. Goldfish breeds and other aquarium fishes, their care and propagation; a guide to freshwater and marine aquaria, their fauna, flora and management. Aquariums; Goldfish. AQUATIC INSECTS OF FRESHWATER. FIG. 205. Shore-bug, Salda signoretti. Enlarged. Streams and marshes. The toad-like appearance, the short and broad body, mottled color and protruding eyes led to the popular designation. They are ^ to % inch long, are all predaceous and live principally on spawn, insect larvs and small snails. The most generally distributed species of the United States are Galgulus oculatus, Pelogonus americanu
. Goldfish breeds and other aquarium fishes, their care and propagation; a guide to freshwater and marine aquaria, their fauna, flora and management. Aquariums; Goldfish. AQUATIC INSECTS OF FRESHWATER. FIG. 205. Shore-bug, Salda signoretti. Enlarged. Streams and marshes. The toad-like appearance, the short and broad body, mottled color and protruding eyes led to the popular designation. They are ^ to % inch long, are all predaceous and live principally on spawn, insect larvs and small snails. The most generally distributed species of the United States are Galgulus oculatus, Pelogonus americanus. Fig. 204, and Mononyx stygicus. Shore-Bugs belong to the family of Saldidse, of which twelve species inhabit the United States, four on the Atlantic Coast. They may often be seen in considerable numbers on the margins of water ways and take flight when disturbed but soon alight. Their color is dark grey with white and yellow markings, and their size ^ to 3/^ inch in length. The most generally distributed Eastern United States species are Salda signoretii, Fig. 205, S. pellita, S. splacelata and S. anthracina. Broad-Shouldered Water-Striders be- long to the family of Veliidse and are distinct and different from the true Water-striders. They are smaller, much broader across the thorax and thicker of limb, all of them aquatic in habit and almost constantly on the water, congregating in school of hundreds. The most generally distributed species of the Atlantic Coast States are Hebrus americanus. Fig. 206, and Rhagovelia col- laris. Fig. 207, both of small size. All are pre- daceous and feed on the juices of insects which fall into the water, mos- quito larvse and the tiny alevins of fishes, when they come to the surface of the water to take air. Water-striders belong to the family of Hydrometrid^e, slender long-legged insects which dart about on the surface of ponds and pools of both fresh and salt water. Some species are winged and others wingless, varying in length from J^ to
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectaquariu, bookyear1908
