. Manual of vegetable-garden insects. y May but the greater number during June and July. Thefull-grown caterpillar is \^inches in length, dirty whitewith a greenish tinge andhas a translucent glassyappearance; the head isreddish brown. Pupationtakes place in earthen inches in length by finch in width. These cellsare formed a few inchesbelow the surface of theground. The pupa is nearly an inch in length and of areddish brown color. The moth has an expanse of 1^ to If inches. The frontwings are pale ashy gray to dark brownish gray, mottled withdarker brown. The subterminal transverse li
. Manual of vegetable-garden insects. y May but the greater number during June and July. Thefull-grown caterpillar is \^inches in length, dirty whitewith a greenish tinge andhas a translucent glassyappearance; the head isreddish brown. Pupationtakes place in earthen inches in length by finch in width. These cellsare formed a few inchesbelow the surface of theground. The pupa is nearly an inch in length and of areddish brown color. The moth has an expanse of 1^ to If inches. The frontwings are pale ashy gray to dark brownish gray, mottled withdarker brown. The subterminal transverse line is whitish andusually distinct. On the inner margin of this line is a row offive or six wedge-shaped black spots. The hind wings arebrownish, darker on the outer third (Fig. 168). There is ap-parently but a single brood annually, the eggs being laid in thelatter part of the season, the greater number after August first. References Forbes, 23rd Kept. State Ent. 111., pp. 19-20. Agr. Canada Ent. Bull. 10, pp. 24-25. Fig. 168. — The glassy cutworm moth(X H). CUTWORMS AND ARMY-WORMS 281 The Yellow-Headed Cutworm Hadena nrctica Boisduval Like the glassy cutworm, this species hves from one to twoinches below the surface of the ground, feeding on the rootsand cutting off the underground stems of plants. The mothsare attracted to lights in great numbers and are often seen;the caterpillars, however, have not elicited as much attentionby their injuries as would be expected. It is primarily a fieldcrop pest injuring grasses, oats, wheat and corn. It also feedson cabbage, spinach, turnip, lettuce and the succulent shootsof roses and currants. The insect is widely distributed through-out the northern United States and Canada. The winter is passed as partly grown caterpillars. Thelarviie are most destructive in May and June. The full-growncaterpillar is 1^ inches inlength and closely resemblesthe glassy cutworm, fromwhich it may be distin-guished by its yellow
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