. Elementary textbook of economic zoology and entomology. Zoology; Insect pests. INSECTS INJURIOUS TO GARDEN TRUCK 481 abundant in gardens, but they did not bore into the head of the cabbage as the invader does, and so were not such serious pests. Because it breeds more prolifically and feeds earlier and later in the season the imported species has almost or quite driven the others from the garden. The familiar white cab- bage-butterflies, with their black-tipped fore wings, appear early in the spring and lay their eggs on almost any available. FIG. 228.—The imported cabbage-butterfly, Pontia
. Elementary textbook of economic zoology and entomology. Zoology; Insect pests. INSECTS INJURIOUS TO GARDEN TRUCK 481 abundant in gardens, but they did not bore into the head of the cabbage as the invader does, and so were not such serious pests. Because it breeds more prolifically and feeds earlier and later in the season the imported species has almost or quite driven the others from the garden. The familiar white cab- bage-butterflies, with their black-tipped fore wings, appear early in the spring and lay their eggs on almost any available. FIG. 228.—The imported cabbage-butterfly, Pontia rapes; male above, female below. (Natural size.) food. In the south the adults may be found at all times of the year. The female has two black spots in the disc of each fore wing,the male only one. Both sexes have a spot on the anter- ior margin of the hind wing. The larvae are velvety green with a faint yellowish line above and yellowish spots on the sides. The pupae, or chrysalids, are usually found on the underside of leaves, on rocks, fences or other objects. The insect usually passes the winter in the field in the pupal stage. 31. 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 Kellogg, Vernon L. (Vernon Lyman), 1867-1937; Doane, Rennie Wilbur, 1871-. New York, H. Holt and company
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