NOTE. 



The original sources of those illustrations in this book which 

 have not been prepared under the direction of the author should 

 be credited as follows : After C. V. Riley, Figs. 2, 5, 9-11, 15, 

 17-22, 33, 34, 36, 39, 41-44, 50; after Brehm, Fig. 12 ; after Harris, 

 Figs. 23-25; after Forbes, Figs. 31, 32; after Packard, Figs. 27, 

 28, 30. Fig. 29 is after an English author, and Figs. 45-49 are 

 reproductions of illustrations published by the Division of Ento- 

 mology of the United States Department of Agriculture, having been 

 originally drawn under the direction of Mr. C. L. M'arlatt. Many of 

 the other figures were drawn for this book by Mr. James Hall. 



C. M. W. 



Iv 



