. The external and internal parasites of [man and] domestic animals. fan shaped, and can be foldedup like a fan beneath the frontwings, folded gen-erally lie lengthwise of the body,forming a sort of roof. The mandibles and maxillaeare chewing organs. The larvaehave nearly the same form as theadults, but lack wings ; they havesimilar habits; the pupae are also active. Most of theseinsects, except the Mantis, are injurious to vegetation by eat-ing the leaves. VII. Neuroptera (nerve-winged). The dragon-flies, lace- •winged flies (Figure 15), May ^ig-1^. fflies, Lepisma (Figure 3), and
. The external and internal parasites of [man and] domestic animals. fan shaped, and can be foldedup like a fan beneath the frontwings, folded gen-erally lie lengthwise of the body,forming a sort of roof. The mandibles and maxillaeare chewing organs. The larvaehave nearly the same form as theadults, but lack wings ; they havesimilar habits; the pupae are also active. Most of theseinsects, except the Mantis, are injurious to vegetation by eat-ing the leaves. VII. Neuroptera (nerve-winged). The dragon-flies, lace- •winged flies (Figure 15), May ^ig-1^. fflies, Lepisma (Figure 3), and white ants, belong to this order. The wings, when present, are ,thin, membranous, and subdivided by very numerous rods or nervures into small spaces, which are often squarish. The mandibles and maxillae are chewing organs. The abdomen is generally long. The larvae are of many forms, often aquatic, generally carnivorous and predacious in habits, and usually undergo a complete metamorphosis ; the pupae are mostly inactive. Most insects of this order, excepting the.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectparasit, bookyear1870
