Insects injurious to fruits . ounding wood, and within this it changes to a pupa, asseen at b, from which the beetle escapes about ten days after-wards; e represents the antenna of the larva, and/one ofits legs, both magnified. This insect is common throughout the Eastern and WesternStates and the central portions of Canada. Should it at anytime prove injurious, it can easily be reduced in numbers byhand-picking. It feeds also on the Virginia creeper, Ampe-lopsis quinquefolia. No. 150.—The Grape-vine Flea-beetle. Graptodera chalyhea (Illig.). This pretty but destructive little beetle (see Fig.
Insects injurious to fruits . ounding wood, and within this it changes to a pupa, asseen at b, from which the beetle escapes about ten days after-wards; e represents the antenna of the larva, and/one ofits legs, both magnified. This insect is common throughout the Eastern and WesternStates and the central portions of Canada. Should it at anytime prove injurious, it can easily be reduced in numbers byhand-picking. It feeds also on the Virginia creeper, Ampe-lopsis quinquefolia. No. 150.—The Grape-vine Flea-beetle. Graptodera chalyhea (Illig.). This pretty but destructive little beetle (see Fig. 286)forces itself upon the attention of grape-growers very prom-inently in the spring season, when, awakened by the revivingwarmth of the sun from its winter state of torpidity, andwith appetite sharpened by its long fast, it commences its work 278 nXSKCTS INJURIOUS TO THE G/iAPJ:. of destriution by eating away the substance of ihe buds assoon as they begin to swell, thus destroying many i)unches of Fig. 286. I*f Fio. grapes in, embryo. It goeson with this work for abouta month, when it graduallydisappears. Before leaving,however, the beetle providesfor the continuance of itsrace by depositing littleclusters of orange-coloredeggs on the under side ofthe young vine leaves, whichin a few days produce colo-nies of small, dark-brownlarvae, which feed on theupper side of the leaves,riddling them, and whennumerous they devour thewhole leaf except the largerveins, and sometimes en-tirely strip the vines of foli-age. Fig. 287 representsthe larvfB in various stagesof growth at work on the vino, accompanied also by someof the beetles. In three or four weeks the larva attains full growth, whinit is a little more than three-tenths of an inch lung, usually ATTACKING THE LEAVES. 279 of a light-brown color, sometimes dark, and occasionally palerand yellowish. The head is black, and there are six or eightshining black dots on each of the other segments of the body,each dot emitting a
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