. Elementary entomology. Insects. GROWTH AND TRANSFORMATIONS OF INSECTS 57 cultivated fields, private roadways, banks of ditches and small streams, and pasture lands. Alfalfa land is a favorite place for oviposition, and alfalfa is often seriously injured by this species. It is doubtless due to these egg-laying habits, and to the abundance of food on uncultivated land, that this species always increases enormously on land which has been flooded and then lies idle for a year or two. Most of the eggs are laid in Au- gust and early September. Each female deposits a single egg mass of about one hu
. Elementary entomology. Insects. GROWTH AND TRANSFORMATIONS OF INSECTS 57 cultivated fields, private roadways, banks of ditches and small streams, and pasture lands. Alfalfa land is a favorite place for oviposition, and alfalfa is often seriously injured by this species. It is doubtless due to these egg-laying habits, and to the abundance of food on uncultivated land, that this species always increases enormously on land which has been flooded and then lies idle for a year or two. Most of the eggs are laid in Au- gust and early September. Each female deposits a single egg mass of about one hundred eggs just beneath the surface of the soil. During this season the fe- males may frequently be found with their abdomens thrust deep in the soil, as the process of egg laying requires some time. The eggs are arranged in an irregular yel- low mass which is coated with a gluey sub- stance, to which the earth ad- heres and which protects them from changes of moisture and temperature. Life history of the tent caterpillar (Malacosoma americand). Complete meta- morphosis. With the bursting of the leaf buds in early spring the tips of the branches of apple and wild cherry trees are festooned by the small, tentlike \vebs of the tent caterpillar. Usually the web is formed on a small crotch, which gives it FIG. 73. Web of young tent the tent shape, and farther out on the twig caterPillars over the ^ mass will be found the egg mass from which (Photograph by Weed) the little caterpillars hatched, just before the leaf buds FIG. 72. Egg mass of the tent caterpillar (Photograph by Weed). 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 Sanderson, Dwight, 1878-1944; Jackson, C. F. (Cicero Floyd), b. 1882. Boston, New York [etc. ] Ginn and Company
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