DIAPERDSri NORTH OF MEXICO — TRIPLEHORN 357 



Utah State University (Utah), George F. Knowlton 



Abbreviations for collectors and collections used in the text are: 



C. A. Triplehorn collection (CAT) 



Dorothy J. and Josef N. Knull (DJ and JNK) 



Musee National d'PIistoire Naturelle, Paris (MNHN) 



Norma Jean and Elbert L. Sleeper (NJ and ELS) 



University of Moscow Museum of Zoology, U.S.S.R. (UMMZ) 



A number of indi^dduals have been invaluable in securing infor- 

 mation on generally inaccessible literature, locality data, collecting 

 notes, and other matters. Prominent among these must be men- 

 tioned: Dr. J. G. Franclemont, Dr. Howard E. Evans, and Dr. Henry 

 Dietrich, all of Cornell University; Mr. T. J. Spilman, U.S. Dept. Agric. 

 at the U.S. National Museum; Professor J. N. Knull, Ohio State 

 Univ.; Dr. W. L. Brown, Jr., and Dr. E. A. Chapin, Museum of 

 Comparative Zoology, Harvard University; Dr. H. J. Grant, Jr., 

 Academy of Natural Sciences of Philadelphia; Dr. H. B. Leech, 

 California Academy of Sciences; and Dr. E. L. Sleeper, Long Beach 

 State College. 



Dr. J. Balfour-Browne of the British Museum provided me with a 

 set of the Champion cotypes which are under his supervision and 

 compared specimens with types in the Bates collection at the same 

 institution. His suggestions were most welcome and much credit 

 for the accuracy of many statements contained herein is directly 

 attributable to his keen observations. 



The true status of a number of Motschoulsky's species could not 

 have been ascertained without the enthusiastic cooperation of A. 

 Ahelochovtsev and S. Kelejnikova of the Zoological Museum of the 

 University of Moscow, U.S.S.R. The latter's meticulous comparisons 

 of specimens that I submitted with the Motschoulsky types has clari- 

 fied a number of names which have plagued coleopterists for three 

 quarters of a century. 



A. Vilhers of the Musee National d'Histoire Naturelle has assisted 

 by comparing specimens with the Chevrolat types. 



The many curators of the various North American collections have 

 been especially cooperative in either sending me material for study or 

 in giving me unrestricted use of collections under their supervision. 

 To all of them go my sincerest thanks. 



Finally, to my wife, Wanda E. Triplehorn, goes my full measure of 

 gratitude for her help in editing, typing, and checking this manuscript. 



Tribe Diaperini Redtenbaclier 



DiAPERiDEs Redtenbacher, 1845, p. 128; 1849, p. 52; 1858, p. cv. — Lacordaire, 



1859, p. 298.— Champion, 1886, p. 170, 

 DiAPERiENs Mulsant, 1854, p. 195. 



DiAPERiDAE Thomson, 1859, p. 115; 1864, p. 248; 1868, p. 122. 

 DiAP^RiTEs Jacquelin du Val, 1861, pp. 295, 329. 



