WATER BEETLES IN RELATION" TO PONDFISH CULTURE. 



339 



Hall, C. A. 



1914. Common British beetles, viii+88 pp., 23 pis. London. [The adult and larva of Dytiscus 

 marginalis were well described and finely figured.] 

 Hankinson, Thos. L. 



1907. A biological survey of Walnut Lake, Mich. Michigan State Biological Survey Report for 

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 ham, pp. 252-271.] 

 Harris, Thaddeus William. 



1828. Contributions to entomology; Dytiscidae. New England Farmer, vol. 7, No. 5, p. 158 

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Haupt, H. 



1907. Was mich eine Hydrophilus (Hydrous) Larve lehrte. Wochenschrift fiir Aquarienkunde, 



Bd. 4, pp. 326-328. Braunschweig. 

 1909. Zur Biologic der Hydrous (Hydrophilus) Larve. Zeitschrift fiir Naturwissenschaften, 



Bd. 81, pp. 301-304. Leipzig. 

 Henneguy, L. Felix. 



1904. Les insectes: Morphologie, reproduction, embryog^nie. xviii+804 pp., 622 figs., IV col. 

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 Henshaw, Samuel. 



1885. List of the Coleoptera of America north of Mexico. 161 pp. Published by American En- 

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 Hentschel, Ernst. 



1909. Das Leben des Siisswassers. Eine gemeinverstandliche Biologie. IV 4-336 pp., 299 figg. 



17 Taf. Miinchen. [Included water beetles.] 

 Herbst, Johann Friedrich Wilhelm. 



1797. Natursystem. * * *. Kafer. Bd. 7. Berlin. [Included water beetles.] 

 Holste, G. 



1910. Das Nervensystem von Dytiscus marginalis. Ein Beitrag zur Morphologie des Insekten- 



korpers. Zeitschrift fiir naturwissenschaftliche Zoologie, Bd. 96, pp. 419-476. Leipzig, 

 1913. Das Nervus proctodaeo-genitalis des Dytiscus marginalis L. Zoologischer Anzeiger, Bd. 

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 Hope, Frederic William. 



1838. The coleopterists' manual. Vol. 2. London. [Proposed the genus Hydrocharis, p. 125, 

 which becomes a synonym of Hydrophilus.] 

 Horn, George H. 



1883. Miscellaneous notes and short studies of North American Coleoptera. Transactions, Ameri- 

 can Entomological Society and Proceedings, Entomological Section of the Academy of 

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1883a. [Maxillae of Gyrinidse.] Ihid. (Proceedings), p. xvi. 



1885. A note on some Hydrophilidse. The Canadian Entomologist, Vol. XVII, pp. 137-139. 

 London, Canada. 



1890. Notes on the species of Ochthebius of Boreal America. Transactions, American Entomologi- 

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 1890a. Notes on some Hydrobiini of Boreal America. Ihid., pp. 237-278, Pis. Ill and IV. 

 1890b. A revision of the Sphseridiini inhabiting Boreal America. Ihid., pp. 279-314, Pi. IX. 

 Jacqueline-Duval, Pierre Nicholas Camille. 



1856. Manuel entomologique. Genera des Coleopteres d'Europe. * ^. Tome 1, cah. 3. 

 Paris. [Contains dytiscids and gyrinids.] 

 JuDAY, Chancey. 



1907. A study of Twin Lakes, Colo. , with especial consideration of the food of the trouts. Bulletin, 



U. S. Bureau of Fisheries, Vol. XXXVI, 1906 (1907), pp. 147-178, PI. Ill, 6 text figs., 

 11 tables. Washington. 

 Kellogg, Vernon L. 



1908. American insects, xiv -f 694 pp., 812 figs. Henry Holt & Co., New York. 



