. A manual of dangerous insects likely to be introduced in the United States through importations. eggs are laid in crevices beneath the inner 128 A MANUAL OF DANGEROUS INSECTS. layers of bark on old wood, and also on leaves, in clusters of 4 to 30. Eggs yellowishwhite, elongate cylindrical. Larva white, with yellowish-brown head, short white, formed in earthen cell. The larva feeds on the roots several feet underground, doing much damage. The adults feed on the foliage and fruit. Distribution: Europe, Asia, North Africa, and introduced into , P. Handbuch der Pflanz
. A manual of dangerous insects likely to be introduced in the United States through importations. eggs are laid in crevices beneath the inner 128 A MANUAL OF DANGEROUS INSECTS. layers of bark on old wood, and also on leaves, in clusters of 4 to 30. Eggs yellowishwhite, elongate cylindrical. Larva white, with yellowish-brown head, short white, formed in earthen cell. The larva feeds on the roots several feet underground, doing much damage. The adults feed on the foliage and fruit. Distribution: Europe, Asia, North Africa, and introduced into , P. Handbuch der Pflanzenkrankheiten, 3d ed., 1913, vol. 3, pp. 512, , H. J. California Agr. Exp., Sta. Bui. 195, 25 pp., 18 figs. Haltica ampelophaga Leesb. (Vine Flea-beetle. Chrysomelidse; Coleoptera.) Hosts: Grape, willow. Injury: Serious. Defoliation. Description and biology: Adult, length 4 mm.; brilliant green, sometimes deep blue-green. Two generations, first appears in April (France), feeds on leaves. Pass winteras adults at bases of vines, in bark, etc. Pupate in soil. Larva, length 6 mm., black;. Fig. 65.—Vine flea-beetle (Haltica ampelophaga): Adult, larva, and injury, (v. Rendu.) feeds on leaves, flowers, and shoots. Larval period of first generation about a clear yellow, oblong; placed on under surface of leaves in clusters of about 30.(See text fig. 65.) Distribution: France, Italy, Spain, , L. Les Insectes Nuisibles, 1891, p. , G. Entomologie et Parasitologie Agricoles, 1904, p. , p. Handbuch der Pflanzenkrankheiten, 3d ed., 1913, vol. 3, pp. 523, 524. Scelodnota strigicoUis Motschulsky. (Chrysomelidse; Coleoptera.)Host: : Serious pest. Description and biology: Probably similar to grape : , H. F. Indian Insect Life, 1909, p. 359. Brachyrbinus (Otiorhynchus) spp. (Grape Root Weevils. Brachyrhinidse (Otiorhynchidae); Coleoptera.) The weevils of this genus breed at the roots
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