. Elements of zoölogy. Zoology. INSECTS. 121 Note.—In 1864 chinch-bugs caused a loss in wheat and corn of $100,000,000 ; and in 1850 their ravages in Illinois alone amounted to ,000, Fig. 147.—Different stages of the chinch-bug. a, egg; b, newly-hatched larva; c, larva after first molt; d, larva after second molt; e, pupa ; /, perfect insect. Water-Measure Insects (Hydrometridcz).—These are narrow, boat-shaped insects, having long legs with which they dart over ponds and streams. The Halobates (Fig. 148) is found on the ocean, hundreds of miles from land, with its eggs. Water-Boatman (Not
. Elements of zoölogy. Zoology. INSECTS. 121 Note.—In 1864 chinch-bugs caused a loss in wheat and corn of $100,000,000 ; and in 1850 their ravages in Illinois alone amounted to ,000, Fig. 147.—Different stages of the chinch-bug. a, egg; b, newly-hatched larva; c, larva after first molt; d, larva after second molt; e, pupa ; /, perfect insect. Water-Measure Insects (Hydrometridcz).—These are narrow, boat-shaped insects, having long legs with which they dart over ponds and streams. The Halobates (Fig. 148) is found on the ocean, hundreds of miles from land, with its eggs. Water-Boatman (Notonectidee). —These aquatic insects dart about upon their backs with great rapidity, using their hind-legs, that are edged with' strong cilia, and blade-like, as oars. They fly, swim, and dive with equal ease. The eggs are attached to aquatic plants. Harvest-Flies (Cicadidce).— The seventeen-year Cicada (Fig. 149) is wedge-shaped, with a broad head and prominent eyes. The shrill sound is made by a drum like organ at the base of the abdomen. The eggs, nura. 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 Holder, Charles Frederick, 1851-1915; Holder, Joseph Bassett, 1824-1888, joint author. New York : D. Appleton and company
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1884
