June, 191 1.] Severin-Severin : Habits of Belostoma and Nepa. 107 



7. 1905. Notes on Collecting, Preserving, and Rearing Aquatic 



Hemiptera. Ibid., XXXVII, pp. 137-142. 



8. 1905. The Three Ranatras of the Northeastern United States. Ibid,, 



XXXVII. pp. 187-8. • 



9. 1905. Ent. Neivs, XVI, p. 53. 



ID. 1906. Life-Histories of North American Water-Bugs. I. Life- 

 History of Belostoma fluminea Say. Can. Ent., XXXVIII, pp. 

 189-197. 



11. 1906. II. Life-History of Ranatra quadridentata Stal. Ibid., 



XXXVIII, pp. 242-252. 



12. 1906. Ways of Progression in Water-Bugs. Ent. Nezt's, XVII, 



pp. 1-4. 



13. • • 1907. Two Undescribed Water-Bugs from the United States. Can. 



Ent., XXXIX, pp. 225-8. 



14. 1907. Diplonychus, Laporte (= Hydrocyrius, Spinola), and its Rela- 

 tion to the other Belostomatid Genera. Ibid., XXXXIX, pp. 333-341. 



15. BuHMEisTER, H., 183S. Handbuch der Entomologie. II, pp. 195—200. 



16. CoMSToCK, J. H., 1888. An Introduction to Entomology, pp. 187-9. 



17. 1895. A Manual for the Study of Insects, pp. 130-133. 



18. DiMMocK, G., 1886. Belostomidae and some other Fish-Destroying Bugs. 



Ann. Rep. Fish and Game Comni. Mass., VI, pp. 353-9- 



19. FoLSOM, J. W., 1906. Entomology with Special Reference to its Bio- 



logical and Economic Aspects, pp. 184-192. 



20. Harvey, G. W., 1907. A Ferocious Water-Bug. Can. Ent., XXXIX, pp. 



1 7—2 1 . 



21. Holmes, S. J., 1905. The Reactions of Ranatra to Light. Journ. Conip. 



Neurol, and Psychol., XV, pp. 305-349- 



22. 1906. Death-Feigning in Ranatra. Ibid., XVI, pp. 200-216. 



2^. 1907. Observations on the Young of Ranatra quadridentata Stal. 



Biol. Bull., XII, pp. 158-164. 



24. 1908. The Instinct of Feigning Death. Popular Sci. Monthly, 



LXXII, pp. 179-185. 



25. Howard, L. O., 1901. The Insect Book, pp. 276-9. 



26. Kellogg, V. L., 1905. American Insects, pp. 199-201. 



27. KiNGSLEY, J. S., 1884. Standard Natural History. II, pp. 253-8. 



28. KiRKALDY, G. W., 1904. On the Method of "Oaring" in Water-Bugs 



(Hemiptera). Ent. Nezvs, XV, p. 344. 



29. 1906. A Guide to the Study of British Water-Bugs (Aquatic 



Hemiptera or Rhynchota). The Ent., XXXIX, pp. 154-157. 



30. 1908. A Synonymic Note on Certain Belostomidae (Hemiptera). 



Can. Ent., XL, p. 164. 



31. LocY, W. A., 1884. Observations on the Pulsating Organs in the Legs of 



certain Hemiptera. Am. Nat., XVIII, pp. 13-19- 



^2. 1884. Anatomy and Physiology of the Family Nepidae. Ibid., 



XVIII, pp. 250-S and 353-367- 



