. 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 anterior legs are prehensile and adapted to aid in holding their prey. The many hundred eggs are deposited in a cocoon spun by the female and attached to the lower side of the floating leaves of aquatic plants or drifting leaves and branches, Fig. 226, to which the female clings with her posterior legs, and guards until the larvas are hatched. These also somewhat resemble those of the Dy tiscidas
. 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 anterior legs are prehensile and adapted to aid in holding their prey. The many hundred eggs are deposited in a cocoon spun by the female and attached to the lower side of the floating leaves of aquatic plants or drifting leaves and branches, Fig. 226, to which the female clings with her posterior legs, and guards until the larvas are hatched. These also somewhat resemble those of the Dy tiscidas but are thicker and have shorter mandables, those of the larger genera growing to lyi or 3 inches m length and ^ inch thick. They are popularly known as Spear- mouths, and are ravenous feeders, destroying water insects, flies, small snails, tadpoles, fishes, and their younger and weaker brethren; all of which they attack and crush with their power- ful madables to extract the juices. They are very destructive to young fishes and will destroy hundreds in a few days in the hatching and rear- ing tanks. The largest beetles of this family be- long to the genus Hydro- philus of which the most common species are//./n- apgularis and H. glaber. Fig. 225,the next larger to Hydrocharis, of which FIG. 226. Water Scavenger-beetle or Great Water-beetle, Hydrophilus H. OOtUSatUS IS the mOrC glaber. Female attached to Egg-pouch and predaceous larva, or Spear-mouth, (^q^^^^q-^ and the Smaller to Hydrochus, of which about twelve species inhabit the Eastern and Middle States, the more common forms being and There are a number of other genera, and some of the smaller species are not aquatic but live in moist earth and manure, feeding upon Dipterous larvas. The Water-scavenger beetles are nocturnal in their flights, strong of wing and are attracted by lights and bright surfaces; are frequently seen near electric lights and will penetrate into houses, instances being reco
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectaquariu, bookyear1908
