Insects injurious to fruits . iJ^ the tender progeny are more to its liking, and these areproduced in sufficient numbers to furnish it with a constantsupply of fresh food. In some instances one larva, in otherstwo are found in a single gall, and as they increase in sizethey devour the lice very rapidly, and before changing to the 240 INSECTS INJURIOUS TO THE pupa state clear the gall entirely of its contents. The larva(Fig. 247, a) is about one-tenth of an inch long, of a pale pinkish-yellow color, glossyFio- 247. and semi-transparent, with a (lark line clown the back ontiie two anteri
Insects injurious to fruits . iJ^ the tender progeny are more to its liking, and these areproduced in sufficient numbers to furnish it with a constantsupply of fresh food. In some instances one larva, in otherstwo are found in a single gall, and as they increase in sizethey devour the lice very rapidly, and before changing to the 240 INSECTS INJURIOUS TO THE pupa state clear the gall entirely of its contents. The larva(Fig. 247, a) is about one-tenth of an inch long, of a pale pinkish-yellow color, glossyFio- 247. and semi-transparent, with a (lark line clown the back ontiie two anterior and someof the posterior the terminal segmentthere are two short, fleshyhorns united by a slightridge; the horns are tippedwith brownish black, andhave a minute cluster ofspines at their summit. The pupa shown at h inthe figure, is a little lessthan one-tenth of an inchin length, of a reddish-brown color, with a few short hairs scattered over its surface,and two blackish horns united by a ridge near the hinder ex-tremity. Both the pupa and the larva are magnified. The perfect insect escapes in about a fortnight after thepupa is formed. It is a very pretty little two-winged fly,shown much magnified at c in the figure, and of its naturalsize at d. The Pliylloxera is also preyed on by the larva of a dull-colored lady-bird, a species of Scymnus, b
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Keywords: ., bookcentury1900, bookdecade1900, bookidin, booksubjectinsectpests
