Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . FIG. 340.—Northern army-worm, a, moth, with details.—After Riley. hibernates in the chrysalis state, laying its eggs in Apriland May, but later northward. The eggs hatch, the youngappearing eight or ten days after, and the worms are most INSECTS INJURIOUS TO AGRICULTURE. 197 destructive in a wet summer succeeding a dry one, at thetime when the wheat is in the milk. The caterpillar statelasts a month; the chrysalis state two weeks, unless it hiber-nates. The caterpillar is an inch and a half long; the
Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . FIG. 340.—Northern army-worm, a, moth, with details.—After Riley. hibernates in the chrysalis state, laying its eggs in Apriland May, but later northward. The eggs hatch, the youngappearing eight or ten days after, and the worms are most INSECTS INJURIOUS TO AGRICULTURE. 197 destructive in a wet summer succeeding a dry one, at thetime when the wheat is in the milk. The caterpillar statelasts a month; the chrysalis state two weeks, unless it hiber-nates. The caterpillar is an inch and a half long; the head iscovered by a network of confluent spots, and along themiddle of the face run two lines diverging at each end. Alight-colored waved line just above the legs is succeeded by adark one, then a light one edged with two thread-lines;while the upper part of the body is dark, with an inter-rupted white thread running along the middle of the moth is rusty, grayish-brown, sprinkled with blackspecks; and the species is called unipuncta from the singlewhite discal dot of the fore
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectinsects
