. First[-ninth] annual report on the noxious, beneficial and other insects, of the state of Missouri, made to the State board of agriculture, pursuant to an appropriation for this purpose from the Legislature of the state . ble pattern, and adorned withevery conceivable color, so as to rival the delicate hues of the rain-bow, and eclipse the most fantastic and elaborate designs of manWhen magnified, the scales, to which this beauty of pattern and col-oring is entirely due, present all manner of shapes, according to theparticular species or the particular part of the individual from whichthey a
. First[-ninth] annual report on the noxious, beneficial and other insects, of the state of Missouri, made to the State board of agriculture, pursuant to an appropriation for this purpose from the Legislature of the state . ble pattern, and adorned withevery conceivable color, so as to rival the delicate hues of the rain-bow, and eclipse the most fantastic and elaborate designs of manWhen magnified, the scales, to which this beauty of pattern and col-oring is entirely due, present all manner of shapes, according to theparticular species or the particular part of the individual from whichthey are taken. According to Lewenhoeck, there are 400,000 of thesescales on the wing of the common silk-worm. The transformations of these insects are complete, and the changesare usually so sudden and striking, as to have excited the wonder andadmiration of observers from earliest times. The more common form of the larva is exampled in the ordinarycaterpillar —a cylindrical worm with a head, twelve joints and a sub-joint; SIX thoracic or true legs, four abdominal and two anal there is a great variety of these larvae, some having no legs what-ever, some having only the jointed legs, and others having either. 12 FIFTH ANNUAL REPORT four, six, eight or ten, but never more than ten, prolegs. With fewexceptions they are all vegetable feeders, and, with still fewer excep-tions, terrestrial. The perfect insects make free use of their amplewings, but walk little ; and their legs are weak, and not modified in thevarious ways so noticeable in other orders, while the front pair insome butterflies arfe impotent. As an Order this must be considered the most injurious of theseven. A convenient system of classification for the Lepidopierai^ basedon the structure of the antennae. By it we get two great sections:1st, Butterflies (Riiopalocera); 2nd, Moths (Heterocera), which lat-ter may again be divided into Crepuscular and Nocturnal are at once distinguished from mo
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectb, booksubjectinsects
