5 



9. Collections troni the Wi'slcni States mul Tenilories lieyoiul I he 

 Mississippi Kiver, made \>\ Jjeiit. W. L. Carpenter, atlaclieil in IST,") 1o 

 I'ldl'essoi- llayden's Geological Survey of llie Teiiituries, and dnrin<i; the 

 same S(>ason l)y Mr. T. L. Meail.and diirinir llie summer of ISTf) liy myself in 

 Colorado and I'tali. under tlie aus[)ices of Professoi- Hayden's Survey. C(d- 

 lections from Colorado, from Mr. J. Ividinirs, and tlie Deinirlment of Aiiri- 

 culture at Washington, and in Lawrenee, Kans., Iiy Prof. F. H. Snow of tlie 

 University of Kansas. 



10. Very large eolleetions in line order from tlif Paeilie States, rec<'ived 

 from Messrs. Henry Edwards and James lielirens, willi the eoneclions made 

 in \'ietoria, Vaneoujei-'s Island, and CaHl()rnia, l)y the late j\Ir. G K ("rotch, 

 and now contained in the Museum of Comparative Zoology, together wilh a 

 nund>er collected in Caliii)rnia by .Mr. Alexanch-r Agassiz, and a few received 

 from ^Ir. Junius Hollemau. 'Vo all tiiese institutions and genth'men, as well 

 as to any others who may have been omitted in this enumeration, are (bie my 

 siueen; thanks. 



Good collections ()fEuro|)ean generic types have been received through 

 the kindness of Professor P. C. Zeller and Dr. O. Staudinger. These have 

 been indispensable to me, and saved me some mistakes otherwise unavoi<l- 

 able. 



While in France in 1872, M. Guenee most generously threw opiMi his 

 entire collection of this family fm- my inspection and comparison ol' speci- 

 mens, taken with me tor the ixirjjose, with his types. I am also indebted to 

 the late Dr. J. E. Gray, and Mr. Frederic Smith of the British Museum, lor 

 the privilege of examining \Valker's types. The species thus examined with 

 European and other types are indicated in the synonymy thus : !!!. Those 

 species recognized l)y me at sight, but not compared, are iiulicated l)y a 

 single mark of exclamation. I have also had drawings made of the remain- 

 ing types of the late ]\lr. Walker, with the kind permission of Dr. A. Giinf her, 

 keeper of the zoological department of the British Museum, the work of th(; 

 artist having l)een kiiully superintended by Mr A. G. Butler, assistant in the 

 museum. By the liberality of these gentlemen I have been enabled to 

 identify all of Walker's types >i«jc to be found in tin; British ]\Iuseum: for 

 several species, stated by him as being in the national coUe(;tion, were not to 

 be found. Descriptions of those .species of Guenee and Walker, which I 

 have l)eeu unable to determine, but which 1 have seen and regard as good 



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