

Illustrations. 



All the blocks used in illustrating this list belong to either the State of New 

 Jersey or to the New Jersey Agricultural College Experiment Station ; none 

 have been made or purchased especially for this book. These cuts have been 

 accumulated since the College Station has been established to illustrate the 

 bulletins and reports and some of the lectures delivered before the State Board 

 of Agriculture Some of the blocks had been purchased before I became con- 

 nected with the Station, chiefly from the late Dr. C. V. Riley, and they have 

 been constantly added to since that time, either by purchase of electrotypes 

 from the individuals or institutions originally publishing them, by purchase of 

 duplicates of re-drawn figures, by re-engraving from prints or in other ways. 



No records have been preserved of the immediate source of the blocks, and I 

 desire to give credit here as nearly as possible to the original author or pub- 

 lisher rather than the person or institution from whom the electrotype was 

 directly obtained. 



The following are from the Reports or Bulletins of the New Jersey College 

 Experiment Station or from the Reports of the State Board of Agriculture : 

 1, 33, 36, 37, 38, 43, 44, 47, 59, 61, 62, 71, 73, 84, 87, 99, 101, 104, 105, 111, 112, 

 113, 114, 117, 123, 125, 138, 157a, 158, 162, 166, 190, 192, 201, 215, 216, 218, 219, 

 221, 226, 232, 234, 235, 239, 240, 241, 249, 260, 276, 283, 284, 285, 289, 291, 297, 

 310, 311, 320, 321, 322, 329. 



The pioneer in the preparation of artistic and characteristic illustrations of 

 insects in the United States was undoubtedly Dr. C. V. Riley, whose untimely 

 death was a severe loss to economic entomology. The numerous figures in his 

 Misso"ri Reports, in the American Entomologist, and those signed by him in 

 the publications of the United States Departments of the Interior and Agricul- 

 ture, mark a distinct advance in this branch of professional art. The following 

 are duplicates of or reproductions from his Figs. : 15, 18, 19, 21, 22, 34, 35, 49, 

 55, 58, 64, 66, 67, 68, 70, 72. 75, 76, 77, 80, 81, 82, 83, 86, 88, 92, 96, 102, 103, 106, 

 107, 108, 110, 115, 120, 122, 124, 126, 128, 131, 135, 142, 143, 144, 145, 147, 148, 

 149, 150, 151, 152, 153, 165, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 187, 

 188, 189, 195, 196, 197, 199, 200, 203, 204, 205, 206, 208, 214, 220, 222, 223, 227, 

 228, 229, 230, 245, 246, 247, 248, 252, 253, 255, 261, 262, 263, 268, 273, 274, 275, 

 278, 279, 298, 299, 300, 301, 302, 309, 313, 314, 323, 324. 



Scarcely second in the importance of its contributions to entomological art, 

 stands the Division of Entomology of the United States Department of Agricul- 

 ture. During the incumbency of Dr. Riley as Entomologist a high grade of 

 excellence in illustration was established and this has been more than main- 

 tained by his successor in office, Dr. L. O. Howard. The artists employed in 

 the work have had years of experience and actual knowledge of insects and 

 their structure ; but in addition their work is superintended and directed by 

 the authors of the essays or reports to be illustrated. In this way exceptional 

 accuracy of resemblance is attained and such fidelity to detail that improvement 



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