. Animals of land and sea. Zoology; Insects; Zoology. 64 ANIMALS OF LAND AND SEA into them as they slept, and, much more frequently, by larvae hatched from eggs laid in the nose or on sores and ulcers. A few flesh-flies hve in excrement or in rotting plants, and some in other insects and in snails. Since, if exposed, a dead bird or rat would soon be consumed by flies, some of the large carrion beetles go to great pains to bury the car- cass in the ground out of reach of the flies, thus insur- ing a supply of food for their own young. The excre- ment of animals forms the food of many sorts of f
. Animals of land and sea. Zoology; Insects; Zoology. 64 ANIMALS OF LAND AND SEA into them as they slept, and, much more frequently, by larvae hatched from eggs laid in the nose or on sores and ulcers. A few flesh-flies hve in excrement or in rotting plants, and some in other insects and in snails. Since, if exposed, a dead bird or rat would soon be consumed by flies, some of the large carrion beetles go to great pains to bury the car- cass in the ground out of reach of the flies, thus insur- ing a supply of food for their own young. The excre- ment of animals forms the food of many sorts of flies and beetles, and some moths; and some of the beetles, like the scarabs, bury balls of it in the same way that sexton beetles bury carcasses. Its odor, like that of carrion, is highly attractive to many butterflies. Many flowers have one or other of these odors, and thus attract the corresponding insects. From this brief sketch, which might be indefinitely length- ened and is perhaps too short, it is clear that insects feed not only upon vegetable material in all forms, but upon each other, upon all other kinds of animal matter both living and dead, and upon all kinds of waste material. In other words, where- ever in nature there exists a constant supply, continuous or intermittent, of any substance whatsoever available as insect food, some insect t}'pe makes use of it. Many insects, and even large groups of insects, are extra- ordinarily restricted in their diet, for instance the cockroach. Fig. 41. A Macrourid. For explanation of the figure see p. 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 Clark, Austin Hobart, b. 1880. New York, D. Van Nostrand company
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecti, booksubjectzoology
