. 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. CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS 267 Eggs.—Elliptical, yellowish, pedicellate, }io inch long; laid singly just under the skin of the apple; hatch in 4-10 days. Larva.—A small plump white legless maggot, 3^ inch long; mouth- parts with a pair of small black rasping hooks; caudal end truncate;. Fig. 169.—A female of the apple maggot fly (Rhagoletis pomonella). M uch enlarged. {After W. H. Brittain.) makes
. 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. CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS 267 Eggs.—Elliptical, yellowish, pedicellate, }io inch long; laid singly just under the skin of the apple; hatch in 4-10 days. Larva.—A small plump white legless maggot, 3^ inch long; mouth- parts with a pair of small black rasping hooks; caudal end truncate;. Fig. 169.—A female of the apple maggot fly (Rhagoletis pomonella). M uch enlarged. {After W. H. Brittain.) makes soft discolored trails and corky strands in the pulp; full grown in 4-6 weeks, or when the infested fruit is ripe. Infested apple usually falls, and larvae leave the fruit i to 4 weeks later to enter the ground (Fig. 170).. 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, 1864-1927. Philadelphia : Blakiston
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1919
