. 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. 184 ECONOMIC ENTOMOLOGY Adult.—General color a deep velvety blue black. Fore wings with two large circular pale yellow spots, and hind wings with two smaller white spots. Wing expanse il^ inches. May-July. Single brooded. Larva.—One and two-fifth inches long; bluish-brown; head and cervi- cal shield bright orange with black spots. Each segment crossed with black, white and orange bands; eleventh segment with a prominen
. 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. 184 ECONOMIC ENTOMOLOGY Adult.—General color a deep velvety blue black. Fore wings with two large circular pale yellow spots, and hind wings with two smaller white spots. Wing expanse il^ inches. May-July. Single brooded. Larva.—One and two-fifth inches long; bluish-brown; head and cervi- cal shield bright orange with black spots. Each segment crossed with black, white and orange bands; eleventh segment with a prominent hump; legs black; base of prolegs orange. Full grown in early August. Pupa.—A chrysalis within a slight cocoon just below the surface of the ground. Hibernates. Parasites.—Winthemia ^-pustulata Fab.—A tachinid. Control.—Spray the larvae with arsenate of lead or pyrethrum. NOCTUID^ (OWLET OR MILLER MOTHS) According to their manner of feeding on plants the larvae of Noctuids may be classified roughly into: {a) Cutworms proper, feeding on roots. \\5. Lh. 'LP. Fig. 123.—Mouth parts of a caterpillar, the striped cutworm (Euxoa tessellala): Ant., antennse; CI., clypeus; Lb., labium; Md., mandible; Mp., palpus; Lbr., labrum; Mx., maxilla; S., spinneret. of grasses and cutting off young plants at surface, {b) Army-worms, eating the leaves of cereal and other crops, (c) Climbing cutworms, feeding on buds of fruit trees, {d) Loopers and caterpillars, feeding on leaves of turnip, cabbage, celery and other plants, {e) Ear-worms, feeding on kernels of corn in the field. (/) Stalk-borers, feeding in tunnels made in stems, {g) Green Fruit-worms, feeding on the surface. 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
