. Fresh-water biology. Freshwater biology. 914 FRESH-WATER BIOLOGY There remain three large families of the diptera of very great im- portance. Two of these, the Culicidae and the Tabanidae, are impor- tant because of the damage they do, and the other, the Chironomidae, because of the food it furnishes to fishes. The mosquitoes (CuH- cidae), since the discovery of their importance to man as agents for the dissemination of the germs of malarial and other fevers, have suddenly become well known. A number of good books are now available containing descriptions, figures, and detailed accounts of t
. Fresh-water biology. Freshwater biology. 914 FRESH-WATER BIOLOGY There remain three large families of the diptera of very great im- portance. Two of these, the Culicidae and the Tabanidae, are impor- tant because of the damage they do, and the other, the Chironomidae, because of the food it furnishes to fishes. The mosquitoes (CuH- cidae), since the discovery of their importance to man as agents for the dissemination of the germs of malarial and other fevers, have suddenly become well known. A number of good books are now available containing descriptions, figures, and detailed accounts of the habits and Hfe histories of the economic species. Some of the most interesting members of the family are not included in these books among the pests, since the adults do not bite. Corethra, whose phantom larvae are a part of the plankton, is one of these, and Pelorempis, the large culicid inhabitant of cold springs is another. The biting adults of the large horse-flies (Tabanidae) are like- wise serious pests of the domesticated animals. Their naked. Fig. 1383. The speckled midge, Tanypus carneus, male. translucent larvae, tapering to either end and ringed with fleshy tubercles, are carnivorous, and are found in the trash of the bottom in all shoal fresh waters. But two genera, Tabanus and Chrysops, are of much importance in our fauna. The midges (Chironomidae, Fig. 1383) constitute undoubtedly. 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 Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
