. Goldfish breeds and other aquarium fishes, their care and propagation : a guide to freshwater and marine aquaria, their fauna, flora and management. With 280 explanatory illustrations, printed with the text. FIG. 211. Hellgramite, larvaof the FIG. 212. Horned Dobson, Corydalh corinita. The larvae are known as Dobsons, Hellgramites, Bugies, etc., and are exten-sively used as bait for game fishes. They live under rocks and AQUATIC INSECTS OF FRESHWATER stones in the streams and feed on the larva; and nymphae of May-flies,Stone-flies and other aquatic insects. The larval stage lasts th
. Goldfish breeds and other aquarium fishes, their care and propagation : a guide to freshwater and marine aquaria, their fauna, flora and management. With 280 explanatory illustrations, printed with the text. FIG. 211. Hellgramite, larvaof the FIG. 212. Horned Dobson, Corydalh corinita. The larvae are known as Dobsons, Hellgramites, Bugies, etc., and are exten-sively used as bait for game fishes. They live under rocks and AQUATIC INSECTS OF FRESHWATER stones in the streams and feed on the larva; and nymphae of May-flies,Stone-flies and other aquatic insects. The larval stage lasts three monthsand longer, but the pupal stage is quickly passed, and in less than a monthafter the larva leaves the water to make a cell for itself nearby, in whichto undergo the metamorphosis, the adult insect or imago appears. Some of thecommon speciesof Sialiadaj, ofsmaller size, theAlder-flies, orChauliodes, , hav-ing greyish wingsand featherlikeantenna?, and of abrownish - blackcolor with white-spotted speciesare not quite sogenerally distrib-uted. All theDobson larvae arecarnivorous anddestructive tosmall fishes andsnails. May-Flies orShad-Flies be-long to family ofEphemerida;, sig-nifying lasting
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectaquariu, bookyear1908
