. Elements of comparative zoology. Zoology. INSECTS. 257 Order VII.—Hemiptera (Bugs). The Hemiptera are the true bugs. The term bug is fre- quently loosely applied, but any true bug has the follow- ing characteristics: Its mouth-parts are not fitted for biting, but for piercing and sucking. They are prolonged. Fig. 78.—Head of seventeen-year locust to show the mouth-parts, etc. a, an- tennae ; e, compound eye; I, labium; md, mandible; mx, maxilla. into a beak, consisting of a fleshy grooved sheath (labium) with four needle-like bristles (mandibles, maxillae) in the groove. This organ is used f
. Elements of comparative zoology. Zoology. INSECTS. 257 Order VII.—Hemiptera (Bugs). The Hemiptera are the true bugs. The term bug is fre- quently loosely applied, but any true bug has the follow- ing characteristics: Its mouth-parts are not fitted for biting, but for piercing and sucking. They are prolonged. Fig. 78.—Head of seventeen-year locust to show the mouth-parts, etc. a, an- tennae ; e, compound eye; I, labium; md, mandible; mx, maxilla. into a beak, consisting of a fleshy grooved sheath (labium) with four needle-like bristles (mandibles, maxillae) in the groove. This organ is used for making holes in plants or flesh, and also serves as a tube through which the bug sucks up the juices found. The bugs have an incomplete meta- morphosis, are hemimetabolous (p. 241), hatching from the egg much in the adult condition, except that wings are 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 Kingsley, J. S. (John Sterling), 1854-1929. New York, H. Holt and Company
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