. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. 3i6 ECONOMIC ENTOMOLOGY Adult.—Bluish-black, }yi inch long. Natural hosts are smartweed and dock. Eggs.—^Laid in autumn. Pale-striped Flea Beetle {Systena blanda Mels.).—This Flea beetle attacks a large number of vegetable crops in June-July. Grapevine Flea Beetle {Haltica chalyhea 111.).—(Consult Bull. 157, Cornell Ag. Exp. Stn., 1898.) The early adults injure the buds of grapes. Fig. 206.—The grapevine flea beetle {H
. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. 3i6 ECONOMIC ENTOMOLOGY Adult.—Bluish-black, }yi inch long. Natural hosts are smartweed and dock. Eggs.—^Laid in autumn. Pale-striped Flea Beetle {Systena blanda Mels.).—This Flea beetle attacks a large number of vegetable crops in June-July. Grapevine Flea Beetle {Haltica chalyhea 111.).—(Consult Bull. 157, Cornell Ag. Exp. Stn., 1898.) The early adults injure the buds of grapes. Fig. 206.—The grapevine flea beetle {Haltica chalybea): a, adult beetle; b, larva or grub; c, beetles and larvae on foliage—natural size; d, beetle feeding on bud; e, diseased beetles. {After Marlatl, U. S. Bur. Ent.) and Virginia creeper while the larvae and late adults riddle the leaves. A native insect (Fig. 206). Adult.—A polished steel-blue, or sometimes purplish, flea beetle, }q inch long; antennae and legs brownish black or piceous; thorax distinctly wider at base. Hibernates. Eggs.—Orange-colored, long-oval; laid in crevices of the bark near base of buds, or on the leaves. One-thirtieth inch long. Larva.—^Lightish-brown, ^{q inch long; head and thoracic shield black; 6-8 shining black dots on each segment, a brown hair on each dot;. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lochhead, William, 1864-1927. Philadelphia : Blakiston
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1919
