. 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 iH 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
. 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 iH 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 4-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. Fig. 123.—Mouth parts of a caterpillar, the striped cutworm (Euxoa tessellata): Ant., antennae; CI., clypeus; Lb., labium; Md., mandible; Mp., maxillary 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-. Philadelphia, Blakiston
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1919
