. The biology of insects. Insects -- Biology. 220 THE BIOLOGY OF INSECTS galleries, and the grubs when hatched *' wander about in the passages (Fig. 58, P) and feed in company upon the ambrosia which grows here and there upon the ; Probably each kind of ambrosia beetle " grows its own peculiar fungus in a pure culture," and each female starts a new culture for her offspring by carrying away from the cradle or passage in which she was herself reared a mass of. Fig. 58,—Galleries of Ambrosia Beetles. Platypus (P) and Gnatho- trichus (G) in pine trunk. North America. The smal
. The biology of insects. Insects -- Biology. 220 THE BIOLOGY OF INSECTS galleries, and the grubs when hatched *' wander about in the passages (Fig. 58, P) and feed in company upon the ambrosia which grows here and there upon the ; Probably each kind of ambrosia beetle " grows its own peculiar fungus in a pure culture," and each female starts a new culture for her offspring by carrying away from the cradle or passage in which she was herself reared a mass of. Fig. 58,—Galleries of Ambrosia Beetles. Platypus (P) and Gnatho- trichus (G) in pine trunk. North America. The small circles along the course of the galleries, as seen in cross section of trunk, indicate position of the " cradles," which are shown in side-view at G' (e, egg; /, larvae in various stages; p, pupa; a, adults waiting for emergence). About natural size. After J. M. Swaine. (Canad. Dept. Agric. Ent. Bull. 7, 1914.) spores, either on her head, in her jaws, or in the front region of her stomach, whence they are regurgitated when she has reached a site suitable for the foundation of a new family. Most remarkable perhaps of all the social beetles are two forms of the family Cucujidae recently found by Wheeler living in the hollow leaf-stalks of young Tachigalia trees of. 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 Carpenter, George H. (George Herbert), 1865-1939. New York, The Macmillan Company
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