. Insects, injurious and beneficial, their natural history and classification, for the use of fruit growers, vine growers, farmers, gardeners and schools . or larva. When the egg is deposited in the body of a larva,the larva sometimes assumes the pupa form before the para-sitic Ichneumon Fly issues. Fig. The Chalcis Flies form another group of insects which liveparasitically in the eggs, larvae or pupa; of other insects ; theyare verv small, and their wings are provided with but few9 130 NATURAL HISTORY OF INSECTS. veins (Figs. 333 and 334). They live principally in the eggsof other inse
. Insects, injurious and beneficial, their natural history and classification, for the use of fruit growers, vine growers, farmers, gardeners and schools . or larva. When the egg is deposited in the body of a larva,the larva sometimes assumes the pupa form before the para-sitic Ichneumon Fly issues. Fig. The Chalcis Flies form another group of insects which liveparasitically in the eggs, larvae or pupa; of other insects ; theyare verv small, and their wings are provided with but few9 130 NATURAL HISTORY OF INSECTS. veins (Figs. 333 and 334). They live principally in the eggsof other insects, and many kinds infest various kinds of ScaleInsects and Plant-lice. Another class of parasitic insects is the Tachina Flies (). These flies attach their white eggs to the bodies ofcaterpillars, etc., and the larvae which hatch from these eggsgnaw their way into the body of their victim; here theyremain until reaching their full growth, when they gnaw theirway out and drop to the ground, which they enter and formsmooth cells; they do not cast their skins before pupating,but these contract and harden, thus supplying the place of acocoon. At the proper time the perfect fly (Fig. 236) issuesand makes her way to the surface of the earth. This fly veryclosely resembles the common House Fly, but m
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectinsects, bookyear1883
