

84 Annals Entomological Society oj America [Vol. XII, 



LITERATURE CITED. 



Busck, August. 1917. The pink boUworm, Pectinophora gossypiella. Jour. 

 Agr. Research, v. 9, no. 10, p. 343-370, 7 figs., 6 pis. 



Forbes, W. T. M. 1910. A structural study of some caterpillars. Ann. Ent. 

 Soc. Amer., v. 3, p. 94-143, 11 pis. 



. 1911. A structural study of the caterpillars — II. The Sphingidae, 



Ibid., V. 4, p. 261-282, 2 pis. 

 Fracker, S. B. 1915. The classification of lepidopterous larvae. 111. Biol. 



Monograph, v. 2, no. 1, 169 p., 10 pis. 



Heinrich, Carl. 1916. On the taxonomic value of some larval characters in the 

 Lepidoptera. Proc. Ent. Soc. Wash., v. 18, no. 3, p. 154-164, 2 figs., 1 pi. 



. 1918. On the lepidopterous genus Apostega and its larval affinities. 



Ibid., V. 20, no. 2, p. 27-34, 4 pis. 



Mclndoo, N. E. 1914a. The olfactory sense of the honey bee. Jour. Exp. Zool., 



V. 16, no. 3, p. 265-346, 24 figs. 

 ■ . 1914b. The olfactory sense of Hymenoptera. Proc. Phila. Acad. 



Nat. Sci., V. 66, p. 294-341, 3 figs., 2 pis. 



1915. The olfactory sense of Coleoptera. Biol. Bui., v. 28, no. 6, 



p. 407-460, 3 figs., 2 pis. 



1918. The olfactory organs of a coleopterous larva. Jour. Morph., 



v. 31, no. 1, p. 113-131, 33 figs. 

 Nagel, W. A. 1894. Vergleichend physiologische und anatomische Untersuch- 

 ungen iiber den Geruchs und Geschmacksinn und ihre Organe. Bibliotheca 

 Zoologica, Heft 18. Die Schmetterlingsraupen, p. 113-115 with fig. 32. 



Tsou, Y. H. 1914. Homology of the body setae of some lepidopterous larvae. 



Trans. Amer. Mic. Soc, v. 33, p. 223-260, 4 pis. 

 Verschafifelt, Ed. 1910. The cause determining the selection of food in some 



herbivorous insects. Proc. Sec. Sci. Royal Acad. Sci., (Kon. Akad. van 



Wetenschappen) Amsterdam, v. 13, pt. 1, p. 536-542. 



