of insects . BASE or UNDER SIDE OF WING CASE OP GREEN GRASS-HOPPER BY WHICH THE SOUND IS PRODUCED, (aCEIDA viridissima). The elytra are such as the hard and often beautifullymarked wing covers of the beetles or coleoptera. By t^e term tegmina are designated the straight,shield-like wing covers of such insects as the grasshop-pers, locusts, katy-dids, and the like. f)4 THE THORAX OB The licinelytra are the wing covers of such insects aswe ordinarily denominate bugs; they are half horny andhalf membranous. While these three :ire merely wing-covers, those deli-cate membranous organs that serve exclusively the pur-poses of flight, may alone properly be called will for a moment turn our attention to the composition or structure of these. The wings of insects, as we have intimated before,consii^t of the breathing tubes, everted from the body,and covered over with a thin membrane, which in somekinds is plain, and in others decked with hairs, scales,hooks, &G. Tile lirger of tlicse tubes are called the veins^ andtheir branches the vei)dets^ or often they are termed thelines of iieuration^ or nervures. THE TUORAX OK TKt-NK. /).>
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872
