. Elements of zoölogy. Zoology. INSECTS. 125 each side of the thorax, and emit a vivid light visible even in broad daylight. Note.—The light of the common fire-fly {Lampyris) gives a spec- trum from which blue and violet are omitted. Jaeger, the naturalist, states that the Elaters were frequently the means of saving his life, by lighting his way out of the dense forests of St. Fig. 154.—Diving-beetle ^Dytiscus marginalis). g, grub, showing pincers. Diving-Beetles {Dytiscidce) —These aquatic beetles (Fig. 154) are of an oval or rounded form, with the pos- terior legs fringed for swimm
. Elements of zoölogy. Zoology. INSECTS. 125 each side of the thorax, and emit a vivid light visible even in broad daylight. Note.—The light of the common fire-fly {Lampyris) gives a spec- trum from which blue and violet are omitted. Jaeger, the naturalist, states that the Elaters were frequently the means of saving his life, by lighting his way out of the dense forests of St. Fig. 154.—Diving-beetle ^Dytiscus marginalis). g, grub, showing pincers. Diving-Beetles {Dytiscidce) —These aquatic beetles (Fig. 154) are of an oval or rounded form, with the pos- terior legs fringed for swimming, and feet provided with suckers (Fig. 155). The larvae are ferocious creatures, called water-tigers (Fig. 154, g), having flattened heads and scissor-like jaws, with which they capture small fishes, tad- poles, and insects. The body ends in a pair of respiratory tubes, that are thrust into the air. When ready to change, the larva creeps ashore, builds a round cell, and in five. 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
