viii 



A CKNO WLED G ME NTS. 



^11^ 284, 302, 308, 309, 310, 311, 312, 313, 324, 325, 326, 327, 



328, 329, 330, 331, 337, 338, 347, 353, 354, 367, 372, 373, 400, 

 403, 422, 428, 429, 443 ; and from French's "Butterflies of the 

 Eastern United States," Nos. 253, 260, 261, 262, 268, 269, 273. 



From Prof. Lawrence Bruner, of the University of Nebraska, 

 were purchased electrotypes of figures Nos. i, 26, 31, 33, 42, 46, 

 47, 51, 52, 6ib, 62, 68, 70, 71, 96, 107, no, 115, 139, 140, 141, 

 156, 163, 186, 256, 319, 320, 335, 336, 355, 421, 433. 



From Houghton, Mifflin & Co. , pubHshers of the ' ' Riverside 

 Natural History," were purchased Nos. 12, 17, 77, 78, 106, 177, 

 378, 414, 423, 451, 472. 



From the Entomological Society of Ontario electrotypes were 

 obtained for figures Nos. 207, 208, 258, 420, 456. 



From the Cornell Experiment Station, through the kindness 

 of Mr. M. V. Slingerland, electrotypes were secured of figures 

 Nos. 40, 119, 145. 



Mr. G. C. Davis, of the Agricultural Experiment Station of 

 Michigan, furnished stereotypes of figures Nos. 196, 235, 301, 

 370, 388, 439. 



Prof Herbert Osborn, of the Iowa Agricultural College, kindly 

 loaned for reproduction figures Nos. 108, 356, 382. 



Dr. Otto Lugger, State Entomologist of Minnesota, supplied 

 electrotypes of figures Nos. 280, 427, 442. 



Dr. F. H. Snow, of Lawrence, Kansas, loaned for reproduc- 

 tion figures Nos. 123, 210. 



Mr. F. M. Webster, of the Ohio Experiment Station, per- 

 mitted the reproduction of figures Nos. 205, 237. 



Mr. A. D. Hopkins, of the West Virginia Experiment Station, 

 granted the same favor for figures Nos. 384 and 385. 



Dr. A. S. Packard kindly supplied electrotypes of figures Nos. 

 16 and 470. 



To Dr. G. Brown Goode, Director of the United States Na- 

 tional Museum, I owe electrotypes of figures Nos. 27 and 381. 



From Mrs. C. V. Riley were purchased electrotypes of figures 

 Nos. Ill and 361. 



Dr. J. A. Lintner, State Entomologist of New York, kindly 

 supplied an electrotype of figure No. 282. 



Prof S. A. Forbes was equally courteous concerning figure 

 No. 187. 



