WATER BEETLES IN RELATION TO PONDFISH CULTURE. 
343 
Platt, Emilie Louise. 
1915. The population of the “blanket-algae ” of fresh-water pools. The American Naturalist, Vol. 
XLIX, pp. 752-762, 1 map. The Science Press, New York. [In this blanket were found 
undetermined dytiscid larvae, the larva of the haliplid genus Peltodytes, and adults of two 
genera of hydrophilids.] 
PoRTIER, P. 
1911. Recherches physiologiques sur les insectes aquatiques. Archives de Zoologie exp4rimentale 
et generale, Serie 5, T. 8, pp. 89-379. Paris. 
PoUJADE, G. A. 
1901. Sur V Hydrophilus piceus (Linn.). Bulletin, Society Entomologique de France, Ann6e 1901, 
pp. 229-230. Paris. 
Putnam, J. D. 
1876. List of Coleoptera found in the vicinity of Davenport, Iowa. Proceedings, Davenport 
Academy of Natural Sciences, Vol. 1, 1867-1876 (1876), pp. 169-173. Davenport. 
1876a. List of Coleoptera collected in the Rocky Mountains of Colorado in 1872. Ibid., pp. 177-182. 
1876b. Report on the insects collected by Captain Jones’ expedition to northwestern Wyoming in 
1873. Ibid., pp. 187-192. 
1876c. Report on the insects collected in the vicinity of Spring Lake Villa, Utah Co., Utah, during 
the summer of 1875. Ibid., pp. 193-205. 
Randall, J. W. 
1839. Descriptions of new species of coleopterous insects inhabiting the State of Maine. Boston 
Journal of Natural History, Vol. II, pp. 1-33. Boston. [Hydrophilus agilis ( Laccobius 
agilis), p. 19.] 
Reeker, H. 
1891. Die Tonapparate der Dytiscidse. Archiv fur Naturgeschichte, Bd. LVII, pp. 105-112, PI. VI. 
Berlin. 
Regimbart, M. 
1878. fitude siu: la classification des Dytiscidse. Annales, Soci6t4 Entomologique de France, 
Serie 5, T. 8, pp. 447-466, PI. 10. Paris. 
Reitter, Edmund. 
1909. Coleoptera. In Die Susswasserfauna Deutschlands, hrsg. von A. Brauer. iv+235 pp. Jena. ^ 
Rengel, C. 
1901. Zur Biologie des Hydrophilus piceus. Biologisches Centralblatt, Bd. 21, pp. 173-182, 209-220. 
Berlin. 
Rey, Cl. 
1887. Essai d’4tudes sur certaines larves de Coleopt&res. Annales, Soci4t6 Linnbenne de Lyon 
Nouvelle serie, T. 33, pp. 131-259, Pis. I and II. [Ochthebius ( Calobius ) quadricollis Muls, 
p. 141.] 
Richmond, E. Avery. 
1920. Studies on the biology of the aquatic Hydrophilidse. Bulletin, American Museum of Natural 
History, Vol. XLII, pp. 1-94, Pis. I-XVI. New York. [Gave the complete life histories 
of 9 species and described the eggs and larvae of 13 other species, with good figures of all.] 
Riley, C. V. 
1881. Notes on Hydrophilus triangularis [Say], The American Naturalist, Vol. XV, pp. 814-817, 
2 figs. Philadelphia. 
1885. Water-beetles destroying carp, Bulletin, U. S. Bureau of Fisheries, Vol. V, 1885, p. 311. 
Washington. [Quoted in full on page 251.] 
Roberts, C. H. 
1889. Notes on water beetles. Entomologica Americana, Vol. V, p. 82. Brooklyn, N. Y. 
1895. The species of Dineutes of America, north of Mexico. Transactions, American Entomological 
Society, Vol. XXII, pp. 279-288, Pis. V and VI. Philadelphia. [Does not include either 
food or habits.] 
1905. The distinctive characters of the eastern species of the genera Dytiscus and Cybister. Jour- 
nal, New York Entomological Society, Vol. XIII, pp. 103-107. New York. [These 
characters are all anatomic.] 
1913. Critical notes on the species of Haliplidse of America, north of Mexico, with descriptions of 
new species. Ibid., Vol. XXI, pp. 91-123. 
