A CAWO WLED G ME NTS. jx 



Prof. C. P. Gillette loaned for reproduction figure No. 150. 

 Mr. Frank Sempers, of Philadelphia, kindly gave figure No. 



49- 



Mr. H. G. Hubbard, of Washington, obligingly loaned figure 



No. 359. 



The following are originals, and were especially prepared for 

 this work: Nos. 2, 3, 8, 9, 18, 19, 20, 21, 24, 25, 54, 57, 63, 

 66, 67, 69, 113, 126, 135, 153, 154, 155, 184, 185, 215, 248, 249, 

 250, 251, 252, 257, 266, 267, 272, 285, 304, 305, 306, 322, 323, 

 344, 345> 346, 348, 379, 415, 436, 453. Of these original 

 figures, some are photographs, others are from drawings by the 

 author, some are redrawn, and a few are duplications of pub- 

 lished figures where no plates were known to be in existence. 



To all who have in any way aided in the preparation of this 

 work, and especially to Dr. L. O. Howard, of Washington, who 

 kindly read my chapter on Hymenoptera, and Prof. Lawrence 

 Bruner, who kindly read my chapter on Orthoptera, I tender 

 my sincere thanks. 



